JP6280346B2 - 遅延蛍光を示す有機電界発光デバイス - Google Patents
遅延蛍光を示す有機電界発光デバイス Download PDFInfo
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- JP6280346B2 JP6280346B2 JP2013229909A JP2013229909A JP6280346B2 JP 6280346 B2 JP6280346 B2 JP 6280346B2 JP 2013229909 A JP2013229909 A JP 2013229909A JP 2013229909 A JP2013229909 A JP 2013229909A JP 6280346 B2 JP6280346 B2 JP 6280346B2
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- 150000002367 halogens Chemical group 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 1
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000013086 organic photovoltaic Methods 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- AICOOMRHRUFYCM-ZRRPKQBOSA-N oxazine, 1 Chemical compound C([C@@H]1[C@H](C(C[C@]2(C)[C@@H]([C@H](C)N(C)C)[C@H](O)C[C@]21C)=O)CC1=CC2)C[C@H]1[C@@]1(C)[C@H]2N=C(C(C)C)OC1 AICOOMRHRUFYCM-ZRRPKQBOSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 238000000103 photoluminescence spectrum Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical class N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 150000004033 porphyrin derivatives Chemical class 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- Electroluminescent Light Sources (AREA)
Description
何ら理論に拘束されるものではないが、E−型遅延蛍光を生じるためには、発光材料が小さい一重項−三重項エネルギーギャップ(ΔES−T)を有する必要があると考えられている。金属を含有しない有機ドナー−アクセプター発光材料は、これを達成することができる。これらの材料の発光は、ドナー−アクセプター電荷移動(CT)型発光としてしばしば特徴付けられる。これらのドナー−アクセプター型化合物におけるHOMO及びLUMOの空間的分離がしばしばΔES−Tを小さくする。これらの状態は、CT状態に関与することがある。多くの場合、ドナー−アクセプター発光材料は、アミノ又はカルバゾール誘導体などの電子供与性部分と、N−含有6員芳香族環などの電子受容性部分とを連結することにより構築される。
なお、化合物1は、国際公開第2012/023947号パンフレットに記載の方法に従って合成した。
有機発光デバイス中の特定の層に有用として本明細書において記述されている材料は、デバイス中に存在する多種多様な他の材料と組み合わせて使用され得る。例えば、本明細書において開示されている化合物は、多種多様なホスト、輸送層、ブロッキング層、注入層、電極、及び存在し得る他の層と併せて使用され得る。以下で記述又は参照される材料は、本明細書において開示されている化合物と組み合わせて有用となり得る材料の非限定的な例であり、当業者であれば、組み合わせて有用となり得る他の材料を特定するための文献を容易に閲覧することができる。
HIL/HTL:
ホスト:
HBL:
110 基板
115 アノード
120 正孔注入層
125 正孔輸送層
130 電子ブロッキング層
135 発光層
140 正孔ブロッキング層
145 電子輸送層
150 電子注入層
155 保護層
160 カソード
162 第一の導電層
164 第二の導電層
200 反転させたOLED、デバイス
210 基板
215 カソード
220 発光層
225 正孔輸送層
230 アノード
Claims (14)
- 第1の有機発光デバイスを含む第1のデバイスであって、
アノードと、カソードと、前記アノードと前記カソードとの間に配置された、第1の発光ドーパントと第1のリン光発光材料を含む発光層とを更に含み、
前記第1のデバイスが、前記第1の有機発光デバイスに電圧が印加されたときに室温で白色光を発するものであり、
前記第1の発光ドーパントが、約530nm〜約580nmにピーク波長を有する黄色光を発するものであり、
前記第1の発光ドーパントは、下記の式を有する化合物を含むこと特徴とする第1のデバイス。
R1及びR4は、モノ−、ジ−、トリ−、テトラ置換又は無置換であることを表し;
R1、R2、R3、及びR4は、独立して、水素、重水素、ハライド、アルキル、シクロアルキル、ヘテロアルキル、アリールアルキル、アルコキシ、アリールオキシ、アミノ、シリル、アルケニル、シクロアルケニル、ヘテロアルケニル、アルキニル、アリール、ヘテロアリール、アシル、カルボニル、カルボン酸、エステル、ニトリル、イソニトリル、スルファニル、スルフィニル、スルフォニル、ホスフィノ及びこれらの組み合わせからなる群から選択され;
Ar1、Ar2、及びAr3は、独立して、アリール又はヘテロアリールから選択され、更に置換されていてもよく;
XはC又はNである。)
(但し、前記第1の発光ドーパントが、下記の化合物[44]、[45]、[50]、[59]、[60]、[65]、及び[224]からなる群から選択される化合物である場合を除く。)
- 第1の発光ドーパントが、遅延蛍光発光ドーパントである請求項1に記載の第1のデバイス。
- Ar1、Ar2、及びAr3が、更に置換されている請求項1に記載の第1のデバイス。
- Ar1、Ar2、及びAr3が、独立して、水素、アルキル、アルコキシ、アミノ、アルケニル、アルキニル、アリール、及びヘテロアリールからなる群から選択される置換基で更に置換されている(但し、前記置換基は、Ar1、Ar2、及びAr3に直接縮合したアリール又はヘテロアリールではない)請求項1に記載の第1のデバイス。
- Ar1及びAr2が、独立して、フェニル、ピリジン、及びナフタレンからなる群から選択される請求項1に記載の第1のデバイス。
- Ar3が、フェニル、ビフェニル、ジベンゾフラン、及びジベンゾチオフェンからなる群から選択される請求項1に記載の第1のデバイス。
- R1、R2、R3、及びR4が、水素である請求項1に記載の第1のデバイス。
- 化合物が、下記の化合物2から化合物90、及び化合物92から化合物184からなる群から選択される請求項1に記載の第1のデバイス。
- 発光層がホスト化合物を更に含む請求項1に記載の第1のデバイス。
- 発光層が第2のリン光発光材料を更に含む請求項1に記載の第1のデバイス。
- 第2の有機発光デバイスを含み;
前記第2の有機発光デバイスが第1の有機発光デバイスに積層されている請求項1に記載の第1のデバイス。 - 消費者製品である請求項1に記載の第1のデバイス。
- 有機発光デバイスである請求項1に記載の第1のデバイス。
- 照明パネルである請求項1に記載の第1のデバイス。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/674,696 US20140131665A1 (en) | 2012-11-12 | 2012-11-12 | Organic Electroluminescent Device With Delayed Fluorescence |
US13/674,696 | 2012-11-12 |
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JP2014096586A JP2014096586A (ja) | 2014-05-22 |
JP6280346B2 true JP6280346B2 (ja) | 2018-02-14 |
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CN105518103B (zh) * | 2013-09-11 | 2018-12-21 | 默克专利有限公司 | 有机电致发光器件 |
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WO2015178589A1 (ko) * | 2014-05-22 | 2015-11-26 | 삼성에스디아이 주식회사 | 유기 화합물, 조성물, 유기 광전자 소자 및 표시 장치 |
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JP6534250B2 (ja) * | 2014-09-03 | 2019-06-26 | 保土谷化学工業株式会社 | 遅延蛍光体用ホスト材料、有機発光素子および化合物 |
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CN105845831B (zh) * | 2015-01-30 | 2019-07-05 | 三星显示有限公司 | 有机发光装置 |
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WO2020231213A1 (ko) * | 2019-05-15 | 2020-11-19 | 주식회사 엘지화학 | 유기발광소자용 재료의 선별방법 |
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US20140131665A1 (en) | 2014-05-15 |
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TW201425310A (zh) | 2014-07-01 |
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