KR20220099099A - Composition and organic light emitting device including the same - Google Patents

Abstract

Provided are a composition including a predetermined first compound, a second compound, and a third compound, and an organic light emitting element including the same. The organic light emitting element may have a long lifespan.

Description

Composition and organic light emitting device including the same

A composition and an organic light emitting device including the same are provided.

An organic light emitting device is a self-luminous device that has a wide viewing angle and excellent contrast, has a fast response time, has excellent luminance, drive voltage and response speed characteristics, and can be multicolored compared to conventional devices. .

According to an example, the organic light emitting device may include an anode, a cathode, and an organic layer interposed between the anode and the cathode and including a light emitting layer. A hole transport region may be provided between the anode and the emission layer, and an electron transport region may be provided between the emission layer and the cathode. Holes injected from the anode move to the emission layer via the hole transport region, and electrons injected from the cathode move to the emission layer via the electron transport region. The holes and electrons recombine in the emission layer region to generate excitons. Light is generated as this exciton changes from an excited state to a ground state.

It is to provide a novel composition and an organic light emitting device including the same.

According to one aspect, it comprises a first compound, a second compound and a third compound,

The first compound, the second compound and the third compound are each different from each other,

The first compound satisfies one of the following <Condition 1> and <Condition 2>,

The second compound is provided with a composition comprising a compound represented by the following formula (1):

<Condition 1>

The first compound contains a transition metal

<Condition 2>

The difference between the triplet energy level of the first compound and the singlet energy level of the first compound is 0.4 eV or less, and the first compound is capable of emitting delayed fluorescence

<Formula 1>

In Formula 1, Ring A ₁ is a condensed cyclic group in which three or more cyclic groups are condensed with each other, wherein the cyclic group is a C ₅ -C ₃₀ carbocyclic group or a C ₁ -C ₃₀ heterocyclic group,

In Formula 1, L ₁ is a single bond, a C ₅ -C ₃₀ carbocyclic group unsubstituted or substituted with at least one R _10a , or C ₁ -C ₃₀ heterocyclic group unsubstituted or substituted with at least one R _10a click group,

In Formula 1, a1 is an integer of 1 to 5,

In Formula 1, R ₁ is a group represented by Formula 2 or Formula 3,

<Formula 2> <Formula 3>

In Formula 1, b1 is an integer of 3 to 10,

In Formulas 2 and 3, Ring A ₃ and Ring A ₄ are each independently a C ₅ -C ₃₀ carbocyclic group or a C ₁ -C ₃₀ heterocyclic group,

In Formulas 2 and 3, T ₃ and T ₄ are each independently a group represented by *-C(R ₅ )(R ₆ )(R ₇ ) or *-Si(R ₅ )(R ₆ )(R ₇ ) ego,

In Formulas 2 and 3, c3 and c4 are each independently an integer of 0 to 10, when c3 is 2 or more, 2 or more T ₃ are the same or different, and when c4 is 2 or more, 2 or more T ₄ are each other same or different,

In Formula 3, T ₁₁ is a single bond, O, S, N(R ₈ ), C(R ₈ )(R ₉ ), or Si(R ₈ )(R ₉ ),

In Formulas 1 to 3, R ₂ to R ₉ and R _10a are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , a hydroxyl group, a cyano group, a nitro group, or an amino group , amidino group, hydrazine group, hydrazone group, carboxylic acid group or salt thereof, sulfonic acid group or salt thereof, phosphoric acid group or salt thereof, substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or an unsubstituted C ₆ -C ₆₀ aryloxy group, a substituted or unsubstituted C ₆ -C ₆₀ arylthio group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent non- Condensed aromatic polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₁ )(Q ₂ ), -Si(Q ₃ )(Q ₄ )(Q ₅ ), -Ge(Q) ₃ )(Q ₄ )(Q ₅ ), -B(Q ₆ )(Q ₇ ), -P(=O)(Q ₈ )(Q ₉ ) or -P(Q ₈ )(Q ₉ ),

In Formulas 1 to 3, b2 to b4 are each independently 0 to 10, when b2 is 2 or more, two or more R ₂ are the same or different, and when b3 is 2 or more, two or more R ₃ are the same or different, and when b4 is 2 or more, 2 or more R ₄ are the same as or different from each other,

said substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, Substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group and substituted monovalent non-aromatic condensed polycyclic group The substituent is

Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or a salt thereof, sulfonic acid or a salt thereof, phosphoric acid or a salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkyl a nyl group or a C ₁ -C ₆₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or salt thereof, sulfonic acid or salt thereof, phosphoric acid or salt thereof, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, Condensed monovalent non-aromatic polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₁₁ )(Q ₁₂ ), -Si(Q ₁₃ )(Q ₁₄ )(Q ₁₅ ), -Ge(Q ₁₃ ) )(Q ₁₄ )(Q ₁₅ ), -B(Q ₁₆ )(Q ₁₇ ), -P(=O)(Q ₁₈ )(Q ₁₉ ), -P(Q ₁₈ )(Q ₁₉ ), or any thereof substituted with a combination of, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group or C ₁ -C ₆₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or a salt thereof, sulfonic acid or a salt thereof, phosphoric acid or a salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkyl nyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₂₁ )(Q ₂₂ ), -Si(Q ₂₃ )(Q ₂₄ )(Q ₂₅ ), -Ge(Q ₂₃ )(Q ₂₄ )(Q ₂₅ ), -B(Q ₂₆ )(Q ₂₇ ) ), -P(=O)(Q ₂₈ )(Q ₂₉ ), -P(Q ₂₈ )(Q ₂₉ ), or at least one unsubstituted or substituted C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ aryl a thio group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group;

-N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₃ )(Q ₃₄ )(Q ₃₅ ), -Ge(Q ₃₃ )(Q ₃₄ )(Q ₃₅ ), -B(Q ₃₆ )(Q ₃₇ ) ), -P(=O)(Q ₃₈ )(Q ₃₉ ) or -P(Q ₃₈ )(Q ₃₉ ); or

any combination thereof;

ego,

The Q ₁ to Q ₉ , Q ₁₁ to Q ₁₉ , Q ₂₁ to Q ₂₉ and Q ₃₁ to Q ₃₉ are each independently selected from the group consisting of hydrogen; heavy hydrogen; -F; -Cl; -Br; -I; hydroxyl group; cyano group; nitro group; amidino group; hydrazine group; hydrazone group; a carboxylic acid group or a salt thereof; a sulfonic acid group or a salt thereof; a phosphoric acid group or a salt thereof; a C ₁ -C ₆₀ alkyl group unsubstituted or substituted with deuterium, a C ₁ -C ₆₀ alkyl group, a C ₆ -C ₆₀ aryl group, or any combination thereof; C ₂ -C ₆₀ alkenyl group; C ₂ -C ₆₀ alkynyl group; C ₁ -C ₆₀ alkoxy group; C ₃ -C ₁₀ cycloalkyl group; C ₁ -C ₁₀ heterocycloalkyl group; C ₃ -C ₁₀ cycloalkenyl group; C ₁ -C ₁₀ heterocycloalkenyl group; a C ₆ -C ₆₀ aryl group unsubstituted or substituted with deuterium, a C ₁ -C ₆₀ alkyl group, a C ₆ -C ₆₀ aryl group, or any combination thereof; C ₆ -C ₆₀ aryloxy group; C ₆ -C ₆₀ arylthio group; C ₁ -C ₆₀ heteroaryl group; monovalent non-aromatic condensed polycyclic group; or a monovalent non-aromatic condensed heteropolycyclic group;

According to another aspect, the first electrode;

a second electrode; and

an organic layer disposed between the first electrode and the second electrode and including a light emitting layer;

including,

The organic layer is provided with an organic light emitting device including the composition described above.

According to another aspect, the first electrode; a second electrode; m light emitting units disposed between the first electrode and the second electrode and including at least one light emitting layer; and

m-1 charge generation layers disposed between two light emitting units adjacent to each other among the m light emitting units and including an n-type charge generation layer and a p-type charge generation layer;

including,

Wherein m is an integer of 2 or more,

A maximum emission wavelength of light emitted from at least one of the m light emitting units is different from a maximum emission wavelength of light emitted from at least one of the remaining light emitting units,

The light emitting layer is provided with an organic light emitting device including the composition described above.

According to another aspect, the first electrode; a second electrode; and m light emitting layers disposed between the first electrode and the second electrode. including,

Wherein m is an integer of 2 or more,

The maximum emission wavelength of light emitted from at least one emission layer among the m emission layers is different from the maximum emission wavelength of light emitted from at least one emission layer among the remaining emission layers,

The light emitting layer is provided with an organic light emitting device including the composition described above.

The organic light emitting device may have a long lifespan.

1 is a cross-sectional view schematically illustrating an organic light emitting device 10 according to an exemplary embodiment.
2 is a cross-sectional view schematically illustrating an organic light emitting device 100 according to another exemplary embodiment.
3 is a cross-sectional view schematically illustrating an organic light emitting device 200 according to another exemplary embodiment.
4 is a graph of luminance versus external quantum efficiency of Example 1. FIG.
5 is a graph of relative lifetime versus relative luminance of Example 1.
6 is a graph of luminance versus external quantum efficiency of Comparative Example 1.
7 is a graph of relative lifetime versus relative luminance of Comparative Example 1. FIG.
8 is a graph of luminance versus external quantum efficiency of Example 2.
9 is a graph of relative lifetime versus relative luminance of Example 2.
10 is a graph of luminance versus external quantum efficiency of Comparative Example 2.
11 is a graph of relative lifetime versus relative luminance of Comparative Example 2.
12 is a graph of luminance versus external quantum efficiency of Example 3. FIG.
13 is a graph of relative lifetime versus relative luminance of Example 3.
14 is a graph of luminance versus external quantum efficiency of Comparative Example 3. FIG.
15 is a graph of relative lifetime versus relative luminance of Comparative Example 3.
16 is a graph of measuring relative HOD values of Example 1-1, Comparative Example 1, and Comparative Example 1-1.
17 is a graph of measuring relative HOD values of Example 2-1, Comparative Example 2, and Comparative Example 2-1.

composition

The composition includes a first compound, a second compound and a third compound. For the description of the first compound, the second compound, and the third compound, refer to the bar described in the present specification, respectively.

The first compound, the second compound, and the third compound included in the composition are different from each other, respectively. That is, the composition may include three or more compounds different from each other.

The composition may satisfy the following condition 3:

<Condition 3>

E _{HOMO_C1} - 0.4 eV ≤ E _{HOMO_C2} ≤ E _{HOMO_C1} + 0.1 eV

In condition 3, E _{HOMO_C1} is the HOMO energy level value of the first compound, and E _{HOMO_C2} is the HOMO energy level value of the second compound.

At this time, the HOMO energy level value was measured using an atmospheric photoelectron spectrometer (RIKEN KEIKI Co., Ltd.: AC3).

When the composition satisfies condition 3, trapping of holes in the second compound is suppressed, and electron-hole recombination occurs in the second compound to prevent direct formation of excitons. That is, it is possible to implement a mechanism in which excitons are first formed through the sensor (the first compound), and then the excitons move to the second compound, which is the final illuminant, through energy transfer, and then emit light.

The composition may satisfy the following condition 4:

<Condition 4>

R(HOD) _H /R(HOD) ₀ ≤ 1.07

In condition 4, R(HOD) _H is the relative HOD value of the composition including the first compound, the second compound, and the third compound, and R(HOD) ₀ is the first compound and the third compound The relative HOD value of the composition.

In this case, the relative HOD value is the ratio of the applied voltage required to flow a specific current density to a single hole device (HOD), and the HOD applied voltage in which the final light emitting body (second compound) is doped is compared to the undoped HOD. divided by the applied voltage. The HOD structure can have, for example, the following structure, and the fabrication method is referred to herein as described:

ITO/HAT-CN (10 nm)/NPB (50 nm)/test substance (40 nm)/NPB (10 nm)/Al.

first compound in the composition

The first compound satisfies one of the following <Condition 1> and <Condition 2>:

<Condition 1>

The first compound contains a transition metal

<Condition 2>

The difference between the triplet energy level of the first compound and the singlet energy level of the first compound is 0.4 eV or less, and the first compound may emit delayed fluorescence.

According to one embodiment, the first compound may satisfy Condition 1 above.

For example, the first compound may include an organometallic compound represented by the following Chemical Formula 101:

<Formula 101>

M ₁₁ (L ₁₁ ) _n11 (L ₁₂ ) _n12

In Formula 101,

M ₁₁ is selected from a 1-period transition metal, a 2-period transition metal, and a 3-period transition metal;

L ₁₁ is a ligand represented by one selected from Formulas 101-1 to 101-4;

L ₁₂ is selected from a monodentate ligand and a bidentate ligand;

n11 is 1,

n12 is selected from 0, 1 and 2;

In Formulas 101-1 to 101-4,

A ₁₀₁ to A ₁₀₄ are each independently selected from a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group, a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group, and a non-cyclic group become,

Y ₁₀₁ to Y ₁₀₄ are each independently a chemical bond, O, S, N(R ₉₁ ), B(R ₉₁ ), P(R ₉₁ ) or C(R ₉₁ )(R ₉₂ ),

T ₁₀₁ to T ₁₀₄ are each independently a single bond, a double bond, *-N(R ₉₃ )-*', *-B(R ₉₃ )-*', *-P(R ₉₃ )-*', * -C(R ₉₃ )(R ₉₄ )-*', *-Si(R ₉₃ )(R ₉₄ )-*', *-Ge(R ₉₃ )(R ₉₄ )-*', *-S-*' , *-Se-*', *-O-*', *-C(=O)-*', *-S(=O)-*', *-S(=O) ₂ -*', * -C(R ₉₃ )=*', *=C(R ₉₃ )-*', *-C(R ₉₃ )=C(R ₉₄ )-*', *-C(=S)-*' and * -C≡C-*',

The substituent of the substituted C ₅ -C ₃₀ carbocyclic group, the substituent of the substituted C ₁ -C ₃₀ heterocyclic group, and R ₉₁ to R ₉₄ are independently of each other, hydrogen, deuterium, -F, -Cl, - Br, -I, -SF ₅ , a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, substituted or unsubstituted A substituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, a substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ hetero Cycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -C(=O)(Q ₄₁ ), - S(=O)(Q ₄₁ ), -S(=O) ₂ (Q ₄₁ ), -N(Q ₄₂ )(Q ₄₃ ), -B(Q ₄₂ )(Q ₄₃ ), -Si(Q ₄₄ ) (Q ₄₅ )(Q ₄₆ ), -Ge(Q ₄₄ )(Q ₄₅ )(Q ₄₆ ), -P(=O)(Q ₄₇ )(Q ₄₈ ), -P(=S)(Q ₄₇ )( Q ₄₈ ), and -P(Q ₄₇ )(Q ₄₈ ), wherein the substituent of the substituted C ₅ -C ₃₀ carbocyclic group and the substituent of the substituted C ₁ -C ₃₀ heterocyclic group are selected from hydrogen no,

* ₁ , * ₂ , * ₃ and * ₄ are binding sites with M ₁₁ ,

Q ₄₁ to Q ₄₈ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₇ -C ₆₀ alkylaryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, C ₂ -C ₆₀ alkylheteroaryl group, C ₁ -C ₆₀ heteroaryloxy group, C ₁ -C ₆₀ heteroarylthio group, monovalent non-aromatic condensed polycyclic group, monovalent Condensed non-aromatic heteropolycyclic group, deuterium, -F, a cyano group, a C ₁ -C ₆₀ alkyl group substituted with at least one selected from a C ₁ -C ₆₀ alkyl group and a C ₆ -C ₆₀ aryl group, and a deuterium, -F, a cyano group , a C ₁ -C ₆₀ alkyl group and a C ₆ -C ₆₀ aryl group substituted with at least one selected from a C ₆ -C ₆₀ aryl group.

According to another embodiment, the first compound may satisfy condition 2 above.

For example, the first compound may include a thermally activated delayed fluorescence emitter represented by any one of the following Chemical Formulas 201 or 202:

<Formula 201>

In Formula 201,

X ₂₀₁ to X ₂₀₃ are each independently B or N,

A ₂₀₁ to A ₂₀₅ are each independently a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group,

L ₂₀₁ to L ₂₀₅ are each independently a single bond, a C ₅ -C ₃₀ carbocyclic group unsubstituted or substituted with at least one R _200a , or C ₁ -C unsubstituted or substituted with at least one R _{200a 30} is a heterocyclic group,

a201 to a205 are each independently an integer of 1 to 5,

R ₂₀₁ to R ₂₀₅ , and R _200a are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, A hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, a substituted or an unsubstituted C ₂ -C ₆₀ alkynyl group, a substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocyclo Alkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, Substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₅₁ )(Q ₅₂ ), -Si(Q ₅₃ )(Q ₅₄ )(Q ₅₅ ), -Ge(Q ₅₃ )(Q ₅₄ ) )(Q ₅₅ ), -B(Q ₅₆ )(Q ₅₇ ), -P(=O)(Q ₅₈ )(Q ₅₉ ) or -P(Q ₅₈ )(Q ₅₉ ),

b201 to b205 are each independently 0 to 10, when b201 is 2 or more, two or more R ₂₀₁ are the same or different from each other, and when b202 is 2 or more, two or more R ₂₀₂ are the same or different from each other, and b203 is When two or more, two or more R ₂₀₃ are the same or different from each other, when b204 is two or more, two or more R ₂₀₄ are the same or different from each other, and when b205 is two or more, two or more R ₂₀₅ are the same or different from each other,

<Formula 202>

A ₂₁₁ is a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group,

W ₂₁₁ is an acceptor group,

D ₂₁₁ is a donor,

m211 is an integer selected from 1 to 4, n211 is an integer selected from 1 to 4;

R ₂₁₁ is hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or its A salt, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkynyl group , substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted A substituted C ₆ -C ₆₀ arylthio group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic hetero group Condensed polycyclic group, -N(Q ₅₁ )(Q ₅₂ ), -Si(Q ₅₃ )(Q ₅₄ )(Q ₅₅ ), -Ge(Q ₅₃ )(Q ₅₄ )(Q ₅₅ ), -B(Q ₅₆ ) )(Q ₅₇ ), -P(=O)(Q ₅₈ )(Q ₅₉ ) or -P(Q ₅₈ )(Q ₅₉ ), and a plurality of R ₂₁₁ are optionally, bonded to each other, substituted or may form an unsubstituted C ₅ -C ₃₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group,

said substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, Substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group and substituted monovalent non-aromatic condensed polycyclic group The substituent is

Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or a salt thereof, sulfonic acid or a salt thereof, phosphoric acid or a salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkyl a nyl group or a C ₁ -C ₆₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or salt thereof, sulfonic acid or salt thereof, phosphoric acid or salt thereof, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, Condensed monovalent non-aromatic polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₆₁ )(Q ₆₂ ), -Si(Q ₆₃ )(Q ₆₄ )(Q ₆₅ ), -Ge(Q ₆₃ ) )(Q ₆₄ )(Q ₆₅ ), -B(Q ₆₆ )(Q ₆₇ ), -P(=O)(Q ₆₈ )(Q ₆₉ ), -P(Q ₆₈ )(Q ₆₉ ), or any thereof substituted with a combination of, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group or C ₁ -C ₆₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or a salt thereof, sulfonic acid or a salt thereof, phosphoric acid or a salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkyl nyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₇₁ )(Q ₇₂ ), -Si(Q ₇₃ )(Q ₇₄ )(Q ₇₅ ), -Ge(Q ₇₃ )(Q ₇₄ )(Q ₇₅ ), -B(Q ₇₆ )(Q ₇₇ ) ), -P(=O)(Q ₇₈ )(Q ₇₉ ), -P(Q ₇₈ )(Q ₇₉ ), or at least one unsubstituted or substituted, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ aryl a thio group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group;

-N(Q ₈₁ )(Q ₈₂ ), -Si(Q ₈₃ )(Q ₈₄ )(Q ₈₅ ), -Ge(Q ₈₃ )(Q ₈₄ )(Q ₈₅ ), -B(Q ₈₆ )(Q ₈₇ ) ), -P(=O)(Q ₈₈ )(Q ₈₉ ) or -P(Q ₈₈ )(Q ₈₉ ); or

any combination thereof; ego,

The Q ₅₁ to Q ₅₉ , Q ₆₁ to Q ₆₉ , Q ₇₁ to Q ₇₉ and Q ₈₁ to Q ₈₉ are each independently, independently of each other, hydrogen; heavy hydrogen; -F; -Cl; -Br; -I; hydroxyl group; cyano group; nitro group; amidino group; hydrazine group; hydrazone group; a carboxylic acid group or a salt thereof; a sulfonic acid group or a salt thereof; a phosphoric acid group or a salt thereof; a C ₁ -C ₆₀ alkyl group unsubstituted or substituted with deuterium, a C ₁ -C ₆₀ alkyl group, a C ₆ -C ₆₀ aryl group, or any combination thereof; C ₂ -C ₆₀ alkenyl group; C ₂ -C ₆₀ alkynyl group; C ₁ -C ₆₀ alkoxy group; C ₃ -C ₁₀ cycloalkyl group; C ₁ -C ₁₀ heterocycloalkyl group; C ₃ -C ₁₀ cycloalkenyl group; C ₁ -C ₁₀ heterocycloalkenyl group; a C ₆ -C ₆₀ aryl group unsubstituted or substituted with deuterium, a C ₁ -C ₆₀ alkyl group, a C ₆ -C ₆₀ aryl group, or any combination thereof; C ₆ -C ₆₀ aryloxy group; C ₆ -C ₆₀ arylthio group; C ₁ -C ₆₀ heteroaryl group; monovalent non-aromatic condensed polycyclic group; or a monovalent non-aromatic condensed heteropolycyclic group;

For example, W ₂₁₁ is a substituted or unsubstituted π electron deficient nitrogen-free cyclic group;

D ₂₁₁ is -F, a cyano group, a π-electron deficient nitrogen-containing cyclic group;

a C ₁ -C ₆₀ alkyl group, a π electron deficient nitrogen-containing cyclic group and a π electron deficient nitrogen-free cyclic group substituted with at least one selected from -F and a cyano group; and

deuterium, a C ₁ -C ₆₀ alkyl group, a π electron deficient nitrogen-containing cyclic group and a π electron deficient nitrogen-free cyclic group; a π-electron deficient nitrogen-containing cyclic group substituted with at least one selected from; is selected from;

The π electron deficient nitrogen-free cyclic group is a benzene group, a heptalene group, an indene group, a naphthalene group, an azulene group, an indacene group, an acenaphthylene group, a fluorene group, a spiro-bifluorene group , benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group, perylene group group, pentacene group, hexacene group, pentacene group, rubycene group, corogen group, ovalene group, pyrrole group, isoindole group, indole group, furan group, thiophene group, benzofuran group, benzothiophene group, benzocarbazole group, dibenzocarbazole group, dibenzofuran group, dibenzothiophene group, dibenzothiophene sulfone group, carbazole group, dibenzosilol group, indenocarbazole group, an indolocarbazole group, a benzofurocarbazole group, a benzothienocarbazole group and a triindolobenzene group; and a condensed ring of two or more of the π-electron deficient nitrogen-free cyclic groups; is selected from;

The π-electron deficient nitrogen-containing cyclic group is a cyclic group having at least one *-N=*' moiety, for example, an imidazole group, a pyrazole group, a thiazole group, an isothiazole group, and an oxa group. azole group, isoxazole group, pyridine group, pyrazine group, pyridazine group, pyrimidine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group , quinoxaline group, quinazoline group, cinoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, isobenzothiazole group, benzoxazole group, isobenzo Oxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyrimidine group, azacarbazole group, and benzimidazolobenzimi dazole; and a condensed ring of two or more of the π electron deficient nitrogen-containing cyclic groups; can be selected from

For a detailed description of the first compound, refer to the description of the sensor to be described later.

the second compound in the composition

The second compound includes a compound represented by the following formula (1):

<Formula 1>

In Formula 1, Ring A ₁ is a condensed cyclic group in which three or more cyclic groups are condensed with each other, and the cyclic group is a C ₅ -C ₃₀ carbocyclic group or a C ₁ -C ₃₀ heterocyclic group.

According to one embodiment, in Formula 1, Ring A ₁ is an anthracene group, a phenalene group, a phenanthrene group, a tetracene group, a pyrene group, a chrysene group, a triphenylene group, a pentacene group, and a phenanthene group. Perylene group, fluoranthene group, fluorene group, acridine group, phenanthridine group, phenazine group, phenoxazine group, phenothiazine group, xanthene group, carbazole group, dibenzofuran ( dibenzofuran) group and dibenzothiophene group.

For example, the ring A ₁ may be selected from an anthracene group, a pyrene group, a chrysene group, and a perylene group.

In Formula 1, L ₁ is a single bond, a C ₅ -C ₃₀ carbocyclic group unsubstituted or substituted with at least one R _10a , or C ₁ -C ₃₀ heterocyclic group unsubstituted or substituted with at least one R _10a Click group.

According to one embodiment, L ₁ in Formula 1 is a benzene group, a heptalene group, an indene group, a naphthalene group, an azulene group, a heptalene group, an indacene group, substituted or unsubstituted with at least one R _10a , Acenaphthylene group, fluorene group, spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pi Lene group, chrysene group, naphthacene group, pisene group, perylene group, pentacene group, hexacene group, pentaphen group, rubycene group, coronene group, ovalene group, pyrrole group, furan group, thiophene group, isoindole group, indole group, indene group, benzofuran group, benzothiophene group, benzosilol group, naphthopyrrole group, naphthofuran group, naphthothiophene group, naphthosilol group, benzocarbazole group, Dibenzocarbazole group, dibenzofuran group, dibenzothiophene group, dibenzothiophene sulfone group, carbazole group, dibenzosilol group, indenocarbazole group, indolocarbazole group, benzo Purocarbazole group, benzothienocarbazole group, benzosilolocarbazole group, triindolobenzene group, acridine group, dihydroacridine group, imidazole group, pyrazole group, thiazole group, isothiazole group, oxazole group, isoxazole group, pyridine group, pyrazine group, pyridazine group, pyrimidine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, benzoisoquinoline group, Phthalazine group, naphthyridine group, quinoxaline group, benzoquinoxaline group, quinazoline group, cinoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzoimidazole group, Isobenzothiazole group, benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyrimidine group , azacarbazole group, azadibenzofuran group, azadibenzothiophene group , azadibenzosilol group, benzonaphthofuran group, benzonaphthothiophene group, (indolo)phenanthrene group, (benzofurano)phenanthrene group or (benzothieno)phenanthrene group.

In Formula 1, a1 is an integer of 1 to 5, and when a1 is 2 or more, two or more L ₁ may be the same as or different from each other.

In Formula 1, R ₁ is a group represented by Formula 2 or Formula 3 below:

<Formula 2> <Formula 3>

In Formula 1, b1 is an integer of 3 to 10. For example, b1 may be an integer of 3 to 8. For example, b1 may be an integer of 3 to 6.

When b1 is two or more, two or more R ₁ may be the same as or different from each other.

In Formulas 2 and 3, Ring A ₃ and Ring A ₄ are each independently a C ₅ -C ₃₀ carbocyclic group or a C ₁ -C ₃₀ heterocyclic group.

According to one embodiment, the ring A ₃ and the ring A ₄ are each independently of the other, a benzene group, a heptalene group, an indene group, a naphthalene group, an azulene group, a heptalene group, an indacene group, an acenaphthylene group, flu Orene group, spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group , naphthacene group, picene group, perylene group, pentacene group, hexacene group, pentaphen group, rubycene group, coronene group, ovalene group, pyrrole group, furan group, thiophene group, isoindole group, Indole group, indene group, benzofuran group, benzothiophene group, benzosilol group, naphthopyrrole group, naphthofuran group, naphthothiophene group, naphthosilol group, benzocarbazole group, dibenzocarbazole group, Dibenzofuran group, dibenzothiophene group, dibenzothiophene sulfone group, carbazole group, dibenzosilol group, indenocarbazole group, indolocarbazole group, benzofurocarbazole group, Benzothienocarbazole group, benzosilolocarbazole group, triindolobenzene group, acridine group, dihydroacridine group, imidazole group, pyrazole group, thiazole group, isothiazole group, oxa group azole group, isoxazole group, pyridine group, pyrazine group, pyridazine group, pyrimidine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, benzoisoquinoline group, phthalazine group, naphthi Ridine group, quinoxaline group, benzoquinoxaline group, quinazoline group, cinoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzoimidazole group, isobenzothiazole group, Benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyrimidine group, azacarbazole group, azadibenzofuran group, azadibenzothiophene group, azadibenzosilol group, benzonaphthofuran group, benzonaphthothiophene group, (indolo)phenanthrene group, (benzofurano)phenanthrene group or (benzothieno)phenanthrene group.

For example, the ring A ₃ and the ring A ₄ may each independently represent a benzene group, a naphthalene group, an anthracene group, a phenanthrene group, a triphenylene group, a fluorene group, a dibenzosilol group, a carbazole group, and a dibenzo group. It may be a furan group or a dibenzothiophene group.

In Formulas 2 and 3, T ₃ and T ₄ are each independently a group represented by *-C(R ₅ )(R ₆ )(R ₇ ) or *-Si(R ₅ )(R ₆ )(R ₇ ) and c3 and c4 are each independently an integer of 0 to 10, when c3 is 2 or more, two or more T ₃ are the same or different from each other, and when c4 is 2 or more, two or more T ₄ are the same or different from each other do.

According to one embodiment, in Formulas 2 and 3, the sum of c3 and c4 may be 1 or more.

For example, in Formulas 2 and 3, the sum of c3 and c4 may be 1 to 4.

In Formula 3, T ₁₁ is a single bond, O, S, N(R ₈ ), C(R ₈ )(R ₉ ), or Si(R ₈ )(R ₉ ). For example, T ₁₁ may be a single bond.

In Formulas 1 to 3, R ₂ to R ₉ and R _10a are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , a hydroxyl group, a cyano group, a nitro group, or an amino group , amidino group, hydrazine group, hydrazone group, carboxylic acid group or salt thereof, sulfonic acid group or salt thereof, phosphoric acid group or salt thereof, substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or an unsubstituted C ₆ -C ₆₀ aryloxy group, a substituted or unsubstituted C ₆ -C ₆₀ arylthio group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent non- Condensed aromatic polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₁ )(Q ₂ ), -Si(Q ₃ )(Q ₄ )(Q ₅ ), -Ge(Q) ₃ )(Q ₄ )(Q ₅ ), -B(Q ₆ )(Q ₇ ), -P(=O)(Q ₈ )(Q ₉ ) or -P(Q ₈ )(Q ₉ ),

In Formulas 1 to 3, b2 to b4 are each independently 0 to 10, when b2 is 2 or more, two or more R ₂ are the same or different, and when b3 is 2 or more, two or more R ₃ are the same or different, and when b4 is 2 or more, 2 or more R ₄ are the same as or different from each other.

In Formulas 1 to 3, R ₂ to R ₉ and R _10a are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , a hydroxyl group, a cyano group, a nitro group, or an amino group , amidino group, hydrazine group, hydrazone group, carboxylic acid group or salt thereof, sulfonic acid group or salt thereof, phosphoric acid group or salt thereof, substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or an unsubstituted C ₆ -C ₆₀ aryloxy group, a substituted or unsubstituted C ₆ -C ₆₀ arylthio group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent non- Condensed aromatic polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₁ )(Q ₂ ), -Si(Q ₃ )(Q ₄ )(Q ₅ ), -Ge(Q) ₃ )(Q ₄ )(Q ₅ ), -B(Q ₆ )(Q ₇ ), -P(=O)(Q ₈ )(Q ₉ ) or -P(Q ₈ )(Q ₉ ),

In Formulas 1 to 3, b2 to b4 are each independently 0 to 10, when b2 is 2 or more, two or more R ₂ are the same or different, and when b3 is 2 or more, two or more R ₃ are the same or different, and when b4 is 2 or more, 2 or more R ₄ are the same as or different from each other.

According to one embodiment, in Formulas 2 and 3, R ₅ to R ₇ may be each independently selected from -CH ₃ , -CD ₃ , -CD ₂ H, -CDH ₂ , a phenyl group, and Formulas 9-1 to 9- 19 can be selected from the group indicated:

In Formulas 9-1 to 9-19, * is a binding site with an adjacent atom.

According to one embodiment, the compound represented by Formula 1 may be represented by one selected from the following Formulas 1-1 to 1-4:

<Formula 1-1>

<Formula 1-2>

<Formula 1-3> <Formula 1-4>

In Formulas 1-1 to 1-4,

R ₁₁ to R ₂₂ are each independently, *-(L ₁ ) _a1 -R _{1 A} group represented by a group, hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , a hydroxyl group, a cyano group , a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted a C ₂ -C ₆₀ alkenyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, a substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₁ )(Q ₂ ), -Si(Q ₃ )(Q ₄ )(Q ₅ ) , -Ge(Q ₃ )(Q ₄ )(Q ₅ ), -B(Q ₆ )(Q ₇ ), -P(=O)(Q ₈ )(Q ₉ ) or -P(Q ₈ )(Q ₉ ) and

In Formulas 1-1 and 1-4, at least three of R ₁₁ to R ₂₀ are the groups represented by *-(L ₁ ) _a1 -R ₁ ,

In Formulas 1-2 and 1-3, at least three of R ₁₁ to R ₂₂ are a group represented by the *-(L ₁ ) _a1 -R ₁ ,

said substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, Substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group and substituted monovalent non-aromatic condensed polycyclic group For the description of the substituents, refer to the above bar.

For example, i) in Formula 1-1, at least three of R ₁₁ , R ₁₃ , R ₁₆ and R ₁₈ are a group represented by *-(L ₁ ) _a1 -R ₁ ;

ii) in Formula 1-2, at least three of R ₁₂ , R ₁₅ , R ₁₈ and R ₂₁ are a group represented by *-(L ₁ ) _a1 -R ₁ ;

iii) In Formula 1-3, at least three of R ₁₃ , R ₁₆ , R ₁₉ and R ₂₂ are a group represented by *-(L ₁ ) _a1 -R ₁ ;

iv) In Formula 1-4, at least three of R ₁₂ , R ₁₅ , R ₁₇ , and R ₂₀ may be a group represented by *-(L ₁ ) _a1 -R ₁ .

According to one embodiment, R ₁ in Formula 1 may be selected from the group represented by Formulas 2-1 to 2-42 and 3-1 to 3-36:

In Formulas 2-1 to 2-42 and 3-1 to 3-36,

For the description of T ₃ , T ₄ , T ₁₁ , R ₃ and R ₄ , refer to the above bar, respectively,

b32 and b42 are each independently selected from an integer of 0 to 2,

b33 and b43 are each independently selected from an integer of 0 to 3,

b34 and b44 are each independently selected from an integer of 0 to 4,

b35 and b45 are each independently selected from an integer of 0 to 5;

* is a binding site with a neighboring atom.

According to one embodiment, the second compound may be any one selected from the following compounds FD1 to FD12:

.

.

The second compound may emit blue light by having a condensed ring core in which three or more cyclic groups are condensed with each other.

By including three or more R ₁ groups, the second compound secures the maximum spacing between the light emitting part of the sensor and the light emitting part of the dopant, thereby exhibiting dexter energy transfer.

The second compound optionally includes one or more t-butyl substituents or TMS substituents, thereby securing the maximum spacing between the light emitting part of the sensorizer and the light emitting part of the dopant, thereby achieving dexter energy transfer. can perform

For a detailed description of the second compound, refer to the description of the dopant to be described later.

the third compound in the composition

The third compound includes an amphoteric compound, an electron transporting compound and/or a hole transporting compound,

the electron-transporting compound comprises at least one electron-transporting moiety,

The hole-transporting compound does not include an electron-transporting moiety,

The electron transporting moiety may be selected from a cyano group, a π electron deficient nitrogen-containing cyclic group and a group represented by one of the following formulas:

In the above formula, *, *', and *" each represent a binding site with an arbitrary neighboring atom.

According to one embodiment, the electron transporting compound comprises at least one π electron deficient nitrogen-free cyclic group and at least one electron transporting moiety,

wherein the hole transport compound comprises at least one π electron deficient nitrogen-free cyclic group and is free of electron transport moieties;

The electron-transporting moiety may be a cyano group or a π-electron deficient nitrogen-containing cyclic group.

For example, the π-electron deficient nitrogen-containing cyclic group includes an imidazole group, a pyrazole group, a thiazole group, an isothiazole group, an oxazole group, an isoxazole group, a pyridine group, a pyrazine group, and a pyridazine group. , pyrimidine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cinoline group, phenanthridine Group, acridine group, phenanthroline group, phenazine group, benzoimidazole group, isobenzothiazole group, benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, oxadiazole group , a triazine group, a thiadiazole group, an imidazopyridine group, an imidazopyrimidine group and an azacarbazole group; and two or more π-electron deficient nitrogen-containing cyclic groups selected from condensed rings,

The π-electron deficient nitrogen-free cyclic group includes a benzene group, a heptalene group, an indene group, a naphthalene group, an azulene group, an indacene group, an acenaphthylene group, a fluorene group, and a spiro-bifluorene group. Group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group, phen rylene group, pentacene group, hexacene group, pentacene group, rubycene group, corogen group, ovalene group, pyrrole group, isoindole group, indole group, furan group, thiophene group, benzofuran group, benzothi Opene group, benzocarbazole group, dibenzocarbazole group, dibenzofuran group, dibenzothiophene group, dibenzothiophene sulfone group, carbazole group, dibenzosilol group, indenocarbazole group , indolocarbazole group, benzofurocarbazole group, benzothienocarbazole group and triindolobenzene group; and condensed rings of two or more of the π-electron deficient nitrogen-free cyclic groups.

For example, the electron-transporting compound comprises i) at least one of a cyano group, a pyrimidine group, a pyrazine group, and a triazine group, and ii) a triphenylene group,

The hole transporting compound may include a carbazole group.

For a detailed description of the third compound, refer to the description of the host to be described later.

Description of Figure 1

1 is a schematic cross-sectional view of an organic light emitting device 10 according to an embodiment of the present invention. Hereinafter, a structure and a method of manufacturing an organic light emitting device according to an embodiment of the present invention will be described with reference to FIG. 1 .

The organic light emitting diode 10 of FIG. 1 includes a first electrode 11 ; a second electrode 19; and an organic layer (10A) disposed between the first electrode (11) and the second electrode (19) and including a light emitting layer (15), wherein the organic layer (10A) includes the above-described composition.

According to one embodiment, the composition may be included in the light emitting layer 15 .

According to one embodiment, the light emitting layer 15 includes a sensor, a dopant, and a host, the sensor includes a first compound in the composition, the dopant includes a second compound in the composition, , the host may include at least one third compound of the composition.

According to one embodiment, the light emitting layer 15 may emit blue light.

According to an exemplary embodiment, the organic layer 10A includes a hole transport region 12 disposed between the first electrode 11 and the emission layer 15 , the emission layer 15 and the second electrode 19 . It may further include an electron transport region 17 disposed therebetween.

A substrate may be additionally disposed below the first electrode 11 or above the second electrode 19 . As the substrate, a substrate used in a conventional organic light emitting device may be used, and a glass substrate or a transparent plastic substrate excellent in mechanical strength, thermal stability, transparency, surface smoothness, handling easiness and waterproofness may be used.

[First electrode 11]

The first electrode 11 may be formed by, for example, providing a material for the first electrode on a substrate using a deposition method or a sputtering method. The first electrode 11 may be an anode. The material for the first electrode may be selected from materials having a high work function to facilitate hole injection.

The first electrode 11 may be a reflective electrode, a transflective electrode, or a transmissive electrode. In order to form the first electrode 11 which is a transmissive electrode, the material for the first electrode is indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO ₂ ), zinc oxide (ZnO), and any thereof. It may be selected from a combination of, but is not limited thereto. Alternatively, in order to form the first electrode 110 that is a transflective electrode or a reflective electrode, the material for the first electrode is magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li). ), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), and any combination thereof, but is not limited thereto.

The first electrode 11 may have a single layer or a multilayer structure including two or more layers.

[Light emitting layer (15)]

The emission layer 15 includes a host, a dopant, and a sensor.

The light emitting layer 15 emits fluorescence. That is, the dopant is a material capable of emitting fluorescence. The light emitting layer 15 emitting the fluorescence is clearly distinguished from the light emitting layer emitting normal phosphorescence.

In general, triplet excitons are known to affect the reduction in lifetime of organic light emitting diodes because they stay in an excited state for a long time. However, in the present invention, since the dopant is used, the lifetime of the organic light emitting device including the same can be improved by reducing the retention time of the triplet exciton of the sensory.

Specifically, as the number of triplet excitons of the sensor increases, extra energy is accumulated in the sensor, so that more hot excitons are generated. That is, the amount of triplet excitons of the sensory and the amount of high-temperature excitons are proportional to each other. The high-temperature exciton breaks various chemical bonds of the compound included in the light emitting layer 15 and/or the compound present at the interface of the light emitting layer 15, thereby decomposing the compound. Accordingly, the lifespan of the organic light emitting device may be reduced. However, in the present invention, by using a dopant, since triplet excitons of the sensor can be rapidly converted into singlet excitons of the dopant, the amount of high-temperature excitons can ultimately be reduced, and the lifetime of the organic light-emitting device can be reduced. can improve

Here, "high-temperature exciton" refers to exciton-exciton annihilation due to an increase in the density of excitons in the light-emitting layer 15, exciton-charge annihilation due to charge imbalance in the light-emitting layer 15, and / or may be generated due to radical ion pairing according to electron transfer between the host-dopant and may increase.

In addition, since the dopant emits fluorescence, an organic light emitting device with high color purity can be provided. The accumulation of singlet excitons can be prevented, and the lifespan of the organic light emitting diode can be improved.

More specifically, singlet and triplet excitons are formed in the host in the light emitting layer 15, and the singlet and triplet excitons formed in the host are transferred to the sensor, and then Fㆆrster energy transfer (FRET) is performed again. through the dopant. In this case, in order to secure high efficiency and long lifespan of the organic light emitting diode, it is necessary to control high-temperature excitons generated in the light emitting layer 15 , and for this purpose, energy transfer optimization is required.

More specifically, when the sensor is a thermally activated delayed fluorescence (TADF) emitter with ΔE _ST ≤ 0.4 eV, a 25% proportion of singlet excitons formed in the host are transferred to the sensor through F rster energy transfer, 75% of the triplet exciton energy formed in the host is transferred to the singlet and triplet of the sensor, and the energy transferred to the triplet is crossed inversely to the singlet, and then the singlet energy of the sensor is transferred to the dopant through the Fㆆrster energy transfer.

More specifically, when the sensor is an organometallic compound including one or more metals selected from 1st-period transition metal, 2nd-period transition metal, and 3rd-period transition metal, 75% of triplet excitons formed in the host are Dexter energy transfer The energy of singlet excitons at a rate of 25% that is transferred to the sensor through Then, the triplet energy of the sensor is transferred to the dopant through Fㆆrster energy transfer.

Accordingly, by transferring both singlet excitons and triplet excitons generated in the emission layer 15 to the dopant, an organic light emitting diode having improved efficiency may be obtained. In addition, since it is possible to obtain an organic light emitting device with significantly reduced energy loss, lifespan characteristics of the organic light emitting device may be improved.

The content of the sensor in the light emitting layer 15 may be selected within a range of 5 wt% to 50 wt%. When the above-described range is satisfied, effective energy transfer in the light emitting layer 15 can be achieved, and thus, an organic light emitting device with high efficiency and long life can be realized.

The emission layer 15 may consist of the host, the dopant, and the sensor. That is, the emission layer 15 does not further include a material other than the host, the dopant, and the sensor.

The light emitting layer 15 may have a thickness of about 100 Å to about 1000 Å, for example, about 200 Å to about 600 Å. When the thickness of the light emitting layer 15 satisfies the above-described range, excellent light emitting characteristics may be exhibited without a substantial increase in driving voltage.

[Host in the light emitting layer 15]

The host may include at least one third compound.

The host may not include a metal atom.

According to an embodiment, the host may consist of one type of host. When the host consists of one kind of host, the one kind of host may be selected from an amphoteric host, an electron transporting host, and a hole transporting host, which will be described later.

According to another embodiment, the host may be a mixture of two or more different hosts. For example, the host may be a mixture of an electron transporting host and a hole transporting host, a mixture of two different electron transporting hosts, or a mixture of two different hole transporting hosts. The description of the electron-transporting host and the hole-transporting host will be described later.

According to another embodiment, the host may include an electron-transporting host including at least one electron-transporting moiety and a hole-transporting host not including an electron-transporting moiety.

In the present specification, the electron transporting moiety may be selected from a cyano group, a π electron deficient nitrogen-containing cyclic group, and a group represented by one of the following formulas:

In the above formula, *, *', and *" each represent a binding site with an arbitrary neighboring atom.

According to an embodiment, the electron-transporting host in the emission layer 15 may include at least one of a cyano group and a π-electron deficient nitrogen-containing cyclic group.

According to another embodiment, the electron transporting host in the emission layer 15 may include at least one cyano group.

According to another embodiment, the electron-transporting host in the emission layer 15 may include at least one cyano group and at least one π-electron deficient nitrogen-containing cyclic group.

According to another embodiment, the host comprises an electron transporting host and a hole transporting host, the electron transporting host comprising at least one π electron deficient nitrogen-free cyclic group and at least one electron transporting moiety, , the hole-transporting host may include at least one π-electron deficient nitrogen-free cyclic group, and may not include an electron-transporting moiety.

According to another embodiment, the electron-transporting host is selected from the compounds represented by the following formula E-1,

The hole transporting host may be selected from compounds represented by the following formula (H-1), but is not limited thereto:

<Formula E-1>

[Ar ₃₀₁ ] _xb11 -[(L ₃₀₁ ) _xb1 -R ₃₀₁ ] _xb21

In Formula E-1,

Ar ₃₀₁ is selected from a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group and a substituted or unsubstituted C ₁ -C ₆₀ heterocyclic group,

xb11 is 1, 2 or 3,

L ₃₀₁ are each independently selected from a single bond, a group represented by one of the following formulas, a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group, and a substituted or unsubstituted C ₁ -C ₆₀ heterocyclic group, In the above formula, *, *' and *" each represent a binding site with an arbitrary neighboring atom,

xb1 is selected from an integer of 1 to 5,

R ₃₀₁ is hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, substituted or unsubstituted C ₁ - C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ Heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ₃₀₁ )(Q ₃₀₂ )(Q ₃₀₃ ), -N (Q ₃₀₁ )(Q ₃₀₂ ), -B(Q ₃₀₁ )(Q ₃₀₂ ), -C(=O)(Q ₃₀₁ ), -S(=O) ₂ (Q ₃₀₁ ), -S(=O)( Q ₃₀₁ ), -P(=O)(Q ₃₀₁ )(Q ₃₀₂ ) and -P(=S)(Q ₃₀₁ )(Q ₃₀₂ ),

xb21 is selected from an integer of 1 to 5,

Q ₃₀₁ to Q ₃₀₃ are each independently selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group and a naphthyl group,

At least one of the following <Condition A> to <Condition C> is satisfied:

<Condition A>

At least one of Ar ₃₀₁ , L ₃₀₁ , and R ₃₀₁ of Formula E-1 may independently include a π-electron deficient nitrogen-containing cyclic group

<Condition B>

L ₃₀₁ of Formula E-1 is a group represented by one of the following formulas

<Condition C>

R ₃₀₁ of Formula E-1 is a cyano group, -S(=O) ₂ (Q ₃₀₁ ), -S(=O)(Q ₃₀₁ ), -P(=O)(Q ₃₀₁ )(Q ₃₀₂ ) and -P(=S)(Q ₃₀₁ )(Q ₃₀₂ )

<Formula H-1>

Ar ₄₀₁ -(L ₄₀₁ ) _xd1 -(Ar ₄₀₂ ) _xd11

In Formulas H-1, 11 and 12,

L ₄₀₁ silver,

single bond; and

Deuterium, C ₁ -C ₁₀ alkyl group, C ₁ -C ₁₀ alkoxy group, phenyl group, naphthyl group, fluorenyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, triphenylenyl group, biphenyl group, terphenyl group , tetraphenyl group and -Si (Q ₄₀₁ ) (Q ₄₀₂ ) (Q ₄₀₃ ) substituted or unsubstituted with at least one selected from a benzene group, a heptalene group, an indene group, a naphthalene group, an azulene group, an indacene group, an ace Naphthylene group, fluorene group, spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, pison group, perylene group, pentacene group, hexacene group, pentacene group, rubycene group, corogen group, ovalene group, pyrrole group, isoindole group, indole group , furan group, thiophene group, benzofuran group, benzothiophene group, benzocarbazole group, dibenzocarbazole group, dibenzofuran group, dibenzothiophene group, dibenzothiophene sulfone group, a carbazole group, a dibenzosilol group, an indenocarbazole group, an indolocarbazole group, a benzofurocarbazole group, a benzothienocarbazole group and a triindolobenzene group;

is selected from

xd1 is selected from an integer of 1 to 10, and when xd1 is 2 or more, two or more L ₄₀₁ are the same as or different from each other,

Ar ₄₀₁ is selected from the group represented by Formulas 11 and 12,

Ar ₄₀₂ is a group represented by Formulas 11 and 12, a phenyl group, a naphthyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a biphenyl group, a terphenyl group and a triphenylenyl group; and

Deuterium, a hydroxyl group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C ₁ -C ₂₀ alkyl group, a C ₁ -C ₂₀ alkoxy group , a phenyl group, a naphthyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a phenyl group, a naphthyl group, a fluorenyl group, substituted with at least one selected from a dibenzothiophenyl group, a biphenyl group, a terphenyl group and a triphenylenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a biphenyl group, a terphenyl group and a triphenylenyl group;

is selected from

CY ₄₀₁ and CY ₄₀₂ are, independently of each other, a benzene group, a naphthalene group, a fluorene group, a carbazole group, a benzocarbazole group, an indolocarbazole group, a dibenzofuran group, a dibenzothiophene group, a dibenzosilol group , a benzonaphthofuran group, a benzonaphthothiophene group, is selected from a benzonaphthosilol group,

A ₂₁ is selected from a single bond, O, S, N(R ₅₁ ), C(R ₅₁ )(R ₅₂ ) and Si(R ₅₁ )(R ₅₂ ),

A ₂₂ is selected from a single bond, O, S, N(R ₅₃ ), C(R ₅₃ )(R ₅₄ ) and Si(R ₅₃ )(R ₅₄ ),

At least one of A ₂₁ and A ₂₂ of Formula 12 is not a single bond,

R ₅₁ to R ₅₄ , R ₆₀ and R ₇₀ are each independently,

Hydrogen, deuterium, a hydroxyl group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C ₁ -C ₂₀ alkyl group and a C ₁ -C ₂₀ alkoxy group;

Deuterium, a hydroxyl group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a phenyl group, a naphthyl group, a fluorenyl group, a carbazolyl group, a di a C ₁ -C ₂₀ alkyl group and a C ₁ -C ₂₀ alkoxy group substituted with at least one selected from a benzofuranyl group and a dibenzothiophenyl group;

π electron deficient nitrogen-free cyclic group (eg, phenyl group, naphthyl group, fluorenyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, biphenyl group, terphenyl group and triphenylenyl group) ;

Deuterium, a hydroxyl group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C ₁ -C ₂₀ alkyl group, a C ₁ -C ₂₀ alkoxy group , a phenyl group, a naphthyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a π electron deficient nitrogen-free cyclic group substituted with at least one selected from a dibenzothiophenyl group and a biphenyl group (eg, a phenyl group) , naphthyl group, fluorenyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, biphenyl group, terphenyl group and triphenylenyl group); and

-Si(Q ₄₀₄ )(Q ₄₀₅ )(Q ₄₀₆ );

is selected from

e1 and e2 are each independently an integer selected from 0 to 10;

The Q ₄₀₁ to Q ₄₀₆ are each independently hydrogen, deuterium, a hydroxyl group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a phenyl group , is selected from a naphthyl group, a fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a biphenyl group, a terphenyl group and a triphenylenyl group,

* is a binding site with a neighboring atom.

According to an embodiment, in Formula E-1, Ar ₃₀₁ and L ₃₀₁ may each independently represent deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, and an amidino group , hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, cyano-containing phenyl group, cyano-containing biphenyl group, cyano -Containing terphenyl group, cyano-containing naphthyl group, pyridinyl group, phenylpyridinyl group, diphenylpyridinyl group, biphenylpyridinyl group, di(biphenyl)pyridinyl group, pyrazinyl group, phenylpyrazinyl group , diphenylpyrazinyl group, biphenylpyrazinyl group, di(biphenyl)pyrazinyl group, pyridazinyl group, phenylpyridazinyl group, diphenylpyridazinyl group, biphenylpyridazinyl group, di(bi Phenyl) pyridazinyl group, pyrimidinyl group, phenylpyrimidinyl group, diphenylpyrimidinyl group, biphenylpyrimidinyl group, di(biphenyl)pyrimidinyl group, triazinyl group, phenyltriazinyl group, diphenyltriazinyl group group, biphenyltriazinyl group, di(biphenyl)triazinyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )( Q ₃₂ ), -C(=O)(Q ₃₁ ), -S(=O) ₂ (Q ₃₁ ), and -P(=O)(Q ₃₁ )(Q ₃₂ ) unsubstituted or substituted with at least one selected from , benzene group, naphthalene group, fluorene group, spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group , pyrene group, chrysene group, naphthacene group, picene group, perylene group, pentaphen group, indenoanthracene group, dibenzofuran group, dibenzothiophene group, imidazole group, pyrazole group, thiazole group, isothiazole group, oxazole group, isoxazole group, pyridine group, pyrazine group, pyridazine group, pyrimidine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, Phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cinoline group, Phenanthridine group, acridine group, phenanthroline group, phenazine group, benzoimidazole group, isobenzothiazole group, benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, oxa selected from a diazole group, a triazine group, a thiadiazole group, an imidazopyridine group, an imidazopyrimidine group and an azacarbazole group,

At least one of xb1 L ₃₀₁ is, independently of each other, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, cyano-containing phenyl group, cyano-containing biphenyl group, cyano-containing terphenyl group, cyano-containing naph Tyl group, pyridinyl group, phenylpyridinyl group, diphenylpyridinyl group, biphenylpyridinyl group, di(biphenyl)pyridinyl group, pyrazinyl group, phenylpyrazinyl group, diphenylpyrazinyl group, biphenylpyra Zinyl group, di(biphenyl)pyrazinyl group, pyridazinyl group, phenylpyridazinyl group, diphenylpyridazinyl group, biphenylpyridazinyl group, di(biphenyl)pyridazinyl group, pyrimidinyl group , phenylpyrimidinyl group, diphenylpyrimidinyl group, biphenylpyrimidinyl group, di(biphenyl)pyrimidinyl group, triazinyl group, phenyltriazinyl group, diphenyltriazinyl group, biphenyltriazinyl group, di( Biphenyl) triazinyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O) (Q ₃₁ ), -S(=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ ) unsubstituted or substituted with at least one selected from an imidazole group, a pyrazole group, a thia azole group, isothiazole group, oxazole group, isoxazole group, pyridine group, pyrazine group, pyridazine group, pyrimidine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group , phthalazine group, naphthyridine group, quinoxaline group, quinazoline group, cinoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, isobenzothiazole group, benzoxazole group, isobenzooxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyrimidine group and azacarbazole selected from a group,

R ₃₀₁ is hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ Alkoxy group, phenyl group, biphenyl group, terphenyl group, tetraphenyl group, naphthyl group, cyano-containing phenyl group, cyano-containing biphenyl group, cyano-containing terphenyl group, cyano-containing tetraphenyl group, cyano- Containing naphthyl group, pyridinyl group, phenylpyridinyl group, diphenylpyridinyl group, biphenylpyridinyl group, di(biphenyl)pyridinyl group, pyrazinyl group, phenylpyrazinyl group, diphenylpyrazinyl group, bi Phenylpyrazinyl group, di(biphenyl)pyrazinyl group, pyridazinyl group, phenylpyridazinyl group, diphenylpyridazinyl group, biphenylpyridazinyl group, di(biphenyl)pyridazinyl group, pyri midinyl group, phenylpyrimidinyl group, diphenylpyrimidinyl group, biphenylpyrimidinyl group, di(biphenyl)pyrimidinyl group, triazinyl group, phenyltriazinyl group, diphenyltriazinyl group, biphenyltriazinyl group, Di (biphenyl) triazinyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(= O)(Q ₃₁ ), -S(=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ ),

Q ₃₁ to Q ₃₃ may be each independently selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group, but is not limited thereto.

According to another implementation,

Ar ₃₀₁ is deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ Alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, cyano-containing phenyl group, cyano-containing biphenyl group, cyano-containing terphenyl group, cyano-containing naphthyl group, pyridinyl group, phenylpyri Dinyl group, diphenylpyridinyl group, biphenylpyridinyl group, di(biphenyl)pyridinyl group, pyrazinyl group, phenylpyrazinyl group, diphenylpyrazinyl group, biphenylpyrazinyl group, di(biphenyl) Pyrazinyl group, pyridazinyl group, phenylpyridazinyl group, diphenylpyridazinyl group, biphenylpyridazinyl group, di(biphenyl)pyridazinyl group, pyrimidinyl group, phenylpyrimidinyl group, diphenyl Pyrimidinyl group, biphenylpyrimidinyl group, di(biphenyl)pyrimidinyl group, triazinyl group, phenyltriazinyl group, diphenyltriazinyl group, biphenyltriazinyl group, di(biphenyl)triazinyl group, - Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S( =O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ ) substituted or unsubstituted with at least one selected from a benzene group, a naphthalene group, a fluorene group, and a spiro-bifluorene group , benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group, perylene group group, pentaphene group, indenoanthracene group, dibenzofuran group, dibenzothiophene group; and

a group represented by the following Chemical Formulas 5-1 to 5-3 and Chemical Formulas 6-1 to 6-33;

is selected from

L ₃₀₁ may be selected from the group represented by the following Chemical Formulas 5-1 to 5-3 and Chemical Formulas 6-1 to 6-33:

In Formulas 5-1 to 5-3 and 6-1 to 6-33,

Z ₁ is hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ Alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, cyano-containing phenyl group, cyano-containing biphenyl group, cyano-containing terphenyl group, cyano-containing naphthyl group, pyridinyl group, phenylpyri Dinyl group, diphenylpyridinyl group, biphenylpyridinyl group, di(biphenyl)pyridinyl group, pyrazinyl group, phenylpyrazinyl group, diphenylpyrazinyl group, biphenylpyrazinyl group, di(biphenyl) Pyrazinyl group, pyridazinyl group, phenylpyridazinyl group, diphenylpyridazinyl group, biphenylpyridazinyl group, di(biphenyl)pyridazinyl group, pyrimidinyl group, phenylpyrimidinyl group, diphenyl Pyrimidinyl group, biphenylpyrimidinyl group, di(biphenyl)pyrimidinyl group, triazinyl group, phenyltriazinyl group, diphenyltriazinyl group, biphenyltriazinyl group, di(biphenyl)triazinyl group, - Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -N(Q ₃₁ )(Q ₃₂ ), -B(Q ₃₁ )(Q ₃₂ ), -C(=O)(Q ₃₁ ), -S( =O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ ),

d4 is 0, 1, 2, 3 or 4;

d3 is 0, 1, 2 or 3;

d2 is 0, 1 or 2,

* and *' are binding sites with neighboring atoms, respectively.

For the description of Q ₃₁ to Q ₃₃ , refer to the bar described herein.

According to another embodiment, L ₃₀₁ may be selected from the group represented by Formulas 5-2, 5-3, and 6-8 to 6-33.

According to another embodiment, R ₃₀₁ is selected from a cyano group and a group represented by Formulas 7-1 to 7-18, and at least one of xd11 Ar ₄₀₂ is a group represented by Formulas 7-1 to 7-18 may be selected from, but not limited to:

In Formulas 7-1 to 7-18,

xb41 to xb44 are 0, 1, or 2, wherein xb41 in Formulas 7-10 is not 0, xb41 + xb42 in Formulas 7-11 to 7-13 is not 0, and xb41 + in Formulas 7-14 to 7-16 xb42 + xb43 is not 0, xb41 + xb42 + xb43 + xb44 in Formulas 7-17 and 7-18 is not 0, and * is a binding site with a neighboring atom.

In Formula E-1, two or more Ar ₃₀₁ are the same or different, two or more L ₃₀₁ are the same or different from each other, two or more L ₄₀₁ in Formula H-1 are the same or different, and two or more Ar ₄₀₂ are same or different from each other

According to one embodiment, the electron transport host includes i) at least one of a cyano group, a pyrimidine group, a pyrazine group, and a triazine group, and ii) a triphenylene group, and the hole transport host includes a carbazole group can do.

According to another embodiment, the electron transport host may include at least one cyano group.

The electron transporting host may be, for example, selected from the group HE1 to HE7, but is not limited thereto:

<Group HE1>

<Group HE2>

<Group HE3>

<Group HE4>

<Group HE5>

<Group HE6>

<Group HE7>

As another example, the hole transporting host may be selected from the following compounds H-H1 to H-H104, but is not limited thereto:

As another example, the amphoteric host may be selected from the following group HEH1, but is not limited thereto:

<Group HEH1>

Among the compounds 1 to 432,

Ph is a phenyl group.

When the host is a mixture of the electron-transporting host and the hole-transporting host, the weight ratio of the electron-transporting host and the hole-transporting host is 1: 9 to 9: 1, for example, 2: 8 to 8: 2, as another example. , 4:6 to 6:4, as another example, may be selected from the range of 5:5. When the weight ratio of the electron-transporting host and the hole-transporting host satisfies the above-described range, a balance of hole and electron transport into the light emitting layer 15 may be achieved.

[Dopant in the light emitting layer 15]

The dopant may include the second compound.

Since the dopant emits fluorescence, the organic light emitting device according to an embodiment of the present invention is clearly distinguished from the organic light emitting device including a phosphorescent compound.

In one embodiment, the dopant does not contain a metal atom.

In an embodiment, the dopant may further include a compound selected from a condensed polycyclic compound and a styryl-based compound in addition to the second compound.

For example, the dopant may be a naphthalene-containing core, a fluorene-containing core, a spiro-bifluorene-containing core, a benzofluorene-containing core, a dibenzofluorene-containing core, a phenanthrene-containing core, anthracene-containing core, fluoranthene-containing core, triphenylene-containing core, pyrene-containing core, chrysene-containing core, naphthacene-containing core, picene-containing core, perylene-containing core, pentaphene -containing core, indenoanthracene-containing core, tetracene-containing core, bisanthracene-containing core, and one of the cores represented by the following formulas 501-1 to 501-18, but is not limited thereto:

Alternatively, the dopant may be selected from a styryl-amine-based compound and a styryl-carbazole-based compound, but is not limited thereto.

According to one embodiment, the dopant may be selected from compounds represented by the following Chemical Formula 501:

<Formula 501>

In Formula 501,

Ar ₅₀₁ silver

Naphthalene, fluorene, spiro-bifluorene, benzofluorene, dibenzofluorene, phenanthrene, anthracene, fluoranthene, triphenylene, pyrene, chrysene, naphthacene, picene, perylene, pentaphene , indenoanthracene, tetracene, bisanthracene, and groups represented by Formulas 501-1 to 501-18; and

Deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group Or a salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocyclo Alkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ - C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group and -Si(Q ₅₀₁ )(Q ₅₀₂ )(Q ₅₀₃ ) (wherein Q ₅₀₁ to Q ₅₀₃ are each independently , hydrogen, C ₁ -C ₆₀ alkyl group, C ₁ -C ₆₀ alkoxy group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic hetero substituted with at least one selected from condensed polycyclic rings), naphthalene, fluorene, spiro-bifluorene, benzofluorene, dibenzofluorene, phenanthrene, anthracene, fluoranthene, triphenylene, pyrene, cryene cene, naphthacene, picene, perylene, pentaphene indenoanthracene, tetracene, bisanthracene, and groups represented by Formulas 501-1 to 501-18;

is selected from

L ₅₀₁ to L ₅₀₃ are each independently, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkylene group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkylene group, a substituted or unsubstituted C ₃ -C ₁₀ cyclo Alkenylene group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenylene group, substituted or unsubstituted C ₆ -C ₆₀ arylene group, substituted or unsubstituted C ₁ -C ₆₀ heteroarylene group, substituted or unsubstituted It is selected from a cyclic divalent non-aromatic condensed polycyclic group and a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group,

R ₅₀₁ and R ₅₀₂ are independently of each other,

Phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, Pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazole group, triazinyl group, dibenzofuranyl group and dibenzothiophenyl group ; and

Deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group Or a salt thereof, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzoflu Orenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quina A phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group substituted with at least one selected from a zolinyl group, a carbazolyl group, a triazinyl group, a dibenzofuranyl group and a dibenzothiophenyl group, Benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinyl group a nolinyl group, a quinoxalinyl group, a quinazolinyl group, a carbazolyl group, a triazinyl group, a dibenzofuranyl group and a dibenzothiophenyl group;

is selected from

xd1 to xd3 are each independently selected from 0, 1, 2 and 3,

xd4 is selected from 0, 1, 2, 3, 4, 5 and 6.

For example, in Formula 501,

Ar ₅₀₁ silver

Naphthalene, fluorene, spiro-bifluorene, benzofluorene, dibenzofluorene, phenanthrene, anthracene, fluoranthene, triphenylene, pyrene, chrysene, naphthacene, picene, perylene, pentaphene , indenoanthracene, tetracene, bisanthracene, and groups represented by Formulas 501-1 to 501-18; and

Deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group Or a salt thereof, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, dibenzofuranyl group, dibenzothiophenyl group, carbazolyl group, pyridi Nyl group, pyrimidinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, and -Si(Q ₅₀₁ ) (Q ₅₀₂ ) (Q ₅₀₃ ) (The Q ₅₀₁ to Q ₅₀₃ are independently of each other, hydrogen, C ₁ - C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group and naphthyl group) substituted with at least one selected from), naphthalene, fluorene, spiro-bifluorene, benzofluorene, dibenzo fluorene, phenanthrene, anthracene, fluoranthene, triphenylene, pyrene, chrysene, naphthacene, picene, perylene, pentaphen, indenoanthracene, tetracene, bisanthracene, and Formulas 501-1 to 501 group represented by -18;

is selected from

For a description of L ₅₀₁ to L ₅₀₃ , refer to the description of L ₂₁ in the present specification,

xd1 to xd3 are each independently selected from 0, 1 and 2,

xd4 may be selected from 0, 1, 2, and 3, but is not limited thereto.

Alternatively, the dopant may include a compound represented by one of the following Chemical Formulas 502-1 to 502-5:

<Formula 502-1>

<Formula 502-2>

<Formula 502-3>

<Formula 502-4>

<Formula 502-5>

In Formulas 502-1 to 502-5,

X ₅₁ is N or C-[(L ₅₀₁ ) _xd1 -R ₅₀₁ ], X ₅₂ is N or C-[(L ₅₀₂ ) _xd2 -R ₅₀₂ ], and X ₅₃ is N or C-[(L ₅₀₃ ) _xd3- R ₅₀₃ ], X ₅₄ is N or C-[(L ₅₀₄ ) _xd4 -R ₅₀₄ ], X ₅₅ is N or C-[(L ₅₀₅ ) _xd5 -R ₅₀₅ ], and X ₅₆ is N or C-[(L ₅₀₆ ) _xd6 -R ₅₀₆ ], X ₅₇ is N or C-[(L ₅₀₇ ) _xd7 -R ₅₀₇ ], X ₅₈ is N or C-[(L ₅₀₈ ) _xd8 -R ₅₀₈ ] ego,

For the description of L ₅₀₁ to L ₅₀₈ , refer to the description of L ₅₀₁ in Formula 501, respectively,

For the description of xd1 to xd8, refer to the description of xd1 in Formula 501, respectively,

R ₅₀₁ to R ₅₀₈ are each independently,

Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof , a phosphoric acid group or a salt thereof, a C ₁ -C ₂₀ alkyl group, a C ₁ -C ₂₀ alkoxy group,

Phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, Pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazole group, triazinyl group, dibenzofuranyl group and dibenzothiophenyl group ; and

Deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group Or a salt thereof, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzoflu Orenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quina A phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group substituted with at least one selected from a zolinyl group, a carbazolyl group, a triazinyl group, a dibenzofuranyl group and a dibenzothiophenyl group, Benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, pyrenyl group, chrysenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, quinolinyl group, isoquinyl group a nolinyl group, a quinoxalinyl group, a quinazolinyl group, a carbazolyl group, a triazinyl group, a dibenzofuranyl group and a dibenzothiophenyl group;

is selected from

xd11 and xd12 are each independently selected from an integer of 0 to 5,

two of R ₅₀₁ to R ₅₀₄ may optionally be combined with each other to form a saturated or unsaturated ring,

Two of R ₅₀₅ to R ₅₀₈ may optionally be combined with each other to form a saturated or unsaturated ring.

The dopant may include, for example, at least one compound selected from the following compounds FD(1) to FD(16) and FD1 to FD18:

The content of the dopant in the emission layer may be selected from 0.01 wt% to 15 wt%, but is not limited thereto.

[Sensor in the light emitting layer 15]

The sensor may include the first compound.

In one embodiment, the sensor may be selected from the following groups I to VI, but is not limited thereto:

<Group I>

<Group II>

<Group III>

<Group IV>

<Group V>

A compound represented by the following formula (A):

<Formula A>

(L ₁₀₁ ) _n101 -M ₁₀₁ -(L ₁₀₂ ) _m101

In Formula A, descriptions of L ₁₀₁ , n101 , M ₁₀₁ , L ₁₀₂ and m101 are shown in Tables 1 and 2 below:

compound
designation L ₁₀₁ n101 M ₁₀₁ L ₁₀₂ m101 compound
designation L ₁₀₁ n101 M ₁₀₁ L ₁₀₂ m101 BD001 LM1 3 Ir - 0 BD051 LM51 3 Ir - 0 BD002 LM2 3 Ir - 0 BD052 LM52 3 Ir - 0 BD003 LM3 3 Ir - 0 BD053 LM53 3 Ir - 0 BD004 LM4 3 Ir - 0 BD054 LM54 3 Ir - 0 BD005 LM5 3 Ir - 0 BD055 LM55 3 Ir - 0 BD006 LM6 3 Ir - 0 BD056 LM56 3 Ir - 0 BD007 LM7 3 Ir - 0 BD057 LM57 3 Ir - 0 BD008 LM8 3 Ir - 0 BD058 LM58 3 Ir - 0 BD009 LM9 3 Ir - 0 BD059 LM59 3 Ir - 0 BD010 LM10 3 Ir - 0 BD060 LM60 3 Ir - 0 BD011 LM11 3 Ir - 0 BD061 LM61 3 Ir - 0 BD012 LM12 3 Ir - 0 BD062 LM62 3 Ir - 0 BD013 LM13 3 Ir - 0 BD063 LM63 3 Ir - 0 BD014 LM14 3 Ir - 0 BD064 LM64 3 Ir - 0 BD015 LM15 3 Ir - 0 BD065 LM65 3 Ir - 0 BD016 LM16 3 Ir - 0 BD066 LM66 3 Ir - 0 BD017 LM17 3 Ir - 0 BD067 LM67 3 Ir - 0 BD018 LM18 3 Ir - 0 BD068 LM68 3 Ir - 0 BD019 LM19 3 Ir - 0 BD069 LM69 3 Ir - 0 BD020 LM20 3 Ir - 0 BD070 LM70 3 Ir - 0 BD021 LM21 3 Ir - 0 BD071 LM71 3 Ir - 0 BD022 LM22 3 Ir - 0 BD072 LM72 3 Ir - 0 BD023 LM23 3 Ir - 0 BD073 LM73 3 Ir - 0 BD024 LM24 3 Ir - 0 BD074 LM74 3 Ir - 0 BD025 LM25 3 Ir - 0 BD075 LM75 3 Ir - 0 BD026 LM26 3 Ir - 0 BD076 LM76 3 Ir - 0 BD027 LM27 3 Ir - 0 BD077 LM77 3 Ir - 0 BD028 LM28 3 Ir - 0 BD078 LM78 3 Ir - 0 BD029 LM29 3 Ir - 0 BD079 LM79 3 Ir - 0 BD030 LM30 3 Ir - 0 BD080 LM80 3 Ir - 0 BD031 LM31 3 Ir - 0 BD081 LM81 3 Ir - 0 BD032 LM32 3 Ir - 0 BD082 LM82 3 Ir - 0 BD033 LM33 3 Ir - 0 BD083 LM83 3 Ir - 0 BD034 LM34 3 Ir - 0 BD084 LM84 3 Ir - 0 BD035 LM35 3 Ir - 0 BD085 LM85 3 Ir - 0 BD036 LM36 3 Ir - 0 BD086 LM86 3 Ir - 0 BD037 LM37 3 Ir - 0 BD087 LM87 3 Ir - 0 BD038 LM38 3 Ir - 0 BD088 LM88 3 Ir - 0 BD039 LM39 3 Ir - 0 BD089 LM89 3 Ir - 0 BD040 LM40 3 Ir - 0 BD090 LM90 3 Ir - 0 BD041 LM41 3 Ir - 0 BD091 LM91 3 Ir - 0 BD042 LM42 3 Ir - 0 BD092 LM92 3 Ir - 0 BD043 LM43 3 Ir - 0 BD093 LM93 3 Ir - 0 BD044 LM44 3 Ir - 0 BD094 LM94 3 Ir - 0 BD045 LM45 3 Ir - 0 BD095 LM95 3 Ir - 0 BD046 LM46 3 Ir - 0 BD096 LM96 3 Ir - 0 BD047 LM47 3 Ir - 0 BD097 LM97 3 Ir - 0 BD048 LM48 3 Ir - 0 BD098 LM98 3 Ir - 0 BD049 LM49 3 Ir - 0 BD099 LM99 3 Ir - 0 BD050 LM50 3 Ir - 0 BD100 LM100 3 Ir - 0

compound
designation L ₁₀₁ n101 M ₁₀₁ L ₁₀₂ m101 compound
designation L ₁₀₁ n101 M ₁₀₁ L ₁₀₂ m101 BD101 LM101 3 Ir - 0 BD151 LM151 3 Ir - 0 BD102 LM102 3 Ir - 0 BD152 LM152 3 Ir - 0 BD103 LM103 3 Ir - 0 BD153 LM153 3 Ir - 0 BD104 LM104 3 Ir - 0 BD154 LM154 3 Ir - 0 BD105 LM105 3 Ir - 0 BD155 LM155 3 Ir - 0 BD106 LM106 3 Ir - 0 BD156 LM156 3 Ir - 0 BD107 LM107 3 Ir - 0 BD157 LM157 3 Ir - 0 BD108 LM108 3 Ir - 0 BD158 LM158 3 Ir - 0 BD109 LM109 3 Ir - 0 BD159 LM159 3 Ir - 0 BD110 LM110 3 Ir - 0 BD160 LM160 3 Ir - 0 BD111 LM111 3 Ir - 0 BD161 LM161 3 Ir - 0 BD112 LM112 3 Ir - 0 BD162 LM162 3 Ir - 0 BD113 LM113 3 Ir - 0 BD163 LM163 3 Ir - 0 BD114 LM114 3 Ir - 0 BD164 LM164 3 Ir - 0 BD115 LM115 3 Ir - 0 BD165 LM165 3 Ir - 0 BD116 LM116 3 Ir - 0 BD166 LM166 3 Ir - 0 BD117 LM117 3 Ir - 0 BD167 LM167 3 Ir - 0 BD118 LM118 3 Ir - 0 BD168 LM168 3 Ir - 0 BD119 LM119 3 Ir - 0 BD169 LM169 3 Ir - 0 BD120 LM120 3 Ir - 0 BD170 LM170 3 Ir - 0 BD121 LM121 3 Ir - 0 BD171 LM171 3 Ir - 0 BD122 LM122 3 Ir - 0 BD172 LM172 3 Ir - 0 BD123 LM123 3 Ir - 0 BD173 LM173 3 Ir - 0 BD124 LM124 3 Ir - 0 BD174 LM174 3 Ir - 0 BD125 LM125 3 Ir - 0 BD175 LM175 3 Ir - 0 BD126 LM126 3 Ir - 0 BD176 LM176 3 Ir - 0 BD127 LM127 3 Ir - 0 BD177 LM177 3 Ir - 0 BD128 LM128 3 Ir - 0 BD178 LM178 3 Ir - 0 BD129 LM129 3 Ir - 0 BD179 LM179 3 Ir - 0 BD130 LM130 3 Ir - 0 BD180 LM180 3 Ir - 0 BD131 LM131 3 Ir - 0 BD181 LM181 3 Ir - 0 BD132 LM132 3 Ir - 0 BD182 LM182 3 Ir - 0 BD133 LM133 3 Ir - 0 BD183 LM183 3 Ir - 0 BD134 LM134 3 Ir - 0 BD184 LM184 3 Ir - 0 BD135 LM135 3 Ir - 0 BD185 LM185 3 Ir - 0 BD136 LM136 3 Ir - 0 BD186 LM186 3 Ir - 0 BD137 LM137 3 Ir - 0 BD187 LM187 3 Ir - 0 BD138 LM138 3 Ir - 0 BD188 LM188 3 Ir - 0 BD139 LM139 3 Ir - 0 BD189 LM189 3 Ir - 0 BD140 LM140 3 Ir - 0 BD190 LM190 3 Ir - 0 BD141 LM141 3 Ir - 0 BD191 LM191 3 Ir - 0 BD142 LM142 3 Ir - 0 BD192 LM192 3 Ir - 0 BD143 LM143 3 Ir - 0 BD193 LM193 3 Ir - 0 BD144 LM144 3 Ir - 0 BD194 LM194 3 Ir - 0 BD145 LM145 3 Ir - 0 BD195 LM195 3 Ir - 0 BD146 LM146 3 Ir - 0 BD196 LM196 3 Ir - 0 BD147 LM147 3 Ir - 0 BD197 LM197 3 Ir - 0 BD148 LM148 3 Ir - 0 BD198 LM198 3 Ir - 0 BD149 LM149 3 Ir - 0 BD199 LM199 3 Ir - 0 BD150 LM150 3 Ir - 0 BD200 LM200 3 Ir - 0

compound
designation L ₁₀₁ n101 M ₁₀₁ L ₁₀₂ m101 compound
designation L ₁₀₁ n101 M ₁₀₁ L ₁₀₂ m101 BD201 LM201 3 Ir - 0 BD251 LFP1 3 Ir - 0 BD202 LM202 3 Ir - 0 BD252 LFP2 3 Ir - 0 BD203 LM203 3 Ir - 0 BD253 LFP3 3 Ir - 0 BD204 LM204 3 Ir - 0 BD254 LFP4 3 Ir - 0 BD205 LM205 3 Ir - 0 BD255 LFP5 3 Ir - 0 BD206 LM206 3 Ir - 0 BD256 LFP6 3 Ir - 0 BD207 LM207 3 Ir - 0 BD257 LFP7 3 Ir - 0 BD208 LM208 3 Ir - 0 BD258 LM47 2 Ir AN1 One BD209 LM209 3 Ir - 0 BD259 LM47 2 Ir AN2 One BD210 LM210 3 Ir - 0 BD260 LM47 2 Ir AN3 One BD211 LM211 3 Ir - 0 BD261 LM47 2 Ir AN4 One BD212 LM212 3 Ir - 0 BD262 LM47 2 Ir AN5 One BD213 LM213 3 Ir - 0 BD263 LM11 2 Pt - 0 BD214 LM214 3 Ir - 0 BD264 LM13 2 Pt - 0 BD215 LM215 3 Ir - 0 BD265 LM15 2 Pt - 0 BD216 LM216 3 Ir - 0 BD266 LM45 2 Pt - 0 BD217 LM217 3 Ir - 0 BD267 LM47 2 Pt - 0 BD218 LM218 3 Ir - 0 BD268 LM49 2 Pt - 0 BD219 LM219 3 Ir - 0 BD269 LM98 2 Pt - 0 BD220 LM220 3 Ir - 0 BD270 LM100 2 Pt - 0 BD221 LM221 3 Ir - 0 BD271 LM102 2 Pt - 0 BD222 LM222 3 Ir - 0 BD272 LM132 2 Pt - 0 BD223 LM223 3 Ir - 0 BD273 LM134 2 Pt - 0 BD224 LM224 3 Ir - 0 BD274 LM136 2 Pt - 0 BD225 LM225 3 Ir - 0 BD275 LM151 2 Pt - 0 BD226 LM226 3 Ir - 0 BD276 LM153 2 Pt - 0 BD227 LM227 3 Ir - 0 BD277 LM158 2 Pt - 0 BD228 LM228 3 Ir - 0 BD278 LM180 2 Pt - 0 BD229 LM229 3 Ir - 0 BD279 LM182 2 Pt - 0 BD230 LM230 3 Ir - 0 BD280 LM187 2 Pt - 0 BD231 LM231 3 Ir - 0 BD281 LM201 2 Pt - 0 BD232 LM232 3 Ir - 0 BD282 LM206 2 Pt - 0 BD233 LM233 3 Ir - 0 BD283 LM211 2 Pt - 0 BD234 LM234 3 Ir - 0 BD284 LM233 2 Pt - 0 BD235 LM235 3 Ir - 0 BD285 LM235 2 Pt - 0 BD236 LM236 3 Ir - 0 BD286 LM240 2 Pt - 0 BD237 LM237 3 Ir - 0 BD287 LFM5 2 Pt - 0 BD238 LM238 3 Ir - 0 BD288 LFM6 2 Pt - 0 BD239 LM239 3 Ir - 0 BD289 LFM7 2 Pt - 0 BD240 LM240 3 Ir - 0 BD290 LFP5 2 Pt - 0 BD241 LM241 3 Ir - 0 BD291 LFP6 2 Pt - 0 BD242 LM242 3 Ir - 0 BD292 LFP7 2 Pt - 0 BD243 LM243 3 Ir - 0 BD293 LM47 One Pt AN1 One BD244 LFM1 3 Ir - 0 BD294 LM47 One Pt AN2 One BD245 LFM2 3 Ir - 0 BD295 LM47 One Pt AN3 One BD246 LFM3 3 Ir - 0 BD296 LM47 One Pt AN4 One BD247 LFM4 3 Ir - 0 BD297 LM47 One Pt AN5 One BD248 LFM5 3 Ir - 0 BD249 LFM6 3 Ir - 0 BD250 LFM7 3 Ir - 0

In Tables 1 to 3, LM1 to LM243 may be understood with reference to Formulas 1-1 to 1-3 and Tables 4 to 6 below:

Formula 1-1 Ligand name R ₁₁ R ₁₂ R ₁₃ R ₁₄ R ₁₅ R ₁₆ R ₁₇ R ₁₈ R ₁₉ R ₂₀ LM1 X1 H X3 H X1 H H H H D LM2 X1 H X3 H X1 H H H D H LM3 X1 H X3 H X1 H H H D D LM4 Y1 H X3 H Y1 H H H D D LM5 Y2 H X3 H Y2 H H H D D LM6 Y3 H X3 H Y3 H H H D D LM7 Y3 D X3 D Y3 H H H D D LM8 Y3 D X3 D Y3 D H H D D LM9 Y3 D X3 D Y3 D D H D D LM10 Y3 D X3 D Y3 D D D D D LM11 Y3 D Y11 D Y3 D D D D D LM12 Y3 D Y11 D Y3 H X1 H D D LM13 Y3 D Y11 D Y3 D Y3 D D D LM14 Y3 D Y11 D Y3 H X4 H D D LM15 Y3 D Y11 D Y3 D Y12 D D D LM16 X2 H X3 H X2 H H H H D LM17 X2 H X3 H X2 H H H D H LM18 X2 H X3 H X2 H H H D D LM19 Y4 H X3 H Y4 H H H D D LM20 Y5 H X3 H Y5 H H H D D LM21 Y6 H X3 H Y6 H H H D D LM22 Y7 H X3 H Y7 H H H D D LM23 Y8 H X3 H Y8 H H H D D LM24 Y9 H X3 H Y9 H H H D D LM25 Y10 H X3 H Y10 H H H D D LM26 Y10 D X3 D Y10 H H H D D LM27 Y10 D X3 D Y10 D H H D D LM28 Y10 D X3 D Y10 D D H D D LM29 Y10 D X3 D Y10 D D D D D LM30 Y10 D Y11 D Y10 D D D D D LM31 Y10 D Y11 D Y10 H X1 H D D LM32 Y10 D Y11 D Y10 D Y3 D D D LM33 Y10 D Y11 D Y10 H X4 H D D LM34 Y10 D Y11 D Y10 D Y12 D D D LM35 X1 H X4 H X1 H H H H D LM36 X1 H X4 H X1 H H H D H LM37 X1 H X4 H X1 H H H D D LM38 Y1 H X4 H Y1 H H H D D LM39 Y2 H X4 H Y2 H H H D D LM40 Y3 H X4 H Y3 H H H D D LM41 Y3 D X4 D Y3 H H H D D LM42 Y3 D X4 D Y3 D H H D D LM43 Y3 D X4 D Y3 D D H D D LM44 Y3 D X4 D Y3 D D D D D LM45 Y3 D Y12 D Y3 D D D D D LM46 Y3 D Y12 D Y3 H X1 H D D LM47 Y3 D Y12 D Y3 D Y3 D D D LM48 Y3 D Y12 D Y3 H X4 H D D LM49 Y3 D Y12 D Y3 D Y12 D D D LM50 X2 H X4 H X2 H H H H D LM51 X2 H X4 H X2 H H H D H LM52 X2 H X4 H X2 H H H D D LM53 Y4 H X4 H Y4 H H H D D LM54 Y5 H X4 H Y5 H H H D D LM55 Y6 H X4 H Y6 H H H D D LM56 Y7 H X4 H Y7 H H H D D LM57 Y8 H X4 H Y8 H H H D D LM58 Y9 H X4 H Y9 H H H D D LM59 Y10 H X4 H Y10 H H H D D LM60 Y10 D X4 D Y10 H H H D D LM61 Y10 D X4 D Y10 D H H D D LM62 Y10 D X4 D Y10 D D H D D LM63 Y10 D X4 D Y10 D D D D D LM64 Y10 D Y12 D Y10 D D D D D LM65 Y10 D Y12 D Y10 H X1 H D D LM66 Y10 D Y12 D Y10 D Y3 D D D LM67 Y10 D Y12 D Y10 H X4 H D D LM68 Y10 D Y12 D Y10 D Y12 D D D LM69 X1 H X5 H X1 H H H H D LM70 X1 H X5 H X1 H H H D H LM71 X1 H X5 H X1 H H H D D LM72 Y1 H X5 H Y1 H H H D D LM73 Y2 H X5 H Y2 H H H D D LM74 Y3 H X5 H Y3 H H H D D LM75 Y3 D X5 D Y3 H H H D D LM76 Y3 D X5 D Y3 D H H D D LM77 Y3 D X5 D Y3 D D H D D LM78 Y3 D X5 D Y3 D D D D D LM79 Y3 D Y13 D Y3 D D D D D LM80 Y3 D Y13 D Y3 H X1 H D D LM81 Y3 D Y13 D Y3 D Y3 D D D LM82 Y3 D Y13 D Y3 H X4 H D D LM83 Y3 D Y13 D Y3 D Y12 D D D LM84 X2 H X5 H X2 H H H H D LM85 X2 H X5 H X2 H H H D H LM86 X2 H X5 H X2 H H H D D LM87 Y4 H X5 H Y4 H H H D D LM88 Y5 H X5 H Y5 H H H D D LM89 Y6 H X5 H Y6 H H H D D LM90 Y7 H X5 H Y7 H H H D D LM91 Y8 H X5 H Y8 H H H D D LM92 Y9 H X5 H Y9 H H H D D LM93 Y10 H X5 H Y10 H H H D D LM94 Y10 D X5 D Y10 H H H D D LM95 Y10 D X5 D Y10 D H H D D LM96 Y10 D X5 D Y10 D D H D D LM97 Y10 D X5 D Y10 D D D D D LM98 Y10 D Y13 D Y10 D D D D D LM99 Y10 D Y13 D Y10 H X1 H D D LM100 Y10 D Y13 D Y10 D Y3 D D D LM101 Y10 D Y13 D Y10 H X4 H D D LM102 Y10 D Y13 D Y10 D Y12 D D D LM103 X1 H X6 H X1 H H H H D LM104 X1 H X6 H X1 H H H D H LM105 X1 H X6 H X1 H H H D D LM106 Y1 H X6 H Y1 H H H D D LM107 Y2 H X6 H Y2 H H H D D LM108 Y3 H X6 H Y3 H H H D D LM109 Y3 D X6 D Y3 H H H D D LM110 Y3 D X6 D Y3 D H H D D LM111 Y3 D X6 D Y3 D D H D D LM112 Y3 D X6 D Y3 D D D D D LM113 Y3 D Y14 D Y3 D D D D D LM114 Y3 D Y14 D Y3 H X1 H D D LM115 Y3 D Y14 D Y3 D Y3 D D D LM116 Y3 D Y14 D Y3 H X4 H D D LM117 Y3 D Y14 D Y3 D Y12 D D D LM118 X2 H X6 H X2 H H H H D LM119 X2 H X6 H X2 H H H D H LM120 X2 H X6 H X2 H H H D D LM121 Y4 H X6 H Y4 H H H D D LM122 Y5 H X6 H Y5 H H H D D LM123 Y6 H X6 H Y6 H H H D D LM124 Y7 H X6 H Y7 H H H D D LM125 Y8 H X6 H Y8 H H H D D LM126 Y9 H X6 H Y9 H H H D D LM127 Y10 H X6 H Y10 H H H D D LM128 Y10 D X6 D Y10 H H H D D LM129 Y10 D X6 D Y10 D H H D D LM130 Y10 D X6 D Y10 D D H D D LM131 Y10 D X6 D Y10 D D D D D LM132 Y10 D Y14 D Y10 D D D D D LM133 Y10 D Y14 D Y10 H X1 H D D LM134 Y10 D Y14 D Y10 D Y3 D D D LM135 Y10 D Y14 D Y10 H X4 H D D LM136 Y10 D Y14 D Y10 D Y12 D D D LM137 X1 H X7 H X1 H H H H D LM138 X1 H X7 H X1 H H H D H LM139 X1 H X7 H X1 H H H D D LM140 Y1 H X7 H Y1 H H H D D LM141 Y2 H X7 H Y2 H H H D D LM142 Y3 H X7 H Y3 H H H D D LM143 Y3 D X7 D Y3 H H H D D LM144 Y3 D X7 D Y3 D H H D D LM145 Y3 D X7 D Y3 D D H D D LM146 Y3 D X7 D Y3 D D D D D LM147 Y3 D X8 D Y3 D D D D D LM148 Y3 D Y16 D Y3 D D D D D LM149 Y3 D Y17 D Y3 D D D D D LM150 Y3 D Y18 D Y3 D D D D D LM151 Y3 D Y15 D Y3 D D D D D LM152 Y3 D Y15 D Y3 H X1 H D D LM153 Y3 D Y15 D Y3 D Y3 D D D LM154 Y3 D Y16 D Y3 D Y3 D D D LM155 Y3 D Y17 D Y3 D Y3 D D D LM156 Y3 D Y18 D Y3 D Y3 D D D LM157 Y3 D Y15 D Y3 H X4 H D D LM158 Y3 D Y15 D Y3 D Y12 D D D LM159 Y3 D Y16 D Y3 D Y12 D D D LM160 Y3 D Y17 D Y3 D Y12 D D D LM161 Y3 D Y18 D Y3 D Y12 D D D LM162 X2 H X7 H X2 H H H H D LM163 X2 H X7 H X2 H H H D H LM164 X2 H X7 H X2 H H H D D LM165 Y4 H X7 H Y4 H H H D D LM166 Y5 H X7 H Y5 H H H D D LM167 Y6 H X7 H Y6 H H H D D LM168 Y7 H X7 H Y7 H H H D D LM169 Y8 H X7 H Y8 H H H D D LM170 Y9 H X7 H Y9 H H H D D LM171 Y10 H X7 H Y10 H H H D D LM172 Y10 D X7 D Y10 H H H D D LM173 Y10 D X7 D Y10 D H H D D LM174 Y10 D X7 D Y10 D D H D D LM175 Y10 D X7 D Y10 D D D D D LM176 Y10 D X8 D Y10 D D D D D LM177 Y10 D Y16 D Y10 D D D D D LM178 Y10 D Y17 D Y10 D D D D D LM179 Y10 D Y18 D Y10 D D D D D LM180 Y10 D Y15 D Y10 D D D D D LM181 Y10 D Y15 D Y10 H X1 H D D LM182 Y10 D Y15 D Y10 D Y3 D D D LM183 Y10 D Y16 D Y10 D Y3 D D D LM184 Y10 D Y17 D Y10 D Y3 D D D LM185 Y10 D Y18 D Y10 D Y3 D D D LM186 Y10 D Y15 D Y10 H X4 H D D LM187 Y10 D Y15 D Y10 D Y12 D D D LM188 Y10 D Y16 D Y10 D Y12 D D D LM189 Y10 D Y17 D Y10 D Y12 D D D LM190 Y10 D Y18 D Y10 D Y12 D D D LM191 X1 X7 H H X1 H H H H D LM192 X1 X7 H H X1 H H H D H LM193 X1 X7 H H X1 H H H D D LM194 Y1 X7 H H Y1 H H H D D LM195 Y2 X7 H H Y2 H H H D D LM196 Y3 X7 H H Y3 H H H D D LM197 Y3 X7 D D Y3 H H H D D LM198 Y3 X7 D D Y3 D H H D D LM199 Y3 X7 D D Y3 D D H D D LM200 Y3 X7 D D Y3 D D D D D LM201 Y3 Y15 D D Y3 D D D D D LM202 Y3 Y16 D D Y3 D D D D D LM203 Y3 Y17 D D Y3 D D D D D LM204 Y3 Y18 D D Y3 D D D D D LM205 Y3 Y15 D D Y3 H X1 H D D LM206 Y3 Y15 D D Y3 D Y3 D D D LM207 Y3 Y16 D D Y3 D Y3 D D D LM208 Y3 Y17 D D Y3 D Y3 D D D LM209 Y3 Y18 D D Y3 D Y3 D D D LM210 Y3 Y15 D D Y3 H X4 H D D LM211 Y3 Y15 D D Y3 D Y12 D D D LM212 Y3 Y16 D D Y3 D Y12 D D D LM213 Y3 Y17 D D Y3 D Y12 D D D LM214 Y3 Y18 D D Y3 D Y12 D D D LM215 X2 X7 H H X2 H H H H D LM216 X2 X7 H H X2 H H H D H LM217 X2 X7 H H X2 H H H D D LM218 Y4 X7 H H Y4 H H H D D LM219 Y5 X7 H H Y5 H H H D D LM220 Y6 X7 H H Y6 H H H D D LM221 Y7 X7 H H Y7 H H H D D LM222 Y8 X7 H H Y8 H H H D D LM223 Y9 X7 H H Y9 H H H D D LM224 Y10 X7 H H Y10 H H H D D LM225 Y10 X7 D D Y10 H H H D D LM226 Y10 X7 D D Y10 D H H D D LM227 Y10 X7 D D Y10 D D H D D LM228 Y10 X7 D D Y10 D D D D D LM229 Y10 X8 D D Y10 D D D D D LM230 Y10 Y16 D D Y10 D D D D D LM231 Y10 Y17 D D Y10 D D D D D LM232 Y10 Y18 D D Y10 D D D D D LM233 Y10 Y15 D D Y10 D D D D D LM234 Y10 Y15 D D Y10 H X1 H D D LM235 Y10 Y15 D D Y10 D Y3 D D D LM236 Y10 Y16 D D Y10 D Y3 D D D LM237 Y10 Y17 D D Y10 D Y3 D D D LM238 Y10 Y18 D D Y10 D Y3 D D D LM239 Y10 Y15 D D Y10 H X4 H D D LM240 Y10 Y15 D D Y10 D Y12 D D D LM241 Y10 Y16 D D Y10 D Y12 D D D LM242 Y10 Y17 D D Y10 D Y12 D D D LM243 Y10 Y18 D D Y10 D Y12 D D D

Formula 1-2 Ligand name R ₁₁ X ₁₁ R ₁₀₁ R ₁₀₂ R ₁₀₃ R ₁₀₄ R ₁₄ R ₁₅ R ₁₆ R ₁₇ R ₁₈ R ₁₉ R ₂₀ LFM1 Y10 N-Ph D D D D D Y10 D D D D D LFM2 Y10 S D D D D D Y10 D D D D D LFM3 Y10 O D D D D D Y10 D D D D D LFM4 Y3 O D D D D D Y3 D D D D D LFM5 Y10 O D D D D D Y10 D D D D D LFM6 Y10 O D D D D D Y10 D Y3 D D D LFM7 Y10 O D D D D D Y10 D Y12 D D D

Formula 1-3 Ligand name R ₁₁ X ₁₁ R ₁₀₁ R ₁₀₂ R ₁₀₃ R ₁₀₄ R ₁₄ R ₁₅ R ₁₆ R ₁₇ R ₁₈ R ₁₉ R ₂₀ LFP1 Y10 N-Ph D D D D D Y10 D D D D D LFP2 Y10 S D D D D D Y10 D D D D D LFP3 Y10 O D D D D D Y10 D D D D D LFP4 Y3 O D D D D D Y3 D D D D D LFP5 Y10 O D D D D D Y10 D D D D D LFP6 Y10 O D D D D D Y10 D Y3 D D D LFP7 Y10 O D D D D D Y10 D Y12 D D D

X1 to X10 and Y1 to Y18 in Tables 4 to 6 are as follows, and Ph in the Tables means a phenyl group:

<Group VI>

In an embodiment, the sensor may include a thermally activated delayed fluorescence emitter represented by Chemical Formula 201 or 202 described above.

For example, in Formula 202, W ₂₁₁ may be a substituted or unsubstituted π-electron deficient nitrogen-free cyclic group.

Specifically, the π-electron deficient nitrogen-free cyclic group is a benzene group, a heptalene group, an indene group, a naphthalene group, an azulene group, an indacene group, an acenaphthylene group, a fluorene group, spiro-by. Fluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group , perylene group, pentacene group, hexacene group, pentacene group, rubycene group, corogen group, ovalene group, pyrrole group, isoindole group, indole group, furan group, thiophene group, benzofuran group, Benzothiophene group, benzocarbazole group, dibenzocarbazole group, dibenzofuran group, dibenzothiophene group, dibenzothiophene sulfone group, carbazole group, dibenzosilol group, indenocarba azole group, indolocarbazole group, benzofurocarbazole group, benzothienocarbazole group and triindolobenzene group; and a condensed ring of two or more of the π-electron deficient nitrogen-free cyclic groups; may be selected from, but is not limited thereto.

For example, in Formula 202, D ₂₁₁ is -F, a cyano group, a π-electron deficient nitrogen-containing cyclic group;

a C ₁ -C ₆₀ alkyl group, a π electron deficient nitrogen-containing cyclic group and a π electron deficient nitrogen-free cyclic group substituted with at least one selected from -F and a cyano group; and

deuterium, a C ₁ -C ₆₀ alkyl group, a π electron deficient nitrogen-containing cyclic group and a π electron deficient nitrogen-free cyclic group; a π-electron deficient nitrogen-containing cyclic group substituted with at least one selected from; can be selected from

Specifically, the π-electron deficient nitrogen-free cyclic group refers to the above.

Specifically, the π-electron deficient nitrogen-containing cyclic group is a cyclic group having at least one *-N=*' moiety, for example, an imidazole group, a pyrazole group, a thiazole group, and isothiazole. group, oxazole group, isoxazole group, pyridine group, pyrazine group, pyridazine group, pyrimidine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, Naphthyridine group, quinoxaline group, quinazoline group, cinoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, isobenzothiazole group, benzoxazole group , isobenzoxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyrimidine group, azacarbazole group, and benzimida zolobenziimidazole; and a condensed ring of two or more of the π electron deficient nitrogen-containing cyclic groups; can be selected from

In another embodiment, the sensor may be selected from the following groups VII to XIII, but is not limited thereto:

<Group VII>

<Group VIII>

<Group IX>

<Group X>

<Group XI>

<Group XII>

<Group XIII>

[Hole transport region (12)]

A hole transport region 12 is disposed between the first electrode 11 and the emission layer 15 of the organic light emitting diode 10 .

The hole transport region 12 may have a single-layered or multi-layered structure.

For example, the hole transport region 12 may include a hole injection layer, a hole transport layer, a hole injection layer/hole transport layer, a hole injection layer/first hole transport layer/second hole transport layer, a hole transport layer/intermediate layer, a hole injection layer/hole It may have a structure of a transport layer/intermediate layer, a hole transport layer/electron blocking layer, or a hole injection layer/hole transport layer/electron blocking layer, but is not limited thereto.

The hole transport region 12 may include any compound having hole transport properties.

For example, the hole transport region 12 may include an amine-based compound.

According to one embodiment, the hole transport region 12 may include at least one selected from a compound represented by the following Chemical Formula 201 to a compound represented by the following Chemical Formula 205, but is not limited thereto:

<Formula 201>

<Formula 202>

<Formula 203>

<Formula 204>

<Formula 205>

In Formulas 201 to 205,

L ₂₀₁ to L ₂₀₉ are each independently, *-O-*', *-S-*', a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group, or a substituted or unsubstituted C ₁ -C ₆₀ hetero cyclic group,

xa1 to xa9 are each independently selected from an integer of 0 to 5;

R ₂₀₁ to R ₂₀₆ are each independently a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, or a substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group , substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group are selected, and two adjacent groups of R ₂₀₁ to R ₂₀₆ may optionally be connected to each other through a single bond, a dimethyl-methylene group or a diphenyl-methylene group.

for example,

L ₂₀₁ to L ₂₀₉ are deuterium, C ₁ -C ₁₀ alkyl group, C ₁ -C ₁₀ alkoxy group, phenyl group, naphthyl group, fluorenyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, triphenylle A benzene group, a heptalene group, an indene group, a naphthalene group, an azulene group, unsubstituted or substituted with at least one selected from a nyl group, a biphenyl group, a terphenyl group, a tetraphenyl group, and -Si(Q ₁₁ )(Q ₁₂ )(Q ₁₃ ) Group, heptalene group, indacene group, acenaphthylene group, fluorene group, spiro-bifluorene group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluorine Lanthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, pisene group, perylene group, pentacene group, hexacene group, pentacene group, rubycene group, corogen group, ovalene group, pyrrole group, isoindole group, indole group, furan group, thiophene group, benzofuran group, benzothiophene group, benzocarbazole group, dibenzocarbazole group, dibenzofuran group, dibenzothiophene group, Dibenzothiophene sulfone group, carbazole group, dibenzosilol group, indenocarbazole group, indolocarbazole group, benzofurocarbazole group, benzothienocarbazole group and triindolobenzene can be selected from a group,

xa1 to xa9 are each independently 0, 1 or 2,

R ₂₀₁ to R ₂₀₆ are each independently, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenyl group, terphenyl group, C ₁ -C ₁₀ alkyl group substituted phenyl group , -F substituted phenyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, heptalenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group , dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphthacenyl group, picenyl group, perylenyl group, penta Phenyl group, hexacenyl group, pentacenyl group, rubycenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindoleyl group, benzofuranyl group, benzothiophenyl group, dibenzofura Nyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ) and -N(Q ₃₁ )(Q ₃₂ ) substituted or unsubstituted with at least one selected from among a phenyl group, a biphenyl group, a terphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, Spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, naphtha Cenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, rubycenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindoleyl group , benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, indenocarbazolyl group, indolocarbazolyl group , is selected from a benzofurocarbazolyl group and a benzothienocarbazolyl group,

The Q ₁₁ to Q ₁₃ and Q ₃₁ to Q ₃₃ are each independently selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group.

According to one embodiment, the hole transport region 12 may include a carbazole-containing amine-based compound.

According to another embodiment, the hole transport region 12 may include a carbazole-containing amine-based compound and a carbazole-free amine-based compound.

The carbazole-containing amine compound includes, for example, a carbazole group, a dibenzofuran group, a dibenzothiophene group, a fluorene group, a spiro-bifluorene group, an indenocarbazole group, It may be selected from the compound represented by Formula 201, which further includes at least one of an indolocarbazole group, a benzofurocarbazole group, and a benzothienocarbazole group.

The carbazole-free amine compound, for example, does not include a carbazole group, and includes a dibenzofuran group, a dibenzothiophene group, a fluorene group, a spiro-bifluorene group, and an indenocarbazole group. At least one of a group, an indolocarbazole group, a benzofurocarbazole group and a benzothienocarbazole group may be selected from the compound represented by Formula 201.

According to another embodiment, the hole transport region 12 may include at least one selected from compounds represented by Chemical Formulas 201 or 202.

According to an embodiment, the hole transport region 12 may include at least one selected from compounds represented by the following Chemical Formulas 201-1, 202-1, and 201-2, but is not limited thereto:

<Formula 201-1>

<Formula 202-1>

<Formula 201-2>

Descriptions of L ₂₀₁ to L ₂₀₃ , L ₂₀₅ , xa1 to xa3 , xa5, R ₂₀₁ and R ₂₀₂ in Formulas 201-1, 202-1, and 201-2 refer to those described in the present specification, respectively, and R ₂₁₁ to R ₂₁₃ is independently of each other hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C ₁ -C ₂₀ Alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, C ₁ -C ₁₀ alkyl group substituted phenyl group, -F substituted phenyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group , dimethyl fluorenyl group, diphenyl fluorenyl group, triphenylenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindoleyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothio It is selected from a phenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, and a pyridinyl group.

For example, the hole transport region 12 may include at least one selected from the following compounds HT1 to HT39, but is not limited thereto.

Meanwhile, the hole transport region 12 of the organic light emitting diode 10 may further include a p-dopant. When the hole transport region 12 further includes a p-dopant, the hole transport region 12 may include a matrix (eg, at least one of the compounds represented by Chemical Formulas 201 to 205) and p included in the matrix. - It may have a structure including a dopant. The p-dopant may be uniformly or non-uniformly doped in the hole transport region 12 .

According to one embodiment, the LUMO energy level of the p-dopant may be -3.5 eV or less.

The p-dopant may include at least one selected from a quinone derivative, a metal oxide, and a cyano group-containing compound, but is not limited thereto.

For example, the p-dopant is

quinone derivatives such as TCNQ (Tetracyanoquinodimethane), F4-TCNQ (2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane), F6-TCNNQ and the like;

metal oxides such as tungsten oxide and molybdenum oxide;

HAT-CN (1,4,5,8,9,12-hexaazatriphenylene-hexacarbonitrile); and

A compound represented by the following Chemical Formula 221;

It may include at least one selected from, but is not limited thereto:

<Formula 221>

In Formula 221,

R ₂₂₁ to R ₂₂₃ are each independently, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group , substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent It is selected from a non-aromatic condensed polycyclic group and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, wherein at least one of R ₂₂₁ to R ₂₂₃ is a cyano group, -F, -Cl, -Br, -I, At least selected from a C ₁ -C ₂₀ alkyl group substituted with -F, a C ₁ -C ₂₀ alkyl group substituted with -Cl, a C ₁ -C ₂₀ alkyl group substituted with -Br and a C ₁ -C ₂₀ alkyl group substituted with -I has one substituent.

The hole transport region 12 may have a thickness of about 100 Å to about 10000 Å, for example, about 400 Å to about 2000 Å, and the thickness of the emission layer 15 may be about 100 Å to about 3000 Å, for example, about 300 Å to about 300 Å. It may be about 1000 Å. When the thickness of the hole transport region 12 and the light emitting layer 15 satisfies the above-described ranges, satisfactory hole transport characteristics and/or light emitting characteristics can be obtained without a substantial increase in driving voltage.

[electron transport region 17]

An electron transport region 17 is disposed between the emission layer 15 and the second electrode 19 of the organic light emitting diode 10 .

The electron transport region 17 may have a single-layered or multi-layered structure.

For example, the electron transport region 17 may include an electron transport layer, an electron transport layer/electron injection layer, a buffer layer/electron transport layer, a hole blocking layer/electron transport layer, a buffer layer/electron transport layer/electron injection layer or a hole blocking layer/electron transport layer/ It may have a structure of an electron injection layer, but is not limited thereto. The electron transport region 17 may further include an electron control layer.

The electron transport region 17 may include a known electron transport material.

The electron transport region (eg, a buffer layer, a hole blocking layer, an electron control layer, or an electron transport layer in the electron transport region) may include a metal-free compound including at least one π electron deficient nitrogen-containing cyclic group. can For the description of the π-electron deficient nitrogen-containing cyclic group, refer to the bar described herein.

For example, the electron transport region may include a compound represented by the following Chemical Formula 601.

<Formula 601>

[Ar ₆₀₁ ] _xe11 -[(L ₆₀₁ ) _xe1 -R ₆₀₁ ] _xe21

In Formula 601,

Ar ₆₀₁ and L ₆₀₁ are each independently a substituted or unsubstituted C ₅ -C ₆₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₆₀ heterocyclic group,

xe11 is 1, 2 or 3,

xe1 is selected from an integer of 0 to 5,

R ₆₀₁ is a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group , a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, -Si(Q ₆₀₁ ) (Q ₆₀₂ )(Q ₆₀₃ ), -C(=O)(Q ₆₀₁ ), -S(=O) ₂ (Q ₆₀₁ ) and -P(=O)(Q ₆₀₁ )(Q ₆₀₂ ); ,

wherein Q ₆₀₁ to Q ₆₀₃ are each independently a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group or a naphthyl group,

xe21 is selected from an integer of 1 to 5;

According to one embodiment, at least one of xe11 Ar ₆₀₁ and xe21 R ₆₀₁ may include a π-electron deficient nitrogen-containing cyclic group as described above.

According to one embodiment, in Formula 601, rings Ar ₆₀₁ and L ₆₀₁ may each independently represent deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, or a hydra group. Zino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, -Si(Q ₃₁ )(Q ₃₂ )(Q ₃₃ ), -S (=O) ₂ (Q ₃₁ ) and -P(=O)(Q ₃₁ )(Q ₃₂ ) substituted or unsubstituted with at least one selected from a benzene group, a naphthalene group, a fluorene group, and a spiro-bifluorene Group, benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group, phen Rylene group, pentaphen group, indenoanthracene group, dibenzofuran group, dibenzothiophene group, carbazole group, imidazole group, pyrazole group, thiazole group, isothiazole group, oxazole group, isoxazole group, pyridine group, pyrazine group, pyrimidine group, pyridazine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group, quinoxaline group, quinazoline group , cinoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, isobenzothiazole group, benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyrimidine group and azacarbazole group;

can be selected from

The Q ₃₁ to Q ₃₃ may be each independently selected from a C ₁ -C ₁₀ alkyl group, a C ₁ -C ₁₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, and a naphthyl group.

In Formula 601, when xe11 is two or more, two or more Ar ₆₀₁ may be connected to each other through a single bond.

According to another embodiment, Ar ₆₀₁ in Formula 601 may be an anthracene group.

According to another embodiment, the compound represented by 601 may be represented by the following Chemical Formula 601-1:

<Formula 601-1>

In Formula 601-1,

X ₆₁₄ is N or C(R ₆₁₄ ), X ₆₁₅ is N or C(R ₆₁₅ ), X ₆₁₆ is N or C(R ₆₁₆ ), and at least one of X ₆₁₄ to X ₆₁₆ is N,

L ₆₁₁ to L ₆₁₃ are each independently, refer to the description of L ₆₀₁ ,

xe611 to xe613 refer to the description of xe1 above, independently of each other,

R ₆₁₁ to R ₆₁₃ are each independently refer to the description of R ₆₀₁ ,

R ₆₁₄ to R ₆₁₆ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C ₁ It may be selected from a -C ₂₀ alkyl group, a C ₁ -C ₂₀ alkoxy group, a phenyl group, a biphenyl group, a terphenyl group and a naphthyl group.

According to another embodiment, in Formulas 601 and 601-1, xe1 and xe611 to xe613 may each independently be 0, 1, or 2.

According to another embodiment, in Formulas 601 and 601-1, R ₆₀₁ and R ₆₁₁ to R ₆₁₃ may each independently represent deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, or a nitro group. group, amidino group, hydrazino group, hydrazono group, C ₁ -C ₂₀ alkyl group, C ₁ -C ₂₀ alkoxy group, phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, spiro-bifluorene nyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindoleyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, Dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidi Nyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, phenanthridinyl group , acridinyl group, phenanthrolinyl group, phenazinyl group, benzoimidazolyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzoxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyridinyl group A phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzoflu Orenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, Carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imi Dazolyl, pyrazolyl, thiazolyl, isothiazole Diary, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group , phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazolyl group; and

-S(=O) ₂ (Q ₆₀₁ ) and -P(=O)(Q ₆₀₁ )(Q ₆₀₂ );

is selected from

For the description of Q ₆₀₁ and Q ₆₀₂ , refer to the description herein.

The electron transport region may include at least one compound selected from the following compounds ET1 to ET36, but is not limited thereto:

Alternatively, the electron transport region is BCP (2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline), Bphen (4,7-Diphenyl-1,10-phenanthroline), Alq ₃ , BAlq, TAZ ( at least one compound selected from 3-(Biphenyl-4-yl)-5-(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole) and NTAZ.

The thickness of the buffer layer, the hole blocking layer, or the electron control layer may be, independently of each other, about 20 Å to about 1000 Å, for example, about 30 Å to about 300 Å. When the thickness of the buffer layer, the hole blocking layer, or the electron control layer satisfies the above-described ranges, excellent hole blocking characteristics or electron control characteristics can be obtained without a substantial increase in driving voltage.

The electron transport layer may have a thickness of about 100 Å to about 1000 Å, for example, about 150 Å to about 500 Å. When the thickness of the electron transport layer satisfies the above range, a satisfactory electron transport characteristic may be obtained without a substantial increase in driving voltage.

The electron transport region 17 (eg, an electron transport layer in the electron transport region) may further include a metal-containing material in addition to the above-described material.

The metal-containing material may include at least one selected from an alkali metal complex and an alkaline earth metal complex. The metal ions of the alkali metal complex may be selected from Li ions, Na ions, K ions, Rb ions and Cs ions, and the metal ions of the alkaline earth metal complex include Be ions, Mg ions, Ca ions, Sr ions, and Ba ions. ions may be selected. The ligand coordinated to the metal ion of the alkali metal complex and the alkaline earth metal complex is, independently of each other, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyl Oxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzoimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline and cyclopentadiene, but is not limited thereto.

For example, the metal-containing material may include a Li complex. The Li complex may include, for example, the following compound ET-D1 (lithium quinolate, LiQ) or ET-D2.

The electron transport region 17 may include an electron injection layer that facilitates electron injection from the second electrode 19 . The electron injection layer may directly contact the second electrode 19 .

The electron injection layer has i) a single-layer structure comprising a single layer made of a single material, ii) a single-layer structure comprising a single layer made of a plurality of different materials, or iii) a multilayer structure having a plurality of layers made of a plurality of different materials can have

The electron injection layer may include an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

The alkali metal may be selected from Li, Na, K, Rb and Cs. According to one embodiment, the alkali metal may be Li, Na, or Cs. According to another embodiment, the alkali metal may be Li or Cs, but is not limited thereto.

The alkaline earth metal may be selected from Mg, Ca, Sr, and Ba.

The rare earth metal may be selected from Sc, Y, Ce, Tb, Yb and Gd.

The alkali metal compound, the alkaline earth metal compound, and the rare earth metal compound may be selected from oxides and halides (eg, fluoride, chloride, bromide, iodide, etc.) of the alkali metal, the alkaline earth metal and the rare earth metal. have.

The alkali metal compound may be selected from alkali metal oxides such as Li ₂ O, Cs ₂ O, K ₂ O, and the like, and alkali metal halides such as LiF, NaF, CsF, KF, LiI, NaI, CsI, KI, and the like. According to an embodiment, the alkali metal compound may be selected from LiF, Li ₂ O, NaF, LiI, NaI, CsI, and KI, but is not limited thereto.

The alkaline earth metal compound may be selected from alkaline earth metal compounds such as BaO, SrO, CaO, Ba _x Sr _1-x O (0<x<1), Ba _x Ca _1-x O (0<x<1), and the like. have. According to an embodiment, the alkaline earth metal compound may be selected from BaO, SrO, and CaO, but is not limited thereto.

The rare earth metal compound may be selected from YbF ₃ , ScF ₃ , ScO ₃ , Y ₂ O ₃ , Ce ₂ O ₃ , GdF ₃ , and TbF ₃ . According to one embodiment, the rare earth metal compound may be selected from YbF ₃ , ScF ₃ , TbF ₃ , YbI ₃ , ScI ₃ , and TbI ₃ , but is not limited thereto.

The alkali metal complex, the alkaline earth metal complex and the rare earth metal complex include ions of an alkali metal, an alkaline earth metal and a rare earth metal as described above, and are coordinated to a metal ion of the alkali metal complex, the alkaline earth metal complex and the rare earth metal complex. The ligand is, independently of each other, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxa diazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzoimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline and cyclopentadiene it is not

The electron injection layer consists of an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof as described above, or , the organic material may be further included. When the electron injection layer further includes an organic material, the alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or any of these The combination may be uniformly or non-uniformly dispersed in the matrix made of the organic material.

The electron injection layer may have a thickness of about 1 Å to about 100 Å, or about 3 Å to about 90 Å. When the thickness of the electron injection layer satisfies the above range, a satisfactory level of electron injection characteristics may be obtained without a substantial increase in driving voltage.

[Second electrode 19]

The second electrode 19 is disposed on the organic layer 10A as described above. The second electrode 19 may be a cathode, which is an electron injection electrode. In this case, as a material for the second electrode 19, a metal, an alloy, an electrically conductive compound, and a combination thereof having a low work function. (combination) can be used.

The second electrode 19 includes lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), and magnesium-indium (Mg-In). ), magnesium-silver (Mg-Ag), may include at least one selected from ITO and IZO, but is not limited thereto. The second electrode 19 may be a transmissive electrode, a transflective electrode, or a reflective electrode.

The second electrode 19 may have a single-layer structure that is a single layer or a multi-layer structure having a plurality of layers.

In the above, the organic light emitting device has been described with reference to FIG. 1, but is not limited thereto.

Description of Figure 2

2 is a diagram schematically illustrating a cross-section of an organic light emitting device 100 according to another exemplary embodiment.

The organic light emitting device 100 of FIG. 2 includes a first electrode 110 , a second electrode 190 opposite to the first electrode 110 , and the first electrode 100 and the second electrode 190 . It includes a first light emitting unit 151 and a second light emitting unit 152 interposed therebetween. A charge generation layer 141 is disposed between the first light emitting unit 151 and the second light emitting unit 152 , and the charge generation layer 141 includes an n-type charge generation layer 141 -N and a p-type charge. and a generation layer 141 -P. The charge generation layer 141 is a layer that generates and supplies charges to an adjacent light emitting unit, and a known material may be used.

The first light emitting unit 151 includes a first light emitting layer 151 -EM, and the second light emitting unit 152 includes a second light emitting layer 152 -EM. The maximum emission wavelength of the light emitted from the first light emitting unit 151 may be different from the maximum emission wavelength of the light emitted from the second light emitting unit 152 . For example, the mixed light of the light emitted from the first light emitting unit 151 and the light emitted from the second light emitting unit 152 may be white light, but is not limited thereto.

A hole transport region 120 is disposed between the first light emitting unit 151 and the first electrode 110 , and the second light emitting unit 152 has a first hole disposed on the side of the first electrode 110 . a transport area 121 .

An electron transport region 170 is disposed between the second light emitting unit 152 and the second electrode 190 , and the first light emitting unit 151 includes a charge generating layer 141 and a first light emitting layer 151-EM. ) and a first electron transport region 171 disposed between them.

The first emission layer 151 -EM includes the above-described composition.

For example, the first light emitting layer 151-EM includes a host, a dopant, and a sensor, the sensor includes a first compound in the composition, and the dopant includes a second compound in the composition And, the host may include at least one third compound of the composition.

The second light emitting layer 152-EM includes the above-described composition.

For example, the second light emitting layer 152-EM includes a host, a dopant, and a sensor, the sensor includes a first compound in the composition, and the dopant includes a second compound in the composition And, the host may include at least one third compound of the composition.

For the description of the first electrode 110 and the second electrode 190 in FIG. 2 , refer to the description of the first electrode 11 and the second electrode 19 in FIG. 1 , respectively.

For a description of the first light-emitting layer 151-EM and the second light-emitting layer 152-EM in FIG. 2 , refer to the description of the light-emitting layer 15 in FIG. 2 , respectively.

Descriptions of the hole transport region 120 and the first hole transport region 121 in FIG. 2 refer to the description of the hole transport region 12 in FIG. 1 , respectively.

For the description of the electron transport region 170 and the first electron transport region 171 in FIG. 2 , refer to the description of the electron transport region 17 in FIG. 1 , respectively.

Above, with reference to FIG. 2 , both the first light emitting unit 151 and the second light emitting unit 152 are organic light emitting devices including a light emitting layer including a host, a dopant, and a sensor, as described herein. Although described, one of the first light emitting unit 151 and the second light emitting unit 152 of the organic light emitting device of FIG. 2 may be replaced with any known light emitting unit, or may include three or more light emitting units, etc. Variations are varied.

Description of Figure 3

3 is a diagram schematically illustrating a cross-section of an organic light emitting device 200 according to another exemplary embodiment.

The organic light emitting device 200 includes a first electrode 210 , a second electrode 290 opposite to the first electrode 210 , and between the first electrode 210 and the second electrode 290 . It includes a stacked first light emitting layer 251 and a second light emitting layer 252 .

The maximum emission wavelength of the light emitted from the first emission layer 251 may be different from the maximum emission wavelength of the light emitted from the second emission layer 252 . For example, the mixed light of the light emitted from the first emission layer 251 and the light emitted from the second emission layer 252 may be white light, but is not limited thereto.

Meanwhile, a hole transport region 220 is disposed between the first emission layer 251 and the first electrode 210 , and an electron transport region is disposed between the second emission layer 252 and the second electrode 290 . 270 is placed.

The first light emitting layer 251 includes the above-described composition.

For example, the first light emitting layer 251 includes a host, a dopant, and a sensor, the sensor includes a first compound in the composition, and the dopant includes a second compound in the composition, The host may include at least one third compound in the composition.

The second light emitting layer 252 includes the above-described composition.

For example, the second light-emitting layer 252 includes a host, a dopant, and a sensor, the sensor includes a first compound in the composition, and the dopant includes a second compound in the composition, The host may include at least one third compound in the composition.

The description of the first electrode 210 , the hole transport region 220 , and the second electrode 290 in FIG. 3 is the first electrode 11 , the hole transport region 12 , and the second electrode 19 in FIG. 1 , respectively. ) for reference.

For the description of the first light emitting layer 251 and the second light emitting layer 252 in FIG. 3 , refer to the description of the light emitting layer 15 in FIG. 1 , respectively.

The description of the electron transport region 270 in FIG. 3 refers to the description of the electron transport region 17 in FIG. 1 .

Above, with reference to FIG. 3 , both the first light emitting layer 251 and the second light emitting layer 252 have been described with respect to the organic light emitting device including the host, the dopant and the sensor as described herein, but FIG. 3 Any one of the first light-emitting layer 251 and the second light-emitting layer 252 of etc., various modifications are possible.

Explanation of terms

In the present specification, the C ₁ -C ₆₀ alkyl group refers to a linear or branched saturated aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, and specific examples thereof include a methyl group, an ethyl group, a propyl group, an isobutyl group, and a sec-butyl group. group, ter-butyl group, pentyl group, iso-amyl group, hexyl group, and the like. In the present specification, the C ₁ -C ₆₀ alkylene group refers to a divalent group having the same structure as the C ₁ -C ₆₀ alkyl group.

In the present specification, the C ₁ -C ₆₀ alkoxy group refers to a monovalent group having the formula of -OA ₁₀₁ (here, A ₁₀₁ is the C ₁ -C ₆₀ alkyl group), and specific examples thereof include a methoxy group, an ethoxy group, isopropyloxy group and the like.

In the present specification, the C ₂ -C ₆₀ alkenyl group has a structure including one or more carbon-carbon double bonds in the middle or at the terminal of the C ₂ -C ₆₀ alkyl group, and specific examples thereof include an ethenyl group, a propenyl group, a butenyl group, etc. This is included. In the present specification, the C ₂ -C ₆₀ alkenylene group refers to a divalent group having the same structure as the C ₂ -C ₆₀ alkenyl group.

In the present specification, the C ₂ -C ₆₀ alkynyl group has a structure including one or more carbon-carbon triple bonds in the middle or at the terminal of the C ₂ -C ₆₀ alkyl group, and specific examples thereof include an ethynyl group, a propynyl group ( propynyl), and the like. In the present specification, the C ₂ -C ₆₀ alkynylene group refers to a divalent group having the same structure as the C ₂ -C ₆₀ alkynyl group.

In the present specification, the C ₃ -C ₁₀ cycloalkyl group means a monovalent saturated hydrocarbon monocyclic group having 3 to 10 carbon atoms, and specific examples thereof include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, and a cyclohep group. til groups, and the like. In the present specification, the C ₃ -C ₁₀ cycloalkylene group refers to a divalent group having the same structure as the C ₃ -C ₁₀ cycloalkyl group.

In the present specification, the C ₁ -C ₁₀ heterocycloalkyl group refers to a monovalent monocyclic group having 1 to 10 carbon atoms including at least one hetero atom selected from N, O, P, Si and S as a ring-forming atom, Specific examples thereof include a tetrahydrofuranyl group, a tetrahydrothiophenyl group, and the like. In the present specification, the C ₁ -C ₁₀ heterocycloalkylene group refers to a divalent group having the same structure as the C ₁ -C ₁₀ heterocycloalkyl group.

In the present specification, the C ₃ -C ₁₀ cycloalkenyl group is a monovalent monocyclic group having 3 to 10 carbon atoms, and has at least one carbon-carbon double bond in the ring, but refers to a group that does not have aromaticity, , and specific examples thereof include a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, and the like. In the present specification, the C ₃ -C ₁₀ cycloalkenylene group refers to a divalent group having the same structure as the C ₃ -C ₁₀ cycloalkenyl group.

In the present specification, the C ₁ -C ₁₀ heterocycloalkenyl group is a monovalent monocyclic group having 1 to 10 carbon atoms including at least one hetero atom selected from N, O, P, Si and S as a ring-forming atom, has at least one double bond in it. Specific examples of the C ₁ -C ₁₀ heterocycloalkenyl group include a 2,3-dihydrofuranyl group, a 2,3-dihydrothiophenyl group, and the like. In the present specification, the C ₁ -C ₁₀ heterocycloalkenylene group refers to a divalent group having the same structure as the C ₁ -C ₁₀ heterocycloalkenyl group.

In the present specification, the C ₆ -C ₆₀ aryl group refers to a monovalent group having a carbocyclic aromatic system having 6 to 60 carbon atoms, and the C ₆ -C ₆₀ arylene group is a carbo group having 6 to 60 carbon atoms. It refers to a divalent group having a cyclic aromatic system. Specific examples of the C ₆ -C ₆₀ aryl group include a phenyl group, a naphthyl group, an anthracenyl group, a phenanthrenyl group, a pyrenyl group, a chrysenyl group, and the like. When the C ₆ -C ₆₀ aryl group and the C ₆ -C ₆₀ arylene group include two or more rings, the two or more rings may be fused to each other.

In the present specification, the C ₁ -C ₆₀ heteroaryl group includes at least one hetero atom selected from N, O, P, Si and S as a ring-forming atom and a monovalent group having a heterocyclic aromatic system having 1 to 60 carbon atoms. means, and the C ₁ -C ₆₀ heteroarylene group includes at least one hetero atom selected from N, O, P, Si and S as a ring-forming atom and has a carbocyclic aromatic system having 1 to 60 carbon atoms. means group. Specific examples of the C ₁ -C ₆₀ heteroaryl group include a pyridinyl group, a pyrimidinyl group, a pyrazinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, and the like. When the C ₁ -C ₆₀ heteroaryl group and the C ₁ -C ₆₀ heteroarylene group include two or more rings, the two or more rings may be fused to each other.

In the present specification, the C ₆ -C ₆₀ aryloxy group refers to -OA ₁₀₂ (here, A ₁₀₂ is the C ₆ -C ₆₀ aryl group), and the C ₆ -C ₆₀ arylthio group is -SA ₁₀₃ (here , A ₁₀₃ represents the above C ₆ -C ₆₀ aryl group).

In the present specification, a monovalent non-aromatic condensed polycyclic group includes two or more rings condensed with each other and contains only carbon as a ring-forming atom (eg, carbon number may be 8 to 60). and a monovalent group in which the entire molecule has non-aromaticity. Specific examples of the non-aromatic condensed polycyclic group include a fluorenyl group and the like. In the present specification, the divalent non-aromatic condensed polycyclic group refers to a divalent group having the same structure as the monovalent non-aromatic condensed polycyclic group.

In the present specification, in the monovalent non-aromatic condensed heteropolycyclic group, two or more rings are condensed with each other, and carbon as a ring-forming atom (eg, carbon number may be 1 to 60) in addition to It refers to a monovalent group including a hetero atom selected from N, O, P, Si and S, and the entire molecule has non-aromaticity. The monovalent non-aromatic condensed heteropolycyclic group includes a carbazolyl group and the like. In the present specification, the condensed divalent non-aromatic heteropolycyclic group refers to a divalent group having the same structure as the monovalent non-aromatic condensed heteropolycyclic group.

In the present specification, a C ₅ -C ₃₀ carbocyclic group refers to a saturated or unsaturated cyclic group having only 5 to 30 carbon atoms as ring forming atoms. The C ₅ -C ₃₀ carbocyclic group may be a monocyclic group or a polycyclic group, and may be a monovalent, divalent, trivalent, tetravalent, pentavalent or hexavalent group depending on the chemical structure.

In the present specification, the C ₁ -C ₃₀ heterocyclic group refers to a saturated or unsaturated cyclic group having at least one hetero atom selected from N, O, P, Si and S in addition to 1 to 30 carbon atoms as ring forming atoms. The C ₁ -C ₃₀ heterocyclic group may be a monocyclic group or a polycyclic group, and may be a monovalent, divalent, trivalent, tetravalent, pentavalent or hexavalent group depending on the chemical structure.

In the present specification, the substituted C ₅ -C ₃₀ carbocyclic group, substituted C ₁ -C ₃₀ heterocyclic group, substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ At least one of the substituents of the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed polycyclic group is,

Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or salt thereof, sulfonic acid group or salt thereof, phosphoric acid group or salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ an alkynyl group and a C ₁ -C ₆₀ alkoxy group;

Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or salt thereof, sulfonic acid group or salt thereof, phosphoric acid group or salt thereof, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ - C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group , monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₁₁ )(Q ₁₂ ), -Si(Q ₁₃ )(Q ₁₄ )(Q ₁₅ ), -B(Q) ₁₆ )(Q ₁₇ ) and -P(=O)(Q ₁₈ )(Q ₁₉ ), C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, and C ₁ -C ₆₀ alkoxy group;

C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryl an oxy group, a C ₆ -C ₆₀ arylthio group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group and a monovalent non-aromatic condensed heteropolycyclic group;

Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or salt thereof, sulfonic acid group or salt thereof, phosphoric acid group or salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ - C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group , -N(Q ₂₁ )(Q ₂₂ ), -Si(Q ₂₃ )(Q ₂₄ )(Q ₂₅ ), -B(Q ₂₆ )(Q ₂₇ ) and -P(=O)(Q ₂₈ )(Q ) ₂₉ ) substituted with at least one of, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group and monovalent non-aromatic condensed heteropolycyclic group; and

-N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₃ )(Q ₃₄ )(Q ₃₅ ), -B(Q ₃₆ )(Q ₃₇ ) and -P(=O)(Q ₃₈ )(Q ₃₉ ) ); is selected from

The Q ₁ to Q ₉ , Q ₁₁ to Q ₁₉ , Q ₂₁ to Q ₂₉ and Q ₃₁ to Q ₃₉ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, cya No group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or salt thereof, sulfonic acid group or salt thereof, phosphoric acid group or salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalke C ₆ -C ₆₀ aryl group substituted with at least one of nyl group, C ₆ -C ₆₀ aryl group, C ₁ -C ₆₀ alkyl group and C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C It is selected from a ₆₀ arylthio group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group and a monovalent non-aromatic condensed heteropolycyclic group.

In this specification, "room temperature" refers to a temperature of about 25 ℃.

In the present specification, "biphenyl group, terphenyl group, and tetraphenyl group" means a monovalent group in which two, three, or four phenyl groups are connected to each other through a single bond, respectively.

In the present specification, "cyano-containing phenyl group, cyano-containing biphenyl group, cyano-containing terphenyl group and cyano-containing tetraphenyl group" are each substituted with at least one cyano group, a phenyl group, a biphenyl group, a terphenyl group and a tetraphenyl group. A cyano group in the "cyano-containing phenyl group, cyano-containing biphenyl group, cyano-containing terphenyl group and cyano-containing tetraphenyl group" may be substituted at any position, and the "cyano-containing phenyl group, The cyano-containing biphenyl group, the cyano-containing terphenyl group and the cyano-containing tetraphenyl group" may further include other substituents in addition to the cyano group. For example, both a phenyl group substituted with a cyano group and a phenyl group substituted with a cyano group and a methyl group belong to "cyano-containing phenyl group".

Hereinafter, a compound and an organic light emitting device according to an embodiment of the present invention will be described in more detail with reference to Synthesis Examples and Examples, but the present invention is not limited to the following Synthesis Examples and Examples. In the following Synthesis Example, in the expression "'B' was used instead of 'A'", the amount of 'B' and the amount of 'A' used were the same on a molar equivalent basis.

[Example]

Example 1-1

An ITO glass substrate was cut into a size of 50 mm x 50 mm x 0.5 mm and ultrasonically cleaned in acetone isopropyl alcohol and pure water for 15 minutes each, followed by UV ozone cleaning for 30 minutes.

Next, F6-TCNNQ was deposited on the ITO electrode (anode) on the glass substrate to form a hole injection layer with a thickness of 100 Å, and HT1 was deposited on the hole injection layer to form a hole transport layer with a thickness of 1260 Å to form a hole transport region was formed.

Compound H-H104 (hereinafter, H-H1 ((first host)), compound 57 of <group HE4> (hereinafter, H-E1) (second host), compound SP001 (sensor) on the hole transport region (here, the weight ratio of the first host, the second host, and the sensor is 45:45:10) and FD1 (dopant) (here, the dopant is the first host, the second host, the sensitizer and 0.1 wt% based on the total weight of the dopant) was co-deposited to form a light emitting layer having a thickness of 400 Å.

Compound ET17 and Liq were co-deposited on the light emitting layer in a weight ratio of 5:5 to form an electron transport layer having a thickness of 360 Å, and then LiQ was deposited on the electron transport layer to form an electron injection layer having a thickness of 5 Å, and the electron injection By forming 800 Å thick Al on the layer, an organic light emitting device was manufactured.

Examples 1-2 to 1-3, Examples 2-1 to 2-3, Example 3-1, Comparative Example 1, Comparative Examples 1-1 to 1-3, Comparative Example 2, Comparative Examples 2-1 to 2-3, Comparative Example 3 and Comparative Example 3-1

An organic light emitting device was manufactured in the same manner as in Example 1-1, except that the compounds and contents shown in Table 7 were used for the sensorizer and the dopant when the light emitting layer was formed.

1st host 2nd host sensor dopant Dopant content (wt%) Comparative Example 1 H-H1 H-E1 SP001 - - Example 1-1 H-H1 H-E1 SP001 FD1 0.1 Example 1-2 H-H1 H-E1 SP001 FD1 0.5 Examples 1-3 H-H1 H-E1 SP001 FD1 1.5 Comparative Example 1-1 H-H1 H-E1 SP001 FD-A 0.1 Comparative Example 1-2 H-H1 H-E1 SP001 FD-A 0.5 Comparative Example 1-3 H-H1 H-E1 SP001 FD-A 1.5 Comparative Example 2 H-H1 H-E1 SP002 - - Example 2-1 H-H1 H-E1 SP002 FD1 0.1 Example 2-2 H-H1 H-E1 SP002 FD1 0.5 Example 2-3 H-H1 H-E1 SP002 FD1 1.5 Comparative Example 2-1 H-H1 H-E1 SP002 FD-A 0.1 Comparative Example 2-2 H-H1 H-E1 SP002 FD-A 0.5 Comparative Example 2-3 H-H1 H-E1 SP002 FD-A 1.5 Comparative Example 3 H-H1 H-E1 SP003 - - Example 3-1 H-H1 H-E1 SP003 FD2 1.5 Comparative Example 3-1 H-H1 H-E1 SP003 FD-B 1.5

<FD-A> <FD-B>

Evaluation Example 1: ΔE of compounds SP002 and SP003 _ST evaluation

The S ₁ and T ₁ energy levels of the compounds SP002 and SP003 were measured according to the method described in Table 8, and the results are shown in Table 9.

How to evaluate the T ₁ energy level Put a mixture of toluene and each compound (dissolve each compound to a concentration of 1x10 ^-4 M in 3 mL of toluene) into a quartz cell, then add liquid nitrogen (77 K) and use a photoluminescence measuring instrument to measure the photoluminescence. The on set T1 energy level is calculated by measuring the sense spectrum and comparing it with the normal room temperature photoluminescence spectrum and analyzing only the peak observed only at low temperature. S ₁ Energy Level Assessment Method The on set S1 energy level was calculated by measuring the photoluminescence spectrum of a mixture of toluene and each compound (diluted to a concentration of 1x10 ^-4 M) at room temperature using a photoluminescence measuring instrument and analyzing the observed peak.

Compound No. △E _ST (based on peak) △E _ST (based on onset) SP002 0.11 eV 0.15 eV SP003 0.329 eV 0.4 eV

Evaluation Example 2: Measurement of OLED lifetime and external quantum efficiency

(1) For each organic light emitting device manufactured in Comparative Example 1, Examples 1-1 to 1-3, and Comparative Examples 1-1 to 1-3, external quantum efficiency (EQE) and lifetime were evaluated, Each result is shown in FIGS. 4 to 7 .

First, referring to FIGS. 4 and 5 , in the case of Examples 1-1 to 1-3, some of the triplet excitons generated by the phosphorescent sensor SP001, which is a phosphorescence sensor, by FD1 are lost, and the efficiency compared to Comparative Example 1 Although this is slightly decreased, it can be seen that the lifespan is significantly increased.

On the other hand, referring to FIGS. 6 and 7 , in the case of Comparative Examples 1-1 to 1-3, the external quantum efficiency is significantly reduced compared to Examples 1-1 to 1-3 in which the dopant of the same content is included. , rather, the lifespan is significantly reduced compared to Comparative Example 1. This is because triplet excitons generated in SP001 through Dexter energy transfer do not contribute to light emission while being transferred to FD-A, and are deteriorated due to non-radiative decay.

(2) For each organic light emitting device prepared in Comparative Example 2, Examples 2-1 to 2-3, and Comparative Examples 2-1 to 2-3, external quantum efficiency (EQE) and lifetime were evaluated, Each result is shown in FIGS. 8 to 11 .

First, referring to FIGS. 8 and 9 , in the case of Examples 2-1 to 2-3, some of the triplet excitons generated in SP002, which is a TADF sensor, are lost by FD1, and the efficiency compared to Comparative Example 2 Although this is slightly decreased, it can be seen that the lifespan is significantly increased.

On the other hand, referring to FIGS. 10 and 11 , in the case of Comparative Examples 2-1 to 2-3, the decrease in external quantum efficiency is remarkable, even compared to Examples 2-1 to 2-3 in which the dopant of the same content is included. , rather, the lifespan is significantly reduced compared to Comparative Example 1. This is because triplet excitons generated in SP002 through Dexter energy transfer do not contribute to light emission while being transferred to FD-A, and are deteriorated due to non-radiative decay.

(3) For each organic light emitting device manufactured in Comparative Example 3, Example 3-1, and Comparative Example 3-1, external quantum efficiency (EQE) and lifetime were evaluated, and the respective results are shown in FIGS. 15 is shown.

First, referring to FIGS. 12 and 13 , in the case of Example 3-1, even though some of the triplet excitons generated in SP003, a TADF sensor, were lost by FD2, the maximum external quantum compared to Comparative Example 3 Efficiency (maximum external quantum efficiency (EQEmax)) increased. Furthermore, instead of minimizing TADF emission, as FD2 emits fluorescence to reduce exciton lifetime, the efficiency roll-off is greatly improved, and EQE is rather comparable at the actual brightness of 1000 cd/m ² . It can be seen that the increase compared to Example 3, it can be seen that the lifespan is significantly increased as described above.

On the other hand, referring to FIGS. 14 and 15 , in the case of Comparative Example 3-1, even compared to Example 3-1 including the dopant of the same content, the decrease in external quantum efficiency is remarkable, and the lifetime compared to Comparative Example 3 The increase is insignificant compared to Example 3-1. This is because triplet excitons generated in SP002 through Dexter energy transfer do not contribute to light emission while being transferred to FD-A, and are deteriorated due to non-radiative decay.

Evaluation Example 3: HOD measurement

(1) For Example 1-1, Comparative Example 1, and Comparative Example 1-1, a Hole Only Device (HOD) was manufactured without laminating an electron transport layer and an electron injection layer on the light emitting layer.

For this HOD device, the relative HOD value was measured by the method described herein, and is shown in FIG. 16 .

(2) For Example 2-1, Comparative Example 2, and Comparative Example 2-1, an HOD was prepared in the same manner as (1), and the relative HOD for this HOD device was performed by the method described herein. The values were measured and shown in FIG. 17 .

Claims (22)

a first compound, a second compound and a third compound;
The first compound, the second compound and the third compound are each different from each other,
The first compound satisfies one of the following <Condition 1> and <Condition 2>,
The second compound is a composition comprising a compound represented by Formula 1 below:
<Condition 1>
The first compound contains a transition metal
<Condition 2>
The difference between the triplet energy level of the first compound and the singlet energy level of the first compound is 0.4 eV or less, and the first compound is capable of emitting delayed fluorescence
<Formula 1>

In Formula 1, Ring A ₁ is a condensed cyclic group in which three or more cyclic groups are condensed with each other, wherein the cyclic group is a C ₅ -C ₃₀ carbocyclic group or a C ₁ -C ₃₀ heterocyclic group,
In Formula 1, L ₁ is a single bond, a C ₅ -C ₃₀ carbocyclic group unsubstituted or substituted with at least one R _10a , or C ₁ -C ₃₀ heterocyclic group unsubstituted or substituted with at least one R _10a click group,
In Formula 1, a1 is an integer of 1 to 5,
In Formula 1, R ₁ is a group represented by Formula 2 or Formula 3,
<Formula 2><Formula3>

In Formula 1, b1 is an integer of 3 to 10,
In Formulas 2 and 3, Ring A ₃ and Ring A ₄ are each independently a C ₅ -C ₃₀ carbocyclic group or a C ₁ -C ₃₀ heterocyclic group,
In Formulas 2 and 3, T ₃ and T ₄ are each independently a group represented by *-C(R ₅ )(R ₆ )(R ₇ ) or *-Si(R ₅ )(R ₆ )(R ₇ ) ego,
In Formulas 2 and 3, c3 and c4 are each independently an integer of 0 to 10, when c3 is 2 or more, 2 or more T ₃ are the same or different, and when c4 is 2 or more, 2 or more T ₄ are each other same or different,
In Formula 3, T ₁₁ is a single bond, O, S, N(R ₈ ), C(R ₈ )(R ₉ ), or Si(R ₈ )(R ₉ ),
In Formulas 1 to 3, R ₂ to R ₉ and R _10a are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , a hydroxyl group, a cyano group, a nitro group, or an amino group , amidino group, hydrazine group, hydrazone group, carboxylic acid group or salt thereof, sulfonic acid group or salt thereof, phosphoric acid group or salt thereof, substituted or unsubstituted C ₁ -C ₆₀ alkyl group, substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or an unsubstituted C ₆ -C ₆₀ aryloxy group, a substituted or unsubstituted C ₆ -C ₆₀ arylthio group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent non- Condensed aromatic polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₁ )(Q ₂ ), -Si(Q ₃ )(Q ₄ )(Q ₅ ), -Ge(Q) ₃ )(Q ₄ )(Q ₅ ), -B(Q ₆ )(Q ₇ ), -P(=O)(Q ₈ )(Q ₉ ) or -P(Q ₈ )(Q ₉ ),
In Formulas 1 to 3, b2 to b4 are each independently 0 to 10, when b2 is 2 or more, two or more R ₂ are the same or different, and when b3 is 2 or more, two or more R ₃ are the same or different, and when b4 is 2 or more, 2 or more R ₄ are the same as or different from each other,
said substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, Substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group and substituted monovalent non-aromatic condensed polycyclic group The substituent is
Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or a salt thereof, sulfonic acid or a salt thereof, phosphoric acid or a salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkyl a nyl group or a C ₁ -C ₆₀ alkoxy group;
Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or salt thereof, sulfonic acid or salt thereof, phosphoric acid or salt thereof, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, Condensed monovalent non-aromatic polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₁₁ )(Q ₁₂ ), -Si(Q ₁₃ )(Q ₁₄ )(Q ₁₅ ), -Ge(Q ₁₃ ) )(Q ₁₄ )(Q ₁₅ ), -B(Q ₁₆ )(Q ₁₇ ), -P(=O)(Q ₁₈ )(Q ₁₉ ), -P(Q ₁₈ )(Q ₁₉ ), or any thereof substituted with a combination of, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group or C ₁ -C ₆₀ alkoxy group;
Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or a salt thereof, sulfonic acid or a salt thereof, phosphoric acid or a salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkyl nyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₂₁ )(Q ₂₂ ), -Si(Q ₂₃ )(Q ₂₄ )(Q ₂₅ ), -Ge(Q ₂₃ )(Q ₂₄ )(Q ₂₅ ), -B(Q ₂₆ )(Q ₂₇ ) ), -P(=O)(Q ₂₈ )(Q ₂₉ ), -P(Q ₂₈ )(Q ₂₉ ), or at least one unsubstituted or substituted C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ aryl a thio group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group;
-N(Q ₃₁ )(Q ₃₂ ), -Si(Q ₃₃ )(Q ₃₄ )(Q ₃₅ ), -Ge(Q ₃₃ )(Q ₃₄ )(Q ₃₅ ), -B(Q ₃₆ )(Q ₃₇ ) ), -P(=O)(Q ₃₈ )(Q ₃₉ ) or -P(Q ₃₈ )(Q ₃₉ ); or
any combination thereof;
ego,
The Q ₁ to Q ₉ , Q ₁₁ to Q ₁₉ , Q ₂₁ to Q ₂₉ and Q ₃₁ to Q ₃₉ are each independently selected from the group consisting of hydrogen; heavy hydrogen; -F; -Cl; -Br; -I; hydroxyl group; cyano group; nitro group; amidino group; hydrazine group; hydrazone group; a carboxylic acid group or a salt thereof; a sulfonic acid group or a salt thereof; a phosphoric acid group or a salt thereof; a C ₁ -C ₆₀ alkyl group unsubstituted or substituted with deuterium, a C ₁ -C ₆₀ alkyl group, a C ₆ -C ₆₀ aryl group, or any combination thereof; C ₂ -C ₆₀ alkenyl group; C ₂ -C ₆₀ alkynyl group; C ₁ -C ₆₀ alkoxy group; C ₃ -C ₁₀ cycloalkyl group; C ₁ -C ₁₀ heterocycloalkyl group; C ₃ -C ₁₀ cycloalkenyl group; C ₁ -C ₁₀ heterocycloalkenyl group; a C ₆ -C ₆₀ aryl group unsubstituted or substituted with deuterium, a C ₁ -C ₆₀ alkyl group, a C ₆ -C ₆₀ aryl group, or any combination thereof; C ₆ -C ₆₀ aryloxy group; C ₆ -C ₆₀ arylthio group; C ₁ -C ₆₀ heteroaryl group; monovalent non-aromatic condensed polycyclic group; or a monovalent non-aromatic condensed heteropolycyclic group; According to claim 1,
Ring A ₁ in Formula 1 is an anthracene group, a phenalene group, a phenanthrene group, a tetracene group, a pyrene group, a chrysene group, a triphenylene group, a pentacene group, a perylene group, fluoranthene group, fluorene group, acridine group, phenanthridine group, phenazine group, phenoxazine group, phenothiazine group, xanthene group, carbazole group, dibenzofuran group and dibenzo A composition selected from the group of thiophenes. According to claim 1,
The compound represented by Formula 1 is a composition represented by one selected from the following Formulas 1-1 to 1-4:
<Formula 1-1>

<Formula 1-2>

<Formula 1-3><Formula1-4>

In Formulas 1-1 to 1-4,
R ₁₁ to R ₂₂ are each independently, *-(L ₁ ) _a1 -R _{1 A} group represented by a group, hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , a hydroxyl group, a cyano group , a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted a C ₂ -C ₆₀ alkenyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, a substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₁ )(Q ₂ ), -Si(Q ₃ )(Q ₄ )(Q ₅ ) , -Ge(Q ₃ )(Q ₄ )(Q ₅ ), -B(Q ₆ )(Q ₇ ), -P(=O)(Q ₈ )(Q ₉ ) or -P(Q ₈ )(Q ₉ ) and
In Formulas 1-1 and 1-4, at least three of R ₁₁ to R ₂₀ are the groups represented by *-(L ₁ ) _a1 -R ₁ ,
In Formulas 1-2 and 1-3, at least three of R ₁₁ to R ₂₂ are a group represented by the *-(L ₁ ) _a1 -R ₁ ,
said substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, Substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group and substituted monovalent non-aromatic condensed polycyclic group For the description of the substituents, see what is defined in claim 1. 4. The method of claim 3,
i) In Formula 1-1, at least three of R ₁₁ , R ₁₃ , R ₁₆ and R ₁₈ are a group represented by *-(L ₁ ) _a1 -R ₁ ;
ii) in Formula 1-2, at least three of R ₁₂ , R ₁₅ , R ₁₈ and R ₂₁ are a group represented by *-(L ₁ ) _a1 -R ₁ ;
iii) In Formula 1-3, at least three of R ₁₃ , R ₁₆ , R ₁₉ and R ₂₂ are a group represented by *-(L ₁ ) _a1 -R ₁ ;
iv) In Formula 1-4, at least three of R ₁₂ , R ₁₅ , R ₁₇ and R ₂₀ are a group represented by *-(L ₁ ) _a1 -R ₁ . According to claim 1,
In Formulas 2 and 3, the sum of c3 and c4 is 1 or more. According to claim 1,
In Formulas 2 and 3, R ₅ to R ₇ are each independently selected from -CH ₃ , -CD ₃ , -CD ₂ H, -CDH ₂ , a phenyl group, and a group represented by Formulas 9-1 to 9-19 Selected, composition:

In Formulas 9-1 to 9-19, * is a binding site with an adjacent atom. According to claim 1,
R ₁ of Formula 1 is selected from the group represented by Formulas 2-1 to 2-42 and 3-1 to 3-36, the composition:

In Formulas 2-1 to 2-42 and 3-1 to 3-36,
For the description of T ₃ , T ₄ , T ₁₁ , R ₃ and R ₄ , refer to the bar described in claim 1, respectively,
b32 and b42 are each independently selected from an integer of 0 to 2,
b33 and b43 are each independently selected from an integer of 0 to 3,
b34 and b44 are each independently selected from an integer of 0 to 4,
b35 and b45 are each independently selected from an integer of 0 to 5;
* is a binding site with a neighboring atom. According to claim 1,
The second compound is any one selected from the following compounds FD1 to FD12, a composition:

. According to claim 1,
The first compound is a composition comprising an organometallic compound represented by the following Chemical Formula 101:
<Formula 101>
M ₁₁ (L ₁₁ ) _n11 (L ₁₂ ) _n12
In Formula 101,
M ₁₁ is selected from a 1-period transition metal, a 2-period transition metal, and a 3-period transition metal;
L ₁₁ is a ligand represented by one selected from Formulas 101-1 to 101-4;
L ₁₂ is selected from a monodentate ligand and a bidentate ligand;
n11 is 1,
n12 is selected from 0, 1 and 2;

In Formulas 101-1 to 101-4,
A ₁₀₁ to A ₁₀₄ are each independently selected from a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group, a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group, and a non-cyclic group become,
Y ₁₀₁ to Y ₁₀₄ are each independently a chemical bond, O, S, N(R ₉₁ ), B(R ₉₁ ), P(R ₉₁ ) or C(R ₉₁ )(R ₉₂ ),
T ₁₀₁ to T ₁₀₄ are each independently a single bond, a double bond, *-N(R ₉₃ )-*', *-B(R ₉₃ )-*', *-P(R ₉₃ )-*', * -C(R ₉₃ )(R ₉₄ )-*', *-Si(R ₉₃ )(R ₉₄ )-*', *-Ge(R ₉₃ )(R ₉₄ )-*', *-S-*' , *-Se-*', *-O-*', *-C(=O)-*', *-S(=O)-*', *-S(=O) ₂ -*', * -C(R ₉₃ )=*', *=C(R ₉₃ )-*', *-C(R ₉₃ )=C(R ₉₄ )-*', *-C(=S)-*' and * -C≡C-*',
The substituent of the substituted C ₅ -C ₃₀ carbocyclic group, the substituent of the substituted C ₁ -C ₃₀ heterocyclic group, and R ₉₁ to R ₉₄ are independently of each other, hydrogen, deuterium, -F, -Cl, - Br, -I, -SF ₅ , a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, substituted or unsubstituted A substituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkynyl group, a substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ hetero Cycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -C(=O)(Q ₄₁ ), - S(=O)(Q ₄₁ ), -S(=O) ₂ (Q ₄₁ ), -N(Q ₄₂ )(Q ₄₃ ), -B(Q ₄₂ )(Q ₄₃ ), -Si(Q ₄₄ ) (Q ₄₅ )(Q ₄₆ ), -Ge(Q ₄₄ )(Q ₄₅ )(Q ₄₆ ), -P(=O)(Q ₄₇ )(Q ₄₈ ), -P(=S)(Q ₄₇ )( Q ₄₈ ), and -P(Q ₄₇ )(Q ₄₈ ), wherein the substituent of the substituted C ₅ -C ₃₀ carbocyclic group and the substituent of the substituted C ₁ -C ₃₀ heterocyclic group are selected from hydrogen no,
* ₁ , * ₂ , * ₃ and * ₄ are binding sites with M ₁₁ ,
Q ₄₁ to Q ₄₈ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₇ -C ₆₀ alkylaryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, C ₂ -C ₆₀ alkylheteroaryl group, C ₁ -C ₆₀ heteroaryloxy group, C ₁ -C ₆₀ heteroarylthio group, monovalent non-aromatic condensed polycyclic group, monovalent Condensed non-aromatic heteropolycyclic group, deuterium, -F, a cyano group, a C ₁ -C ₆₀ alkyl group substituted with at least one selected from a C ₁ -C ₆₀ alkyl group and a C ₆ -C ₆₀ aryl group, and a deuterium, -F, a cyano group , a C ₁ -C ₆₀ alkyl group and a C ₆ -C ₆₀ aryl group substituted with at least one selected from a C ₆ -C ₆₀ aryl group. According to claim 1,
The first compound is an organic light emitting device comprising a thermally activated delayed fluorescence emitter represented by any one of the following Chemical Formulas 201 or 202:
<Formula 201>

In Formula 201,
X ₂₀₁ to X ₂₀₃ are each independently B or N,
A ₂₀₁ to A ₂₀₅ are each independently a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group,
L ₂₀₁ to L ₂₀₅ are each independently a single bond, a C ₅ -C ₃₀ carbocyclic group unsubstituted or substituted with at least one R _200a , or C ₁ -C unsubstituted or substituted with at least one R _{200a 30} is a heterocyclic group,
a201 to a205 are each independently an integer of 1 to 5,
R ₂₀₁ to R ₂₀₅ , and R _200a are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, A hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, a substituted or an unsubstituted C ₂ -C ₆₀ alkynyl group, a substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, a substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, a substituted or unsubstituted C ₁ -C ₁₀ heterocyclo Alkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted C ₆ -C ₆₀ arylthio group, substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, Substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₅₁ )(Q ₅₂ ), -Si(Q ₅₃ )(Q ₅₄ )(Q ₅₅ ), -Ge(Q ₅₃ )(Q ₅₄ ) )(Q ₅₅ ), -B(Q ₅₆ )(Q ₅₇ ), -P(=O)(Q ₅₈ )(Q ₅₉ ) or -P(Q ₅₈ )(Q ₅₉ ),
b201 to b205 are each independently 0 to 10, when b201 is 2 or more, two or more R ₂₀₁ are the same or different from each other, and when b202 is 2 or more, two or more R ₂₀₂ are the same or different from each other, and b203 is When two or more, two or more R ₂₀₃ are the same or different from each other, when b204 is two or more, two or more R ₂₀₄ are the same or different from each other, and when b205 is two or more, two or more R ₂₀₅ are the same or different from each other,
<Formula 202>

A ₂₁₁ is a substituted or unsubstituted C ₅ -C ₃₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group,
W ₂₁₁ is an acceptor group,
D ₂₁₁ is a donor,
m211 is an integer selected from 1 to 4, n211 is an integer selected from 1 to 4;
R ₂₁₁ is hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ₅ , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or its A salt, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C ₁ -C ₆₀ alkyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkenyl group, a substituted or unsubstituted C ₂ -C ₆₀ alkynyl group , substituted or unsubstituted C ₁ -C ₆₀ alkoxy group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkyl group, substituted or unsubstituted C ₃ -C ₁₀ cycloalkenyl group, substituted or unsubstituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted or unsubstituted C ₆ -C ₆₀ aryl group, substituted or unsubstituted C ₆ -C ₆₀ aryloxy group, substituted or unsubstituted A substituted C ₆ -C ₆₀ arylthio group, a substituted or unsubstituted C ₁ -C ₆₀ heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic hetero group Condensed polycyclic group, -N(Q ₅₁ )(Q ₅₂ ), -Si(Q ₅₃ )(Q ₅₄ )(Q ₅₅ ), -Ge(Q ₅₃ )(Q ₅₄ )(Q ₅₅ ), -B(Q ₅₆ ) )(Q ₅₇ ), -P(=O)(Q ₅₈ )(Q ₅₉ ) or -P(Q ₅₈ )(Q ₅₉ ), and a plurality of R ₂₁₁ are optionally, bonded to each other, substituted or may form an unsubstituted C ₅ -C ₃₀ carbocyclic group or a substituted or unsubstituted C ₁ -C ₃₀ heterocyclic group,
said substituted C ₁ -C ₆₀ alkyl group, substituted C ₂ -C ₆₀ alkenyl group, substituted C ₂ -C ₆₀ alkynyl group, substituted C ₁ -C ₆₀ alkoxy group, substituted C ₃ -C ₁₀ cycloalkyl group, Substituted C ₁ -C ₁₀ heterocycloalkyl group, substituted C ₃ -C ₁₀ cycloalkenyl group, substituted C ₁ -C ₁₀ heterocycloalkenyl group, substituted C ₆ -C ₆₀ aryl group, substituted C ₆ -C ₆₀ aryloxy group, substituted C ₆ -C ₆₀ arylthio group, substituted C ₁ -C ₆₀ heteroaryl group, substituted monovalent non-aromatic condensed polycyclic group and substituted monovalent non-aromatic condensed polycyclic group The substituent is
Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or a salt thereof, sulfonic acid or a salt thereof, phosphoric acid or a salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkyl a nyl group or a C ₁ -C ₆₀ alkoxy group;
Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or salt thereof, sulfonic acid or salt thereof, phosphoric acid or salt thereof, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, Condensed monovalent non-aromatic polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₆₁ )(Q ₆₂ ), -Si(Q ₆₃ )(Q ₆₄ )(Q ₆₅ ), -Ge(Q ₆₃ ) )(Q ₆₄ )(Q ₆₅ ), -B(Q ₆₆ )(Q ₆₇ ), -P(=O)(Q ₆₈ )(Q ₆₉ ), -P(Q ₆₈ )(Q ₆₉ ), or any thereof substituted with a combination of, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkynyl group or C ₁ -C ₆₀ alkoxy group;
Deuterium, -F, -Cl, -Br, -I, -CD ₃ , -CD ₂ H, -CDH ₂ , -CF ₃ , -CF ₂ H, -CFH ₂ , hydroxyl group, cyano group, nitro group, Amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid or a salt thereof, sulfonic acid or a salt thereof, phosphoric acid or a salt thereof, C ₁ -C ₆₀ alkyl group, C ₂ -C ₆₀ alkenyl group, C ₂ -C ₆₀ alkyl nyl group, C ₁ -C ₆₀ alkoxy group, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ arylthio group, C ₁ -C ₆₀ heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q ₇₁ )(Q ₇₂ ), -Si(Q ₇₃ )(Q ₇₄ )(Q ₇₅ ), -Ge(Q ₇₃ )(Q ₇₄ )(Q ₇₅ ), -B(Q ₇₆ )(Q ₇₇ ) ), -P(=O)(Q ₇₈ )(Q ₇₉ ), -P(Q ₇₈ )(Q ₇₉ ), or at least one unsubstituted or substituted, C ₃ -C ₁₀ cycloalkyl group, C ₁ -C ₁₀ heterocycloalkyl group, C ₃ -C ₁₀ cycloalkenyl group, C ₁ -C ₁₀ heterocycloalkenyl group, C ₆ -C ₆₀ aryl group, C ₆ -C ₆₀ aryloxy group, C ₆ -C ₆₀ aryl a thio group, a C ₁ -C ₆₀ heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group;
-N(Q ₈₁ )(Q ₈₂ ), -Si(Q ₈₃ )(Q ₈₄ )(Q ₈₅ ), -Ge(Q ₈₃ )(Q ₈₄ )(Q ₈₅ ), -B(Q ₈₆ )(Q ₈₇ ) ), -P(=O)(Q ₈₈ )(Q ₈₉ ) or -P(Q ₈₈ )(Q ₈₉ ); or
any combination thereof; ego,
The Q ₅₁ to Q ₅₉ , Q ₆₁ to Q ₆₉ , Q ₇₁ to Q ₇₉ and Q ₈₁ to Q ₈₉ are each independently, independently of each other, hydrogen; heavy hydrogen; -F; -Cl; -Br; -I; hydroxyl group; cyano group; nitro group; amidino group; hydrazine group; hydrazone group; a carboxylic acid group or a salt thereof; a sulfonic acid group or a salt thereof; a phosphoric acid group or a salt thereof; a C ₁ -C ₆₀ alkyl group unsubstituted or substituted with deuterium, a C ₁ -C ₆₀ alkyl group, a C ₆ -C ₆₀ aryl group, or any combination thereof; C ₂ -C ₆₀ alkenyl group; C ₂ -C ₆₀ alkynyl group; C ₁ -C ₆₀ alkoxy group; C ₃ -C ₁₀ cycloalkyl group; C ₁ -C ₁₀ heterocycloalkyl group; C ₃ -C ₁₀ cycloalkenyl group; C ₁ -C ₁₀ heterocycloalkenyl group; a C ₆ -C ₆₀ aryl group unsubstituted or substituted with deuterium, a C ₁ -C ₆₀ alkyl group, a C ₆ -C ₆₀ aryl group, or any combination thereof; C ₆ -C ₆₀ aryloxy group; C ₆ -C ₆₀ arylthio group; C ₁ -C ₆₀ heteroaryl group; monovalent non-aromatic condensed polycyclic group; or a monovalent non-aromatic condensed heteropolycyclic group; 11. The method of claim 10,
W ₂₁₁ is a substituted or unsubstituted π electron deficient nitrogen-free cyclic group;
D ₂₁₁ is -F, a cyano group, a π-electron deficient nitrogen-containing cyclic group;
a C ₁ -C ₆₀ alkyl group, a π electron deficient nitrogen-containing cyclic group and a π electron deficient nitrogen-free cyclic group substituted with at least one selected from -F and a cyano group; and
deuterium, a C ₁ -C ₆₀ alkyl group, a π electron deficient nitrogen-containing cyclic group and a π electron deficient nitrogen-free cyclic group; a π-electron deficient nitrogen-containing cyclic group substituted with at least one selected from; is selected from;
The π electron deficient nitrogen-free cyclic group is a benzene group, a heptalene group, an indene group, a naphthalene group, an azulene group, an indacene group, an acenaphthylene group, a fluorene group, a spiro-bifluorene group , benzofluorene group, dibenzofluorene group, phenalene group, phenanthrene group, anthracene group, fluoranthene group, triphenylene group, pyrene group, chrysene group, naphthacene group, picene group, perylene group group, pentacene group, hexacene group, pentacene group, rubycene group, corogen group, ovalene group, pyrrole group, isoindole group, indole group, furan group, thiophene group, benzofuran group, benzothiophene group, benzocarbazole group, dibenzocarbazole group, dibenzofuran group, dibenzothiophene group, dibenzothiophene sulfone group, carbazole group, dibenzosilol group, indenocarbazole group, an indolocarbazole group, a benzofurocarbazole group, a benzothienocarbazole group and a triindolobenzene group; and a condensed ring of two or more of the π-electron deficient nitrogen-free cyclic groups; is selected from;
The π-electron deficient nitrogen-containing cyclic group is a cyclic group having at least one *-N=*' moiety, for example, an imidazole group, a pyrazole group, a thiazole group, an isothiazole group, and an oxa group. azole group, isoxazole group, pyridine group, pyrazine group, pyridazine group, pyrimidine group, indazole group, purine group, quinoline group, isoquinoline group, benzoquinoline group, phthalazine group, naphthyridine group , quinoxaline group, quinazoline group, cinoline group, phenanthridine group, acridine group, phenanthroline group, phenazine group, benzimidazole group, isobenzothiazole group, benzoxazole group, isobenzo Oxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyrimidine group, azacarbazole group, and benzimidazolobenzimi dazole; and a condensed ring of two or more of the π electron deficient nitrogen-containing cyclic groups; is selected from According to claim 1,
The third compound includes an amphoteric compound, an electron transporting compound and/or a hole transporting compound,
the electron-transporting compound comprises at least one electron-transporting moiety,
The hole-transporting compound does not include an electron-transporting moiety,
An organic light-emitting device, wherein the electron-transporting moiety is selected from a cyano group, a π-electron deficient nitrogen-containing cyclic group, and a group represented by one of the following formulas:

In the above formula, *, *', and *" each represent a binding site with an arbitrary neighboring atom. 13. The method of claim 12,
wherein the electron transporting compound comprises at least one π electron deficient nitrogen-free cyclic group and at least one electron transporting moiety;
wherein the hole transport compound comprises at least one π electron deficient nitrogen-free cyclic group and is free of electron transport moieties;
The electron-transporting moiety is a cyano group or a π-electron deficient nitrogen-containing cyclic group. 13. The method of claim 12,
The electron-transporting compound comprises i) at least one of a cyano group, a pyrimidine group, a pyrazine group and a triazine group, and ii) a triphenylene group,
The hole transporting compound includes a carbazole group, an organic light emitting device. According to claim 1,
A composition satisfying the following condition 3:
<Condition 3>
E _{HOMO_C1} - 0.4 eV ≤ E _{HOMO_C2} ≤ E _{HOMO_C1} + 0.1 eV
In condition 3, E _{HOMO_C1} is the HOMO energy level value of the first compound, and E _{HOMO_C2} is the HOMO energy level value of the second compound. According to claim 1,
A composition satisfying the following condition 4:
<Condition 4>
R(HOD) _H /R(HOD) ₀ ≤ 1.07
In condition 4, R(HOD) _H is the relative HOD value of the composition including the first compound, the second compound, and the third compound, and R(HOD) ₀ is the first compound and the third compound The relative HOD value of the composition. a first electrode;
a second electrode; and
an organic layer disposed between the first electrode and the second electrode and including a light emitting layer;
including,
The organic layer comprising the composition of any one of claims 1 to 16, an organic light emitting device. 18. The method of claim 17,
The composition is included in the light emitting layer, an organic light emitting device. 19. The method of claim 18,
The light emitting layer includes a sensor, a dopant, and a host,
The sensor includes a first compound in the composition,
The dopant includes a second compound in the composition,
The host comprises at least one third compound of the composition, an organic light emitting device. 19. The method of claim 18,
An organic light emitting device, wherein the light emitting layer emits blue light. a first electrode; a second electrode; m light emitting units disposed between the first electrode and the second electrode and including at least one light emitting layer; and
m-1 charge generation layers disposed between two light emitting units adjacent to each other among the m light emitting units and including an n-type charge generation layer and a p-type charge generation layer;
including,
Wherein m is an integer of 2 or more,
A maximum emission wavelength of light emitted from at least one of the m light emitting units is different from a maximum emission wavelength of light emitted from at least one of the remaining light emitting units,
The light emitting layer comprising the composition of any one of claims 1 to 16, an organic light emitting device. a first electrode; a second electrode; and m light emitting layers disposed between the first electrode and the second electrode. including,
Wherein m is an integer of 2 or more,
The maximum emission wavelength of light emitted from at least one emission layer among the m emission layers is different from the maximum emission wavelength of light emitted from at least one emission layer among the remaining emission layers,
The light emitting layer comprising the composition of any one of claims 1 to 16, an organic light emitting device.

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