JP5901972B2 - 有機エレクトロルミネセンス素子 - Google Patents
有機エレクトロルミネセンス素子 Download PDFInfo
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- JP5901972B2 JP5901972B2 JP2011553303A JP2011553303A JP5901972B2 JP 5901972 B2 JP5901972 B2 JP 5901972B2 JP 2011553303 A JP2011553303 A JP 2011553303A JP 2011553303 A JP2011553303 A JP 2011553303A JP 5901972 B2 JP5901972 B2 JP 5901972B2
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- JP
- Japan
- Prior art keywords
- light emitting
- emitting layer
- layer
- aromatic
- organic electroluminescent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005401 electroluminescence Methods 0.000 title claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 83
- -1 NR 2 Inorganic materials 0.000 claims description 57
- 239000000463 material Substances 0.000 claims description 42
- 150000001875 compounds Chemical class 0.000 claims description 41
- 125000004432 carbon atom Chemical group C* 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 17
- 125000004122 cyclic group Chemical group 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 14
- 125000006615 aromatic heterocyclic group Chemical group 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 125000001424 substituent group Chemical group 0.000 claims description 11
- 150000003918 triazines Chemical class 0.000 claims description 11
- 150000008365 aromatic ketones Chemical class 0.000 claims description 9
- 239000003446 ligand Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- 229910052731 fluorine Inorganic materials 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 229910052805 deuterium Inorganic materials 0.000 claims description 5
- 125000002950 monocyclic group Chemical group 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 125000003367 polycyclic group Chemical group 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 4
- 125000000304 alkynyl group Chemical group 0.000 claims description 4
- 229940058303 antinematodal benzimidazole derivative Drugs 0.000 claims description 4
- 125000004429 atom Chemical group 0.000 claims description 4
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 4
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 claims description 3
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 claims description 3
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical group N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical class [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 3
- 239000012965 benzophenone Substances 0.000 claims description 3
- 238000007740 vapor deposition Methods 0.000 claims description 3
- 125000004198 2-fluorophenyl group Chemical group [H]C1=C([H])C(F)=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000004105 2-pyridyl group Chemical group N1=C([*])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000004180 3-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(F)=C1[H] 0.000 claims description 2
- OFDVABAUFQJWEZ-UHFFFAOYSA-N 3-pyridin-3-ylpyridine Chemical group C1=CN=CC(C=2C=NC=CC=2)=C1 OFDVABAUFQJWEZ-UHFFFAOYSA-N 0.000 claims description 2
- 125000003349 3-pyridyl group Chemical group N1=C([H])C([*])=C([H])C([H])=C1[H] 0.000 claims description 2
- MWVTWFVJZLCBMC-UHFFFAOYSA-N 4,4'-bipyridine Chemical group C1=NC=CC(C=2C=CN=CC=2)=C1 MWVTWFVJZLCBMC-UHFFFAOYSA-N 0.000 claims description 2
- 125000001255 4-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1F 0.000 claims description 2
- 125000000339 4-pyridyl group Chemical group N1=C([H])C([H])=C([*])C([H])=C1[H] 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 150000001454 anthracenes Chemical class 0.000 claims description 2
- 125000004104 aryloxy group Chemical group 0.000 claims description 2
- 125000006269 biphenyl-2-yl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C1=C(*)C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000006268 biphenyl-3-yl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C1=C([H])C(*)=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000000319 biphenyl-4-yl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C1=C([H])C([H])=C([*])C([H])=C1[H] 0.000 claims description 2
- 239000012159 carrier gas Substances 0.000 claims description 2
- 125000005553 heteroaryloxy group Chemical group 0.000 claims description 2
- 125000000623 heterocyclic group Chemical group 0.000 claims description 2
- 125000000040 m-tolyl group Chemical group [H]C1=C([H])C(*)=C([H])C(=C1[H])C([H])([H])[H] 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical class [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 claims description 2
- 125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 claims description 2
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 claims description 2
- 229910052698 phosphorus Chemical class 0.000 claims description 2
- 239000011574 phosphorus Chemical class 0.000 claims description 2
- 125000004307 pyrazin-2-yl group Chemical group [H]C1=C([H])N=C(*)C([H])=N1 0.000 claims description 2
- 125000004944 pyrazin-3-yl group Chemical group [H]C1=C([H])N=C(*)C([H])=N1 0.000 claims description 2
- 125000002206 pyridazin-3-yl group Chemical group [H]C1=C([H])C([H])=C(*)N=N1 0.000 claims description 2
- 125000004940 pyridazin-4-yl group Chemical group N1=NC=C(C=C1)* 0.000 claims description 2
- 125000000246 pyrimidin-2-yl group Chemical group [H]C1=NC(*)=NC([H])=C1[H] 0.000 claims description 2
- 125000004527 pyrimidin-4-yl group Chemical group N1=CN=C(C=C1)* 0.000 claims description 2
- 125000004528 pyrimidin-5-yl group Chemical group N1=CN=CC(=C1)* 0.000 claims description 2
- 238000004528 spin coating Methods 0.000 claims description 2
- 238000000859 sublimation Methods 0.000 claims description 2
- 230000008022 sublimation Effects 0.000 claims description 2
- 238000005092 sublimation method Methods 0.000 claims description 2
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims description 2
- 125000005309 thioalkoxy group Chemical group 0.000 claims description 2
- 150000003754 zirconium Chemical class 0.000 claims description 2
- 125000003785 benzimidazolyl group Chemical class N1=C(NC2=C1C=CC=C2)* 0.000 claims 3
- 125000003363 1,3,5-triazinyl group Chemical group N1=C(N=CN=C1)* 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000013522 chelant Substances 0.000 claims 1
- 150000004696 coordination complex Chemical class 0.000 claims 1
- 125000001792 phenanthrenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C=CC12)* 0.000 claims 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 150000003254 radicals Chemical class 0.000 description 24
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 14
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 12
- 125000001072 heteroaryl group Chemical group 0.000 description 11
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 10
- DXBHBZVCASKNBY-UHFFFAOYSA-N 1,2-Benz(a)anthracene Chemical compound C1=CC=C2C3=CC4=CC=CC=C4C=C3C=CC2=C1 DXBHBZVCASKNBY-UHFFFAOYSA-N 0.000 description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 239000002019 doping agent Substances 0.000 description 8
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 8
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 8
- 150000004982 aromatic amines Chemical class 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 7
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 6
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 6
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 description 6
- 125000005842 heteroatom Chemical group 0.000 description 6
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 6
- 238000005424 photoluminescence Methods 0.000 description 6
- 150000001340 alkali metals Chemical class 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 5
- 150000002576 ketones Chemical class 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 125000005504 styryl group Chemical group 0.000 description 5
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 4
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 4
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001556 benzimidazoles Chemical class 0.000 description 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- BPMFPOGUJAAYHL-UHFFFAOYSA-N 9H-Pyrido[2,3-b]indole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=N1 BPMFPOGUJAAYHL-UHFFFAOYSA-N 0.000 description 3
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 3
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 3
- 239000004305 biphenyl Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 2
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 2
- TZMSYXZUNZXBOL-UHFFFAOYSA-N 10H-phenoxazine Chemical compound C1=CC=C2NC3=CC=CC=C3OC2=C1 TZMSYXZUNZXBOL-UHFFFAOYSA-N 0.000 description 2
- UWRZIZXBOLBCON-UHFFFAOYSA-N 2-phenylethenamine Chemical compound NC=CC1=CC=CC=C1 UWRZIZXBOLBCON-UHFFFAOYSA-N 0.000 description 2
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 2
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- 101100445050 Caenorhabditis elegans elt-2 gene Proteins 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 2
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 2
- LBWODEDBUKZKFS-UHFFFAOYSA-N [Li].N1=C(C(=O)O)C(C(=O)O)=CC=C1 Chemical compound [Li].N1=C(C(=O)O)C(C(=O)O)=CC=C1 LBWODEDBUKZKFS-UHFFFAOYSA-N 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- YUENFNPLGJCNRB-UHFFFAOYSA-N anthracen-1-amine Chemical compound C1=CC=C2C=C3C(N)=CC=CC3=CC2=C1 YUENFNPLGJCNRB-UHFFFAOYSA-N 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- 125000005605 benzo group Chemical group 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
- 150000001716 carbazoles Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- TXCDCPKCNAJMEE-UHFFFAOYSA-N dibenzofuran Chemical compound C1=CC=C2C3=CC=CC=C3OC2=C1 TXCDCPKCNAJMEE-UHFFFAOYSA-N 0.000 description 2
- IYYZUPMFVPLQIF-UHFFFAOYSA-N dibenzothiophene Chemical compound C1=CC=C2C3=CC=CC=C3SC2=C1 IYYZUPMFVPLQIF-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000005525 hole transport Effects 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical class [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 2
- RDOWQLZANAYVLL-UHFFFAOYSA-N phenanthridine Chemical compound C1=CC=C2C3=CC=CC=C3C=NC2=C1 RDOWQLZANAYVLL-UHFFFAOYSA-N 0.000 description 2
- 229950000688 phenothiazine Drugs 0.000 description 2
- BUAWIRPPAOOHKD-UHFFFAOYSA-N pyrene-1,2-diamine Chemical compound C1=CC=C2C=CC3=C(N)C(N)=CC4=CC=C1C2=C43 BUAWIRPPAOOHKD-UHFFFAOYSA-N 0.000 description 2
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 2
- XSCHRSMBECNVNS-UHFFFAOYSA-N quinoxaline Chemical compound N1=CC=NC2=CC=CC=C21 XSCHRSMBECNVNS-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 125000006413 ring segment Chemical group 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 2
- 235000021286 stilbenes Nutrition 0.000 description 2
- 150000003462 sulfoxides Chemical class 0.000 description 2
- 229930192474 thiophene Natural products 0.000 description 2
- 125000005259 triarylamine group Chemical group 0.000 description 2
- 150000003751 zinc Chemical class 0.000 description 2
- UWRZIZXBOLBCON-VOTSOKGWSA-N (e)-2-phenylethenamine Chemical class N\C=C\C1=CC=CC=C1 UWRZIZXBOLBCON-VOTSOKGWSA-N 0.000 description 1
- ICPSWZFVWAPUKF-UHFFFAOYSA-N 1,1'-spirobi[fluorene] Chemical compound C1=CC=C2C=C3C4(C=5C(C6=CC=CC=C6C=5)=CC=C4)C=CC=C3C2=C1 ICPSWZFVWAPUKF-UHFFFAOYSA-N 0.000 description 1
- HQDYNFWTFJFEPR-UHFFFAOYSA-N 1,2,3,3a-tetrahydropyrene Chemical compound C1=C2CCCC(C=C3)C2=C2C3=CC=CC2=C1 HQDYNFWTFJFEPR-UHFFFAOYSA-N 0.000 description 1
- ZFXBERJDEUDDMX-UHFFFAOYSA-N 1,2,3,5-tetrazine Chemical compound C1=NC=NN=N1 ZFXBERJDEUDDMX-UHFFFAOYSA-N 0.000 description 1
- FNQJDLTXOVEEFB-UHFFFAOYSA-N 1,2,3-benzothiadiazole Chemical compound C1=CC=C2SN=NC2=C1 FNQJDLTXOVEEFB-UHFFFAOYSA-N 0.000 description 1
- UGUHFDPGDQDVGX-UHFFFAOYSA-N 1,2,3-thiadiazole Chemical compound C1=CSN=N1 UGUHFDPGDQDVGX-UHFFFAOYSA-N 0.000 description 1
- HTJMXYRLEDBSLT-UHFFFAOYSA-N 1,2,4,5-tetrazine Chemical compound C1=NN=CN=N1 HTJMXYRLEDBSLT-UHFFFAOYSA-N 0.000 description 1
- BBVIDBNAYOIXOE-UHFFFAOYSA-N 1,2,4-oxadiazole Chemical compound C=1N=CON=1 BBVIDBNAYOIXOE-UHFFFAOYSA-N 0.000 description 1
- UDGKZGLPXCRRAM-UHFFFAOYSA-N 1,2,5-thiadiazole Chemical compound C=1C=NSN=1 UDGKZGLPXCRRAM-UHFFFAOYSA-N 0.000 description 1
- UUSUFQUCLACDTA-UHFFFAOYSA-N 1,2-dihydropyrene Chemical compound C1=CC=C2C=CC3=CCCC4=CC=C1C2=C43 UUSUFQUCLACDTA-UHFFFAOYSA-N 0.000 description 1
- FKASFBLJDCHBNZ-UHFFFAOYSA-N 1,3,4-oxadiazole Chemical compound C1=NN=CO1 FKASFBLJDCHBNZ-UHFFFAOYSA-N 0.000 description 1
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- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- YGPLLMPPZRUGTJ-UHFFFAOYSA-N truxene Chemical compound C1C2=CC=CC=C2C(C2=C3C4=CC=CC=C4C2)=C1C1=C3CC2=CC=CC=C21 YGPLLMPPZRUGTJ-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000002061 vacuum sublimation Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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Description
電子輸送層1の好ましい層厚は、3nmから20nmの範囲内にある。
上式では、以下が使用されている記号に適用する。
Arは、出現毎に、同一であるか異なり、各場合で1つまたは複数の基R1で置換されてよい、5個から60個の芳香族環原子を有する芳香族環系または芳香族複素環系である。
R1は、出現毎に、同一であるか異なり、それぞれが1つまたは複数のラジカルR2で置換されてよい、1から40個のC原子を有するH、D、F、Cl、Br、I、CHO、C(=O)Ar1、P(=O)(Ar1)2、S(=O)Ar1、S(=O)2Ar1、CR2=CR2Ar1、CN、NO2、Si(R2)3、B(OR2)2、B(R2)2、B(N(R2)2)2、OSO2R2、直鎖アルキル、アルケニル、アルキニル、アルコキシまたはチオアルコキシ基、あるいは3から40個のC原子を有する分岐または環式アルキル、アルケニル、アルキニル、アルコキシまたはチオアルコキシ基であり、1つまたは複数の非隣接CH2基は、R2C=CR2、 C≡C、Si(R2)2、Ge(R2)2、Sn(R2)2、C=O、C=S、C=Se、C=NR2、P(=O)(R2)、SO、SO2、NR2、O、SまたはCONR2で置換されてよく、1個または複数のH原子はD、F、Cl、Br、I、CNまたはNO2、あるいは各場合で1個または複数のラジカルR2で置換されてよい、5〜60個の芳香族環原子を有する芳香族環系または芳香族複素環系、あるいは1個または複数のラジカルR2で置換されてよい、5〜60個の芳香族環原子を有するアリールオキシ基またはヘテロアリールオキシ基、あるいはこれらの系の組み合わせで置換されてよい。また、ここでは、2個以上の隣接置換基R1も互いに単環系または多環系、脂肪族環系または芳香族環系を形成してもよい。
Ar1は、出現毎に、同一であるか異なり、1個または複数のラジカルR2で置換されてよい、5〜40個の芳香族環原子を有する芳香族環系または芳香族複素環系である。
R2は、出現毎に、同一であるか異なり、H原子がFで置換されてよい、1〜20C原子を有するH、D、CNまたは脂肪族ラジカル、芳香族および/または芳香族複素炭化水素基である。ここでは、2個以上の隣接置換基R2が、互いに単環系または多環系、脂肪族環系、または芳香族環系を形成してもよい。
上式では、R1は、上記に示された意味をもち、以下が使用されている他の記号に適用される。
Ar2は、出現毎に同一であるか異なり、各場合で1個または複数のラジカルR1で置換されてよい、5〜60個の芳香族環原子を有する一価の芳香族環系または芳香族複素環系である。
Ar3は、1個または複数のラジカルR1で置換されてよい、5〜60個の芳香族環原子を有する二価の芳香族環系または芳香族複素環系である。
上式では、R1は、上述したのと同じ意味をもち、破線の化学結合はトリアジンユニットへの連結を表し、さらに
Xは、出現毎に同一であるか異なり、B(R1)、C(R1)2、Si(R1)2、C=O、C=NR1、C=C(R1)2、O、S、S=O、SO2、N(R1)、P(R1)およびP(=O)R1から選択される二価橋である。
mは、出現毎に、同一であるか異なり0、1、2または3である。
Oは、出現毎に、同一であるか異なり0、1、2、3または4である。
Ar4、Ar6 は、出現毎に、同一であるか異なり、1個または複数のラジカルR1で置換されてよい、5〜18この芳香族環原子を有するアリールまたはヘテロアリール基である。
Ar5は、1個または複数のラジカルR1で置換されてよい、10〜18この芳香族環原子を有する縮合アリールまたはヘテロアリール基である。
p、rは、出現毎に同一であるか異なり、0、1または2、好ましくは0または2である。
上式では、使用されている記号および添字は、上述と同じ意味をもつ。ここではXは好ましくは、同一であるか異なり、C(R1)2、N(R1)、OおよびS、特に好ましくはC(R1)2から選択される。
上式では、使用されている記号および添字は上述と同じ意味をもち、破線の結合は2つのトリアジンユニットへの連結を表す。
上式では、使用されている記号および添字は上述と同じ意味をもつ。ここでは、Xは好ましくは、同一であるか異なりC(R1)2、N(R1)、OおよびS、特に好ましくはC(R1)2から選択される。
上式では、R1は式(1)について上述されたのと同じ意味をもち、以下が使用されている他の記号に適用する。
DCyは、出現毎に同一であるか異なり、少なくとも1個のドナー原子、好ましくは窒素、それを介して環式基が金属に結合されるカルベンまたはリンの形をとる炭素を含み、代わりに1個または複数の置換基R1を運んでよい環式基である。DCy基およびCCy基は、共有結合を介して互いと結合される。
CCyは、出現毎に同一であるか異なり、それを介して環式基が金属に結合され、代わりに1個または複数の置換基R1を運んでよい炭素原子を含む環式基である。
Aは、出現毎に同一であるか異なり、モノアニオンまたは二座キレート配位子、好ましくはジケトナート配位子である。
(例)
本発明によるエレクトロルミネセンス素子は、一般に、たとえば国際公開第05/003253号に説明されるように生成できる。使用される物質の構造は、明確にするために以下に示される。
多様な白色OLEDの結果が以下に比較される。エミッタ層に隣接する電子伝導体層は、以下のETL1と呼ばれ、陰極に近い方のものはETL2と呼ばれる。
本発明による例1a、例1b、および例1cは、以下の層構造を通して達成される。20nmのHIM、20nmのNPB、15%のTERでドープされた20nmのNPB、70%のTMM、10%のSK、および20%のIrppyから成る10nmの混合層、5%のBDでドープされる25nmのBH、5nm(1a)または10nm(1b)または15nm(1c)のSK、25nmのETM、1nmのLiF、100nmのAl。
例は、ここでは、400cd/m2および4000cd/m2での色座標の比較によって測定される輝度での色ずれが、SKから成る本発明によるETL1層の厚さを変えることによって特に調整できることを示す。OLEDには、10nmですでに大幅に減少した、輝度が15nmで増加する大幅な黄色のずれがある。5nmの層厚を使用することにより、OLEDは実質上色ずれなしで動作できるようになる。
25nmの代わりに15nmであるELT2層の層厚とは別に、例2は例1cと同じ層構造を通して達成される。例1cの例2の比較は、ELT2の層厚の変化により、色ずれの大幅な削減または変化を達成できないことを示す。例1に示されるように、これは本発明によるETL1の変化によってだけ可能である。
比較例3a、3b、および3cは、以下の層構造によって達成される。
20nmのHIM、20nmのNPB、15%のTERでドープされた20nmのNPB、70%のTMM、10%のSK、および20%のIrppyから成る10nmの混合層、5%のBDでドープされた25nmのBH、20nm(3a)または30nm(3b)または40nm(3c)のETM、1nmのLiF、100nmのAl
Claims (12)
- 陽極、黄色発光層、オレンジ色発光層または赤色発光層、青色発光層、および陰極をこの順序で備える有機エレクトロルミネセンス素子であって、前記エレクトロルミネセンス素子が少なくとも3つの発光層を有し、前記青色発光層に隣接する少なくとも1つの電子輸送層1、および陰極または電子注入層に隣接する電子輸送層2が、前記青色発光層と前記陰極の間に導入され、
電子輸送層1の物質が式(1)の芳香族ケトンであり、
Arは、出現毎に同一であるか異なり、各場合に1つまたは複数の基R1で置換されてよい5〜60個の芳香族環原子を有する芳香族環系または芳香族複素環系であり、
R1は、出現毎に、同一であるか異なり、それぞれが1つまたは複数のラジカルR2で置換
されてよい、1から40個のC原子を有するH、D、F、Cl、Br、I、CHO、C(=O)Ar1、P(=O)(Ar1)2、S(=O)Ar1、S(=O)2Ar1、CR2=CR2Ar1、CN、NO2、Si(R2)3、B(OR2)2、B(R2)2、B(N(R2)2)2、OSO2R2、直鎖アルキル、アルケニル、アルキニル、アルコキシまたはチオアルコキシ基、あるいは3から40個のC原子を有する分岐または環式アルキル、アルケニル、アルキニル、アルコキシまたはチオアルコキシ基であり、1つまたは複数の非隣接CH2基は、R2C=CR2、C≡C、Si(R2)2、Ge(R2)2、Sn(R2)2、C=O、C=S、C=Se、C=NR2、P(=O)(R2)、SO、SO2、NR2、O、SまたはCONR2で置換されてよく、1個または複数のH原子はD、F、Cl、Br、I、CNまたはNO2、あるいは各場合で1個または複数のラジカルR2で置換されてよい、5〜60個の芳香族環原子を有する芳香族環系または芳香族複素環系、あるいは1個または複数のラジカルR2で置換されてよい、5〜60個の芳香族環原子を有するアリールオキシ基またはヘテロアリールオキシ基、あるいはこれらの系の組み合わせで置換されてよく、また、ここでは、2個以上の隣接置換基R1も互いに単環系または多環系、脂肪族環系または芳香族環系を形成してもよく、
Ar1は、出現毎に、同一であるか異なり、1個または複数のラジカルR2で置換されてよい、5〜40個の芳香族環原子を有する芳香族環系または芳香族複素環系であり、
R2は、出現毎に、同一であるか異なり、H原子がFで置換されてよい、1〜20C原子を有するH、D、CNまたは脂肪族ラジカル、芳香族および/または芳香族複素炭化水素基である。ここでは、2個以上の隣接置換基R2が、互いに単環系または多環系、脂肪族環系、または芳香族環系を形成してもよく、
あるいは電子輸送層1のための前記物質が、式(2)または(3)のトリアジン誘導体で
あり、
Ar2は、出現毎に同一であるか異なり、各場合で1個または複数のラジカルR1で置換されてよい、5〜60個の芳香族環原子を有する一価の芳香族環系または芳香族複素環系であり、
Ar3は、1個または複数のラジカルR1で置換されてよい、5〜60個の芳香族環原子を有する二価の芳香族環系または芳香族複素環系である、
有機エレクトロルミネセンス素子。 - 前記エレクトロルミネセンス素子が、0.28/0.29から0.45/0.41の範
囲のCIE色座標を有する白色光を発光する、請求項1に記載の有機エレクトロルミネセンス素子。 - 前記素子は、3つの発光層の1つが赤色発光層またはオレンジ色発光層であり、前記層の1つが緑色発光層であり、前記赤色発光層またはオレンジ色発光層が好ましくは、前記陽極側にあり、前記緑色発光層が前記赤色発光層またはオレンジ色発光層と前記青色発光層の間にある、請求項1または2に記載の有機エレクトロルミネセンス素子。
- 前記電子輸送層1の層厚が3〜20nmの範囲である、請求項1から3のうちの1つに有機エレクトロルミネセンス素子。
- 前記青色発光層にじかに隣接する前記電子輸送層1が、芳香族ケトン、芳香族ホスフィンオキシド、芳香族スルホキシド、芳香族スルホン、トリアジン誘導体、金属錯体、特にアルミニウムまたは亜鉛錯体、アントラセン誘導体、ベンズイミダゾール誘導体、金属ベンズイミダゾール誘導体または金属ヒドロキシキノリン錯体を含む、請求項1から4のうちの1つに記載の有機エレクトロルミネセンス素子。
- 式(1)でカルボニル基に結合されるAr基が、それぞれが1個または複数のラジカルR1で置換されてよい、フェニル、2-、3-、または4-トリル、3‐または4‐o-キシリル、2‐または4‐m-キシリル、2‐p-キシリル、o‐、m‐、またはp‐tert-ブチルフェニル、o‐、m‐、またはp‐フルオロフェニル、ベンゾフェノン、1‐、2‐、または3‐フェニルメタノン、2‐、3‐、または4‐ビフェニル、2‐、3‐、または4‐o-テルフェニル、2‐、3‐、または4‐m-テルフェニル、2‐、3‐、または4‐p-テルフェニル、2'-p-テルフェニル、2'‐、4'-、または5'-m-テルフェニル、3'-または4'-o-テルフェニル、p‐、m,p‐、o,p‐、m,m‐、o,m‐、またはo,o-クオターフェニル、キンキフェニル、セキシフェニル、1‐、2‐、3‐、または4‐フルオレニル、2‐、3‐、または4‐スピロ-9,9'-ビフルオレニル、1‐、2‐、3‐、または4‐(9,10-ジヒドロ)フェナンスレニル、1‐、または2‐ナフチル、2‐、3‐、4‐、5‐、6‐、7‐、または8‐キノリニル、1‐、3‐、4‐、5‐、6‐、7‐、または8‐イソキノリニル、1‐、または2‐(4-メチルナフチル)、1‐または2‐(4-フェニルナフチル)、1‐または2‐(4-ナフチルナフチル)、1‐、2‐、または3‐(4-ナフチルフェニル)、2‐、3‐、または4‐ピリジル、2‐、4‐、または5‐ピリミジニル、2‐、または3‐ピラジニル、3‐、または4‐ピリダジニル、2‐(1,3,5-トリアジ)ニル、2‐、3‐、または4‐(フェニルピリジル)、3‐、4‐、5‐、または6‐(2,2'-ビピリジル)、2‐、4‐、5‐、または6‐(3,3'-ビピリジル)、2‐、または3‐(4,4'-ビピリジル)およびこれらのラジカルの1つまたは複数の組み合わせである、請求項5に記載の有機エレクトロルミネセンス素子。
- 前記陰極または前記電子注入層にじかに隣接する前記電子輸送層2が、アルミニウム錯
体、ジルコニウム錯体、ベンズイミダゾール誘導体、およびトリアジン誘導体から成るグ
ループから選択される物質を備える、請求項1から6のうちの1つに記載の有機エレクトロルミネセンス素子。 - 前記黄色発光層または前記赤色発光層、および/または前記緑色発光層が燐光層であり
、前記青色発光層が、各場合に、蛍光層または燐光層である場合がある、請求項1から7
のうちの1つに記載の有機エレクトロルミネセンス素子。 - 前記燐光エミッタが、式(31)から(34)の前記化合物から選択され、
DCyは、出現毎に同一であるか異なり、少なくとも1個のドナー原子、好ましくは窒素、それを介して環式基が金属に結合されるカルベンまたはリンの形をとる炭素を含み、代わりに1個または複数の置換基R1を運んでよい環式基である。DCy基およびCCy基は、共有結合を介して互いと結合され、
CCyは、出現毎に同一であるか異なり、それを介して環式基が金属に結合され、代わりに1個または複数の置換基R1を運んでよい炭素原子を含む環式基であり、
Aは、出現毎に同一であるか異なり、モノアニオンまたは二座キレート配位子、好ましく
はジケトナート配位子である、請求項8に記載の有機エレクトロルミネセンス素子。 - 少なくとも1つの発光層の前記燐光エミッタのために使用される前記基質が、正孔伝導基質物質および電子伝導基質物質の混合物である、請求項8または9に記載の有機エレクトロルミネセンス素子。
- 1つまたは複数の層が、昇華プロセスによって、OVPD(有機気相堆積)プロセスに
よって、または搬送ガス昇華を活用して、例えばスピンコーティングによって、または任
意の所望されるプリントプロセスによって溶液から生成される、請求項1から10のうち
の1つに記載の有機エレクトロルミネセンス素子の生成のためのプロセス。 - 請求項1記載の白色発光有機エレクトロルミネセンス素子のカラーポイントの輝度依存性を削減するためのプロセスであって、発光層のじかに隣接する前記層の層厚が、前記カラーポイントの前記輝度依存性が所望の値を採用するように調整されるプロセス。
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2009
- 2009-03-09 DE DE102009012346.6A patent/DE102009012346B4/de active Active
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2010
- 2010-02-12 WO PCT/EP2010/000886 patent/WO2010102706A1/de active Application Filing
- 2010-02-12 CN CN201510160748.2A patent/CN104851982A/zh active Pending
- 2010-02-12 JP JP2011553303A patent/JP5901972B2/ja active Active
- 2010-02-12 KR KR1020117016126A patent/KR101700975B1/ko active IP Right Grant
- 2010-02-12 US US13/147,186 patent/US20110284831A1/en not_active Abandoned
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3246963B1 (en) * | 2016-04-29 | 2023-05-31 | Samsung Display Co., Ltd. | Organic light-emitting device |
Also Published As
Publication number | Publication date |
---|---|
CN104851982A (zh) | 2015-08-19 |
CN102292841A (zh) | 2011-12-21 |
US20150155514A1 (en) | 2015-06-04 |
TW201101923A (en) | 2011-01-01 |
CN102292841B (zh) | 2016-09-07 |
KR101700975B1 (ko) | 2017-01-31 |
US20110284831A1 (en) | 2011-11-24 |
DE102009012346B4 (de) | 2024-02-15 |
KR20110134377A (ko) | 2011-12-14 |
JP2012519944A (ja) | 2012-08-30 |
TWI601446B (zh) | 2017-10-01 |
DE102009012346A1 (de) | 2010-09-16 |
WO2010102706A1 (de) | 2010-09-16 |
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