JP2009507064A - 縮合5員環を有する三重項発光体 - Google Patents
縮合5員環を有する三重項発光体 Download PDFInfo
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- JP2009507064A JP2009507064A JP2008529637A JP2008529637A JP2009507064A JP 2009507064 A JP2009507064 A JP 2009507064A JP 2008529637 A JP2008529637 A JP 2008529637A JP 2008529637 A JP2008529637 A JP 2008529637A JP 2009507064 A JP2009507064 A JP 2009507064A
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- 150000001875 compounds Chemical class 0.000 claims abstract description 64
- 125000005842 heteroatom Chemical group 0.000 claims description 32
- 125000001424 substituent group Chemical group 0.000 claims description 27
- 125000003118 aryl group Chemical group 0.000 claims description 25
- 125000004429 atom Chemical group 0.000 claims description 22
- 239000003446 ligand Substances 0.000 claims description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims description 20
- 229920006395 saturated elastomer Polymers 0.000 claims description 17
- -1 methylene, substituted Methylene Chemical group 0.000 claims description 16
- 230000005525 hole transport Effects 0.000 claims description 15
- 125000001261 isocyanato group Chemical group *N=C=O 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 229910052794 bromium Inorganic materials 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 229910052731 fluorine Inorganic materials 0.000 claims description 8
- 229910052740 iodine Inorganic materials 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- SIOXPEMLGUPBBT-UHFFFAOYSA-N picolinic acid Chemical compound OC(=O)C1=CC=CC=N1 SIOXPEMLGUPBBT-UHFFFAOYSA-N 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- JECYNCQXXKQDJN-UHFFFAOYSA-N 2-(2-methylhexan-2-yloxymethyl)oxirane Chemical compound CCCCC(C)(C)OCC1CO1 JECYNCQXXKQDJN-UHFFFAOYSA-N 0.000 claims description 6
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 125000001118 alkylidene group Chemical group 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 6
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- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 6
- 125000004185 ester group Chemical group 0.000 claims description 6
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 6
- 229910052741 iridium Inorganic materials 0.000 claims description 6
- AHHWIHXENZJRFG-UHFFFAOYSA-N oxetane Chemical compound C1COC1 AHHWIHXENZJRFG-UHFFFAOYSA-N 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 6
- 229910052702 rhenium Inorganic materials 0.000 claims description 6
- 229910052707 ruthenium Inorganic materials 0.000 claims description 6
- 229910052711 selenium Inorganic materials 0.000 claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 125000001651 cyanato group Chemical group [*]OC#N 0.000 claims description 5
- 229910052762 osmium Inorganic materials 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
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- 229910005965 SO 2 Inorganic materials 0.000 claims description 3
- 239000000412 dendrimer Substances 0.000 claims description 3
- 229920000736 dendritic polymer Polymers 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 claims description 2
- BPSNETAIJADFTO-UHFFFAOYSA-M 2-pyridin-2-ylacetate Chemical compound [O-]C(=O)CC1=CC=CC=N1 BPSNETAIJADFTO-UHFFFAOYSA-M 0.000 claims description 2
- 229920001281 polyalkylene Polymers 0.000 claims description 2
- 238000007639 printing Methods 0.000 claims description 2
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- 238000005229 chemical vapour deposition Methods 0.000 claims 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000005240 physical vapour deposition Methods 0.000 claims 2
- PVMLJDLTWMGZAH-UHFFFAOYSA-N 2-(1h-1,2,4-triazol-5-yl)pyridine Chemical compound N1C=NC(C=2N=CC=CC=2)=N1 PVMLJDLTWMGZAH-UHFFFAOYSA-N 0.000 claims 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims 1
- 238000007598 dipping method Methods 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 claims 1
- 150000002367 halogens Chemical class 0.000 claims 1
- 239000012044 organic layer Substances 0.000 claims 1
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- 238000004544 sputter deposition Methods 0.000 claims 1
- 238000007740 vapor deposition Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 20
- 239000002184 metal Substances 0.000 abstract description 20
- 125000002524 organometallic group Chemical group 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical class [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
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- 238000004440 column chromatography Methods 0.000 description 5
- 238000001194 electroluminescence spectrum Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 239000007983 Tris buffer Substances 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- MCEVSYSOEADPPV-UHFFFAOYSA-N iridium(3+) 2-methylbenzo[e][1,3]benzothiazole Chemical compound [Ir+3].[Ir+3].CC=1SC2=C(N1)C1=CC=CC=C1C=C2 MCEVSYSOEADPPV-UHFFFAOYSA-N 0.000 description 4
- UEEXRMUCXBPYOV-UHFFFAOYSA-N iridium;2-phenylpyridine Chemical compound [Ir].C1=CC=CC=C1C1=CC=CC=N1.C1=CC=CC=C1C1=CC=CC=N1.C1=CC=CC=C1C1=CC=CC=N1 UEEXRMUCXBPYOV-UHFFFAOYSA-N 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
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- 239000000243 solution Substances 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- AWXGSYPUMWKTBR-UHFFFAOYSA-N 4-carbazol-9-yl-n,n-bis(4-carbazol-9-ylphenyl)aniline Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(N(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 AWXGSYPUMWKTBR-UHFFFAOYSA-N 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N DMSO Substances CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 150000001721 carbon Chemical group 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000536 complexating effect Effects 0.000 description 3
- 238000000113 differential scanning calorimetry Methods 0.000 description 3
- 238000005401 electroluminescence Methods 0.000 description 3
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 3
- 239000003480 eluent Substances 0.000 description 3
- 238000000295 emission spectrum Methods 0.000 description 3
- 238000004128 high performance liquid chromatography Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 229920003227 poly(N-vinyl carbazole) Polymers 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
- STTGYIUESPWXOW-UHFFFAOYSA-N 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline Chemical compound C=12C=CC3=C(C=4C=CC=CC=4)C=C(C)N=C3C2=NC(C)=CC=1C1=CC=CC=C1 STTGYIUESPWXOW-UHFFFAOYSA-N 0.000 description 2
- GEQBRULPNIVQPP-UHFFFAOYSA-N 2-[3,5-bis(1-phenylbenzimidazol-2-yl)phenyl]-1-phenylbenzimidazole Chemical compound C1=CC=CC=C1N1C2=CC=CC=C2N=C1C1=CC(C=2N(C3=CC=CC=C3N=2)C=2C=CC=CC=2)=CC(C=2N(C3=CC=CC=C3N=2)C=2C=CC=CC=2)=C1 GEQBRULPNIVQPP-UHFFFAOYSA-N 0.000 description 2
- OUXMJRMYZCEVKO-UHFFFAOYSA-N 2-methylbenzo[e][1,3]benzothiazole Chemical compound C1=CC=C2C(N=C(S3)C)=C3C=CC2=C1 OUXMJRMYZCEVKO-UHFFFAOYSA-N 0.000 description 2
- VFUDMQLBKNMONU-UHFFFAOYSA-N 9-[4-(4-carbazol-9-ylphenyl)phenyl]carbazole Chemical group C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 VFUDMQLBKNMONU-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 101000837344 Homo sapiens T-cell leukemia translocation-altered gene protein Proteins 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- 102100028692 T-cell leukemia translocation-altered gene protein Human genes 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
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- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- LNHFOSMBGIKZPQ-UHFFFAOYSA-N iridium(3+) 2-methylbenzo[e][1,3]benzothiazole Chemical compound [Ir+3].CC=1SC2=C(N1)C1=CC=CC=C1C=C2.CC=2SC1=C(N2)C2=CC=CC=C2C=C1.CC=1SC2=C(N1)C1=CC=CC=C1C=C2 LNHFOSMBGIKZPQ-UHFFFAOYSA-N 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
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- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical compound C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=C(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C3=CC=CC=C3C=CC=2)C=C1 IBHBKWKFFTZAHE-UHFFFAOYSA-N 0.000 description 2
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- FQJQNLKWTRGIEB-UHFFFAOYSA-N 2-(4-tert-butylphenyl)-5-[3-[5-(4-tert-butylphenyl)-1,3,4-oxadiazol-2-yl]phenyl]-1,3,4-oxadiazole Chemical compound C1=CC(C(C)(C)C)=CC=C1C1=NN=C(C=2C=C(C=CC=2)C=2OC(=NN=2)C=2C=CC(=CC=2)C(C)(C)C)O1 FQJQNLKWTRGIEB-UHFFFAOYSA-N 0.000 description 1
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- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 description 1
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- ZOKIJILZFXPFTO-UHFFFAOYSA-N 4-methyl-n-[4-[1-[4-(4-methyl-n-(4-methylphenyl)anilino)phenyl]cyclohexyl]phenyl]-n-(4-methylphenyl)aniline Chemical compound C1=CC(C)=CC=C1N(C=1C=CC(=CC=1)C1(CCCCC1)C=1C=CC(=CC=1)N(C=1C=CC(C)=CC=1)C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 ZOKIJILZFXPFTO-UHFFFAOYSA-N 0.000 description 1
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- KDOQMLIRFUVJNT-UHFFFAOYSA-N 4-n-naphthalen-2-yl-1-n,1-n-bis[4-(n-naphthalen-2-ylanilino)phenyl]-4-n-phenylbenzene-1,4-diamine Chemical compound C1=CC=CC=C1N(C=1C=C2C=CC=CC2=CC=1)C1=CC=C(N(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C3C=CC=CC3=CC=2)C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C3C=CC=CC3=CC=2)C=C1 KDOQMLIRFUVJNT-UHFFFAOYSA-N 0.000 description 1
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- OZYVTSGQNTZNMJ-UHFFFAOYSA-N C1(=CC=CC=C1)C=1N=C(NN1)C1=NC=CC=C1.[Ir+3].CC=1SC2=C(N1)C1=CC=CC=C1C=C2.CC=2SC1=C(N2)C2=CC=CC=C2C=C1 Chemical compound C1(=CC=CC=C1)C=1N=C(NN1)C1=NC=CC=C1.[Ir+3].CC=1SC2=C(N1)C1=CC=CC=C1C=C2.CC=2SC1=C(N2)C2=CC=CC=C2C=C1 OZYVTSGQNTZNMJ-UHFFFAOYSA-N 0.000 description 1
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- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 description 1
- 229910021589 Copper(I) bromide Inorganic materials 0.000 description 1
- 125000000393 L-methionino group Chemical group [H]OC(=O)[C@@]([H])(N([H])[*])C([H])([H])C(SC([H])([H])[H])([H])[H] 0.000 description 1
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- AMYPJOKGGJJERT-UHFFFAOYSA-N [Ir].CC=1SC2=C(N1)C1=CC=CC=C1C=C2.CC=2SC1=C(N2)C2=CC=CC=C2C=C1.CC=1SC2=C(N1)C1=CC=CC=C1C=C2 Chemical compound [Ir].CC=1SC2=C(N1)C1=CC=CC=C1C=C2.CC=2SC1=C(N2)C2=CC=CC=C2C=C1.CC=1SC2=C(N1)C1=CC=CC=C1C=C2 AMYPJOKGGJJERT-UHFFFAOYSA-N 0.000 description 1
- 125000005595 acetylacetonate group Chemical group 0.000 description 1
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- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 125000006575 electron-withdrawing group Chemical group 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000002541 furyl group Chemical class 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- DCZNSJVFOQPSRV-UHFFFAOYSA-N n,n-diphenyl-4-[4-(n-phenylanilino)phenyl]aniline Chemical compound C1=CC=CC=C1N(C=1C=CC(=CC=1)C=1C=CC(=CC=1)N(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 DCZNSJVFOQPSRV-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 125000006574 non-aromatic ring group Chemical group 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 229940081066 picolinic acid Drugs 0.000 description 1
- 229920000172 poly(styrenesulfonic acid) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000001544 thienyl group Chemical class 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
- 125000005259 triarylamine group Chemical group 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- MJRFDVWKTFJAPF-UHFFFAOYSA-K trichloroiridium;hydrate Chemical compound O.Cl[Ir](Cl)Cl MJRFDVWKTFJAPF-UHFFFAOYSA-K 0.000 description 1
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Abstract
Description
第1の利用可能な三重項発光体の1つは、トリス(2−フェニルピリジン)イリジウム(Ir(ppy)3)(Grushinら、Chem. Communications 1494-1495 (2001年))である。この化合物において、2つの6員芳香環が1つのσ結合によって結合されており、この1つが金属原子を錯化するための窒素原子を含有する。Ir(ppy)3の発光特性は、Finkenzellerらによって詳細に研究されてきた。(Chemical Physics Letters 377, 299-305 (2003年))。
本発明は、電気光学用途に適した、即ち、公知の錯体の代替構造を有する三重項発光体として適した、有機金属錯体を提供することを求める。
本発明は、電気光学用途に適した化合物に関し、特に三重項発光体に関する。一般に、以下の層の配列が、本発明による発光体化合物を有するOLED中に存在する必要がある:陽極、例えばZnOのような透明な導電性金属酸化物(TCO)で被覆された基板、有利にはITO(インジウムスズ酸化物)で被覆されたガラス又は有機透明シート材料、正孔輸送材料、発光層、任意に正孔ブロック材料及び/又は電子輸送材料、及び導電性陰極層。
X1はCR’及びNから選択され、
X2はNR’、O、S、Se、Te、CR’R"、及びSiR’R"から選択され、
X3、X4=N、NR’、S、O、CR’、CR’R"、CR’=CR"、N=N、CR’=N、N=CR"、SiR’、SiR’R"、Se、Teであり、
R’、R"はA1、CN、NA1A2、OA1、SA1、F、Cl、Br、I、CNO、NCO、CA1O、COOA1から選択され、A1、A2は任意の置換された(ヘテロ)アルキル、(ヘテロ)アリール又はHであり、該(ヘテロ)アルキル及び(ヘテロ)アリールは、任意に重合可能な基、例えばアルデヒド、アルコール、シアナト、イソシアナト、少なくとも一不飽和のオレフィン性基、ビニル、アルキリデン、アリル、オキセタン、アクリル、アミン、オキシラン、炭酸又はエステル基を有し、
MetはIr、Pt、Ru、Re、Pd及びOsから選択され、
Met=Ir、Os、Ru、Reの場合、n=1〜3、m=3−nであり且つMet=Pt、Pdの場合、n=1〜2、m=2−nであり、
R1、R2は独立してA1、CN、NA1A2、OA1、SA1、F、Cl、Br、I、CNO、NCO、CA1O、COOA1から選択され、A1、A2は任意の置換された(ヘテロ)アルキル、(ヘテロ)アリール又はHであり、任意に重合可能な基、例えばアルデヒド、アルコール、シアナト、イソシアナト、少なくとも一不飽和のオレフィン性基、ビニル、アルキリデン、アリル、オキセタン、アクリル、アミン、オキシラン、炭酸又はエステル基を有し、R1及びR2は置換及び/又は互いに結合することができ、これらは環構造A、B及びCに縮合された置換基、有利には縮合部分を形成し、そしてZ1及びZ2は補助的な飽和配位子の部分である]により表すことができる。
その際、補助的な飽和配位子の変化は1つの例示的な配位子上に示される:
・図1はOLEDの断面図である。
・図2はインバーテッド型OLEDの断面図である。
・図3は更なる実施態様の2つの隣接した放射層を有するOLEDの断面図である。
・図4は太陽電池の断面図である。
・図5は、OLEDの放射層を形成する本発明による化合物のエレクトロルミネセンススペクトルを示す。
・図6は図1で使用したOLEDに印加した電圧に対する電流密度を示す。
・図7は図1で使用したOLEDに印加した電圧に対する輝度を示す。
・図8は異なる放射層厚さのTPBiマトリックス中に発光体としてIr(MNTZ)3を備える図3によるOLEDに印加した電圧に対する電流密度のプロットを示す。
・図9は図8の測定のために使用したOLEDの輝度のプロットを示す。
・図10は図8の測定のために使用したOLEDの1つの輝度効率のプロットを示す。
・図11は図8の測定のために使用したOLEDの1つの長時間安定度のプロットを示す。
・図12はIr(MNTZ)3のエレクトロルミネセンススペクトルを示す。
・図13はIr(MNTZ)3のDSCを示す。
・図14はIr(MNTZ)3のHPLCクロマトグラムを示す。
・図15及び16は本発明による化合物の発光スペクトルを示す。
Sprouseら(J. Am. Chem. Soc. 106, 6647-6653 (1984年))に従って生成したジ−μ−クロロテトラキス(2−メチルナフト[1,2−d]チアゾール)ジ−イリジウム(III)を、M. G. Colomboら(Inorg. Chem. 33, 545- 550 (1994年))によるトリフルオロ酢酸の銀塩と反応させた。
1H NMR([D6]−DMSO):
δ=7.88(d,1H),7.78(d,1H),7.35(d,1H),6.91(m,1H),6.34(d,1H),2.15(s,3H)
13C NMR([D6]−DMSO):
δ=168.5(s),157.5(s),143.3(s),138.4(s),131.4(d),130.3(s),127.1(d),126.1(d),124.8(s),117.9(d),117.8(d),16.6(q)
MS(EI):
m/z(%):787(100)[M]+
UV/Vis(CH2Cl2):
λ/nm(ε)=341(16 900),278(41 000),230(106 000)
C36H30IrN3O3(744.86) 計算値:C54.94 H3.07 N5.34
測定値:C54.61 H3.17 N5.31
環構造Aにメトキシ置換基を導入するために、2−メチルナフト[1,2−d]チアゾール(1g、5.02mmol)とLiBr(0.479g、5.52mmol)を10mlの無水のアセトニトリル中で懸濁させた。アセトニトリル中で懸濁したCAN((NH4)2Ce(NO3)6、3.026g、5.52mmol)を、窒素雰囲気下において室温で1時間にわたり滴加し攪拌した(Subhas Chandra Royら、Tetrahedron Lett. 42, 6941(2001年)に従う)。水を用いた精製及びジクロロメタンを使用するカラムクロマトグラフィーにより淡黄色固体が得られる(収率30%、0.436g、1.57mmol)。生成物(300mg、1.078mmol)を、次いでナトリウムメトキシド(582mg、10.78mmol)を用いてメタノール(2ml)中で温めた(H. L. Aalten Tetrahedron 45(17), 5565 (1989年)に従う)。CuBr(15mg、0.108mmol)を熱溶液に添加し4時間にわたり還流した。水を用いた精製及びカラムクロマトグラフィー(ジクロロメタン/酢酸エチルエステル10:1)により白色固体が得られる(収率68%、168mg、0.732mmol)。Irとの錯化は、以下の反応スキームによるIr(MNTZ)3と類似する:
不活性ガス雰囲気下で、ジ−μ−クロロテトラキス(2−メチルナフト[1,2−d]チアゾール)ジ−イリジウム(III)(300mg、0.24mmol)及びピリジン−2−カルボン酸(74mg、0.6mmol)をエタノール中で懸濁させた。塩基の添加後、反応混合物を還流下で50時間にわたり攪拌する。水(15ml)の添加後、微細な緑灰色の沈殿物を単離し、ジクロロメタン/アセトンを溶出剤として使用するカラムクロマトグラフィーにより精製し、メタノールから再結晶化させると黄褐色の固体が得られる(収率23%)。
1H NMR([D6]−DMSO):
δ=8.10(m,2H),7.95(m,2H),7.77(m,3H),7.51(m,1H),7.37(m,2H),6.96(m,2H),6.29(d,1H),6.11(d,1H),2.99(s,3H),2.11(s,3H)
MS(EI):
m/z(%):711(100)[M]+
P. Coppoら(Chem. Comm. 1774-1774(2004年))に従って、ジ−μ−クロロテトラキス(2−メチルナフト[1,2−d]チアゾール)ジ−イリジウム(III)を2−(5−フェニル−2H−[1,2,4]トリアゾール−3−イル)ピリジンと反応させる。
本発明による化合物を含むエレクトロルミネセンス素子の1例として、マトリックス材料としてのPVK(ポリ(9−ビニルカルバゾール))と混合されているトリス(2−メチルナフト[1,2−d]チアゾール)イリジウム(III)を発光層として有するOLEDが、溶液からの析出により作られた。係るOLEDは、ITOで被覆されたガラスの陽極、正孔輸送材料としてのポリ(3,4−エチレンジオキシチオフェン−ポリ(スチレンスルホン酸)(PEDOT/PSS))、発光層、電子輸送層及び/又は正孔ブロッキング層としての2,9−ジメチル−4,7−ジフェニル−1,10−フェナントロリン(BCP)、並びにLiF/Al陰極層から成る。
Claims (22)
- 電気光学素子に適した化合物であって、一般式I
X1はCR’及びNから選択され、
X2はNR’、O、S、Se、Te、CR’R"及びSiR’R"から選択され、
X3、X4は独立してN、NR’、S、O、CR’、CR’R"、CR’=CR"、N=N、CR’=N、N=CR"、SiR’、SiR’R"、Se及びTeから選択され、
R’、R"はA1、CN、NA1A2、OA1、SA1、F、Cl、Br、I、CNO、NCO、CA1O、COOA1から選択され、
A1、A2は任意の置換された(ヘテロ)アルキル、(ヘテロ)アリール、又はHであり、
MetはIr、Pt、Ru、Re、Pd及びOsから選択され、Met=Ir、Os、Ru、Reの場合n=1〜3、m=3−nであり且つMet=Pt、Pdの場合n=1〜2、m=2−nであり、
R1、R2は独立してA1、CN、NA1A2、OA1、SA1、F、Cl、Br、I、CNO、NCO、CA1O、COOA1から選択され、
- A1及び/又はA2は、アルデヒド、アルコール、シアナト、イソシアナト、少なくとも一不飽和のオレフィン性基、ビニル、アルキリデン、アリル、オキセタン、アクリル、アミン、オキシラン、炭酸又はエステル基を含む群から選択される重合可能な基と置換されることを特徴とする、請求項1記載の化合物。
- 環構造A、B及びCが縮合系を形成することを特徴とする、請求項1又は2記載の化合物。
- R1〜R5のいずれかが互いに結合し、環構造A、B及び/又はCの1つ以上に縮合された置換基を形成することを特徴とする、請求項1から4までのいずれか1項記載の化合物。
- 環構造A、B及びCが電荷輸送部分と置換されることを特徴とする、請求項1から5までのいずれか1項記載の化合物。
- Z1及びZ2は、化学結合によって又は1、2又は3個の付加的な原子をZ1とZ2との間に配置する中間基によって連結する原子を表し、Z1及びZ2は独立してメチレン、置換されたメチレン、N、NR1、S、O、Se、Te、CR1、SiR1、CR1R2、SiR1R2、CR2=CR3、N=N、CR1=Nから選択され、R1〜R3は独立してA1、CN、NA1A2、OA1、SA1、F、Cl、Br、I、SO2A1、CNO、NCO、CA1O、COOA1から選択され、A1及びA2は、任意の置換された(ヘテロ)アルキル、(ヘテロ)アリール、又はHであり、前記(ヘテロ)アルキル、(ヘテロ)アリールは重合可能な基を有することを特徴とする、請求項1から6までのいずれか1項記載の化合物。
- 請求項1から8までのいずれか1項記載の化合物であって、1〜18個の炭素原子を有する直鎖、分枝鎖又は環状の炭化水素から選択された(ヘテロ)アルキル及び1〜18個の炭素原子を有する一不飽和、二不飽和及び多不飽和の直鎖、分枝鎖又は環状の炭化水素から選択された(ヘテロ)アリールであることを特徴とする、請求項1から8までのいずれか1項記載の化合物。
- 前記重合可能な基が、アルデヒド、アルコール、シアナト、イソシアナト、少なくとも一不飽和のオレフィン性基、ビニル、アルキリデン、アリル、オキセタン、アクリル、アミン、オキシラン、炭酸又はエステル基を含む群から選択されることを特徴とする、請求項1から9までのいずれか1項記載の化合物。
- 前記重合可能な基が、ポリアルキレン基、マトリックス基、電子輸送基及び/又は正孔輸送基から選択されるポリマー性基に連結することを特徴とする、請求項10記載の化合物。
- 請求項1から11までのいずれか1項記載の化合物を部分として少なくとも2個含むことを特徴とする、オリゴマー、デンドリマー又はポリマー。
- 請求項1から11までのいずれか1項記載の化合物の電気光学素子における三重項発光体としての使用。
- 請求項1から11までのいずれか1項記載の化合物の製造方法。
- ハロゲンが塩素又は臭素である、中間μ-ハロゲノ錯体が存在することを特徴とする、請求項14記載の方法。
- 請求項1から11までのいずれか1項記載の化合物を使用することを特徴とする、電気光学素子の製造方法。
- 請求項1から11までのいずれか1項記載の化合物を溶液からの塗布又はスパッタリングによって適用することを特徴とする、請求項15記載の方法。
- 前記塗布が噴霧、回転、浸漬又はナイフ塗布又は印刷であることを特徴とする、請求項16記載の方法。
- 請求項1から9までのいずれか1項記載の化合物が使用され、前記素子の有機層及び最終的な接触電極を真空下で形成させることを特徴とする、請求項16記載の方法。
- 真空法がPVD法(物理的蒸着)、CVD法(化学的蒸着)、又はOVPD法(有機気相蒸着)であることを特徴とする、請求項19記載の方法。
- 請求項1から11記載の化合物を含むことを特徴とする、電気光学素子。
- 前記電気光学素子がOLED、OFET、レーザー又は光起電力素子であることを特徴とする、請求項21記載の電気光学素子。
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Also Published As
Publication number | Publication date |
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WO2007028822A1 (en) | 2007-03-15 |
JP5130216B2 (ja) | 2013-01-30 |
KR20080080275A (ko) | 2008-09-03 |
US8278238B2 (en) | 2012-10-02 |
US20090165846A1 (en) | 2009-07-02 |
KR101333451B1 (ko) | 2013-11-26 |
WO2007028417A1 (en) | 2007-03-15 |
EP1926741A1 (en) | 2008-06-04 |
CN101300264A (zh) | 2008-11-05 |
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