JP5410657B2 - 高分子化合物およびそれを利用した有機電界発光素子 - Google Patents
高分子化合物およびそれを利用した有機電界発光素子 Download PDFInfo
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- JP5410657B2 JP5410657B2 JP2007149586A JP2007149586A JP5410657B2 JP 5410657 B2 JP5410657 B2 JP 5410657B2 JP 2007149586 A JP2007149586 A JP 2007149586A JP 2007149586 A JP2007149586 A JP 2007149586A JP 5410657 B2 JP5410657 B2 JP 5410657B2
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- 150000001875 compounds Chemical class 0.000 title claims description 79
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- 239000002019 doping agent Substances 0.000 claims description 21
- 239000000126 substance Substances 0.000 claims description 19
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 7
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- 125000001624 naphthyl group Chemical group 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 125000002524 organometallic group Chemical group 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 claims 10
- 125000004429 atom Chemical group 0.000 claims 1
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- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
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- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 3
- 229910052794 bromium Inorganic materials 0.000 description 3
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- 125000005678 ethenylene group Chemical group [H]C([*:1])=C([H])[*:2] 0.000 description 3
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- 125000001544 thienyl group Chemical group 0.000 description 3
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- VMKOFRJSULQZRM-UHFFFAOYSA-N 1-bromooctane Chemical compound CCCCCCCCBr VMKOFRJSULQZRM-UHFFFAOYSA-N 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
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- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
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- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 2
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- 125000003710 aryl alkyl group Chemical group 0.000 description 2
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- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
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- 125000004404 heteroalkyl group Chemical group 0.000 description 2
- 125000001841 imino group Chemical group [H]N=* 0.000 description 2
- PQNFLJBBNBOBRQ-UHFFFAOYSA-N indane Chemical compound C1=CC=C2CCCC2=C1 PQNFLJBBNBOBRQ-UHFFFAOYSA-N 0.000 description 2
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 2
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- REEZZSHJLXOIHL-UHFFFAOYSA-N octanoyl chloride Chemical compound CCCCCCCC(Cl)=O REEZZSHJLXOIHL-UHFFFAOYSA-N 0.000 description 2
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- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 2
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- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000000335 thiazolyl group Chemical group 0.000 description 2
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- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 2
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 2
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- SQAINHDHICKHLX-UHFFFAOYSA-N 1-naphthaldehyde Chemical compound C1=CC=C2C(C=O)=CC=CC2=C1 SQAINHDHICKHLX-UHFFFAOYSA-N 0.000 description 1
- 125000001731 2-cyanoethyl group Chemical group [H]C([H])(*)C([H])([H])C#N 0.000 description 1
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
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- 0 C*c1ccc(C)cc1 Chemical compound C*c1ccc(C)cc1 0.000 description 1
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- 239000012300 argon atmosphere Substances 0.000 description 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 125000002511 behenyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- XJHCXCQVJFPJIK-UHFFFAOYSA-M caesium fluoride Inorganic materials [F-].[Cs+] XJHCXCQVJFPJIK-UHFFFAOYSA-M 0.000 description 1
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
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- 238000004440 column chromatography Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
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- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 125000006612 decyloxy group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical group C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000005567 fluorenylene group Chemical group 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 125000004785 fluoromethoxy group Chemical group [H]C([H])(F)O* 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 125000004438 haloalkoxy group Chemical group 0.000 description 1
- 125000004446 heteroarylalkyl group Chemical group 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 125000000592 heterocycloalkyl group Chemical group 0.000 description 1
- 125000003707 hexyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000004464 hydroxyphenyl group Chemical group 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 125000001786 isothiazolyl group Chemical group 0.000 description 1
- 125000000842 isoxazolyl group Chemical group 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Inorganic materials [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 1
- 125000000040 m-tolyl group Chemical group [H]C1=C([H])C(*)=C([H])C(=C1[H])C([H])([H])[H] 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 125000002960 margaryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004776 molecular orbital Methods 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 125000002757 morpholinyl group Chemical group 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004957 naphthylene group Chemical group 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001196 nonadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000006611 nonyloxy group Chemical group 0.000 description 1
- 125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 description 1
- 125000002801 octanoyl group Chemical group C(CCCCCCC)(=O)* 0.000 description 1
- 125000005447 octyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 150000004866 oxadiazoles Chemical class 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004115 pentoxy group Chemical group [*]OC([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 150000005041 phenanthrolines Chemical class 0.000 description 1
- 125000004193 piperazinyl group Chemical group 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229960002796 polystyrene sulfonate Drugs 0.000 description 1
- 239000011970 polystyrene sulfonate Substances 0.000 description 1
- 150000004032 porphyrins Chemical class 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000005548 pyrenylene group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000719 pyrrolidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000005493 quinolyl group Chemical group 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229940042055 systemic antimycotics triazole derivative Drugs 0.000 description 1
- 125000006836 terphenylene group Chemical group 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001712 tetrahydronaphthyl group Chemical group C1(CCCC2=CC=CC=C12)* 0.000 description 1
- 238000004809 thin layer chromatography Methods 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000006617 triphenylamine group Chemical group 0.000 description 1
- BWHDROKFUHTORW-UHFFFAOYSA-N tritert-butylphosphane Chemical compound CC(C)(C)P(C(C)(C)C)C(C)(C)C BWHDROKFUHTORW-UHFFFAOYSA-N 0.000 description 1
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Description
("Appl.Phys.Lett."51,913(1987) [Advanced materials 2005,17(8),1018]
R1およびR2は、それぞれ独立して、水素原子、炭素数1〜30の置換または非置換のアルキル基、炭素数1〜30の置換または非置換のシクロアルキル基、炭素数1〜30の置換または非置換のアルコキシ基、炭素数6〜30の置換または非置換のアリール基、炭素数2〜30の置換または非置換のヘテロアリール基、炭素数4〜30の置換または非置換の複素環基および炭素数6〜30の縮合環基からなる群から選択されるいずれか1種である、または、前記R1およびR2は、互いに結合されて環を形成でき、
Ar1およびAr2は、それぞれ独立して、炭素数6〜30の置換または非置換のアリーレン基、炭素数2〜30の置換または非置換のヘテロアリーレン基、炭素数2〜30の置換または非置換の複素環基および炭素数2〜30の置換または非置換のビニレン基からなる群から選択され、
Ar3およびAr4は、それぞれ独立して、水素原子、炭素数1〜30の置換または非置換のアルキル基、炭素数1〜30の置換または非置換のアルコキシ基、炭素数6〜30の置換または非置換のアリール基、炭素数2〜30の置換または非置換のヘテロアリール基、炭素数2〜30の置換または非置換の複素環基、および炭素数6〜30の縮合環基からなる群から選択されるいずれか1種であり、
Qは、CH=CH、O、S、Seまたは(CH2)mであり、mは、1〜10の実数であり、
nは、重合度であって、10〜300の実数である。
R1およびR2は、それぞれ独立して、水素原子、炭素数1〜30の置換または非置換のアルキル基、炭素数1〜30の置換または非置換のシクロアルキル基、炭素数1〜30の置換または非置換のアルコキシ基、炭素数6〜30の置換または非置換のアリール基、炭素数2〜30の置換または非置換のヘテロアリール基、炭素数4〜30の置換または非置換の複素環基および炭素数6〜30の縮合環基からなる群から選択されるいずれか1種である、または、前記R1およびR2は、互いに結合されて環を形成でき、
Ar1およびAr2は、それぞれ独立して、炭素数6〜30の置換または非置換のアリーレン基、炭素数2〜30の置換または非置換のヘテロアリーレン基、炭素数2〜30の置換または非置換の複素環基および炭素数2〜30の置換または非置換のビニレン基からなる群から選択され、
Ar3およびAr4は、それぞれ独立して、水素原子、炭素数1〜30の置換または非置換のアルキル基、炭素数1〜30の置換または非置換のアルコキシ基、炭素数6〜30の置換または非置換のアリール基、炭素数2〜30の置換または非置換のヘテロアリール基、炭素数2〜30の置換または非置換の複素環基、および炭素数6〜30の縮合環基からなる群から選択されるいずれか1種であり、
Qは、CH=CH、O、S、Seまたは(CH2)mであり、mは、1〜10の実数であり、
nは、重合度であって、10〜300の実数である。
R1およびR2は、それぞれ独立して、水素原子、炭素数1〜30の置換または非置換のアルキル基、炭素数1〜30の置換または非置換のシクロアルキル基、炭素数1〜30の置換または非置換のアルコキシ基、炭素数6〜30の置換または非置換のアリール基、炭素数2〜30の置換または非置換のヘテロアリール基、炭素数4〜30の置換または非置換の複素環基および炭素数6〜30の縮合環基からなる群から選択されるいずれか1種である、または、前記R1およびR2は、互いに結合されて環を形成でき、
Ar1およびAr2は、それぞれ独立して、炭素数6〜30の置換または非置換のアリーレン基、炭素数2〜30の置換または非置換のヘテロアリーレン基、炭素数2〜30の置換または非置換の複素環基および炭素数2〜30の置換または非置換のビニレン基からなる群から選択され、
Ar3およびAr4は、それぞれ独立して、水素原子、炭素数1〜30の置換または非置換のアルキル基、炭素数1〜30の置換または非置換のアルコキシ基、炭素数6〜30の置換または非置換のアリール基、炭素数2〜30の置換または非置換のヘテロアリール基、炭素数2〜30の置換または非置換の複素環基、および炭素数6〜30の縮合環基からなる群から選択されるいずれか1種であり、
Qは、CH=CH、O、S、Seまたは(CH2)mであり、mは、1〜10の実数(好ましくは整数)であり、
nは、重合度であって、10〜300の実数である。
本発明のOLEDは、図1Aおよび図1Bの構造のOLEDだけでなく、多様な構造のOLEDが可能であり、必要に応じて一層または二層以上の中間層をさらに形成することも可能である。
<フェノキサジン単量体(図2Aの化合物(C))の合成>
1)化合物(A)の製造
4−ブロモフェノール50g(0.29mole)をアセトン(500mL)に溶解させた後、ここにK2CO3 48.4g(0.35mole)を添加した。次いで、前記混合物に1−ブロモオクタン73.3g(0.38mole)を添加して24時間還流させた。
化合物(A)18g(64mmol)、フェノキサジン10g(54mmol)、ナトリウムtert−ブトキシド7.4g(77mmol)、トリス(ジベンジリジンアセトン)ジパラジウム(0)(Pd2(dba)3)0.61g(1.1mmol)およびトリ(tert−ブチル)ホスフィン0.22g(1.1mmol)をキシレン250mLに溶解させた後、80℃で12時間反応させた。
化合物(B)5g(13mmol)をCHCl3 150mLに溶解させた後、0℃に維持しつつ化合物(B)に対して臭素2.1当量を徐々に添加した。TLC(Thin Layer Chromatography)確認により出発物質がなくなれば、前記混合物に臭素の添加を中止し、反応混合物を10分間攪拌した後に反応を停止させた。
<ピロール単量体(図2Bの化合物(F))の合成>
1)化合物(D)の製造
溶媒として500mlのアセトンが入っている1リットル機械的攪拌器が備えられた丸底フラスコに、40.75g(225mmol)のパラブロモフェニルアセチレンを入れ、1.11g(14mmol)の塩化銅(I)と1.31g(14mmol)のN,N,N’,N’−テトラメチルエチレンジアミン(TMEDA)とを入れた後、20℃で1時間酸素をバブリングしつつ強く攪拌した。反応終了後、アセトンを除去し、反応物を5%の塩酸に沈殿させて薄い黄色い固体を得た。その後、それをクロロホルムで再結晶して乾燥させた結果、39.8g(98.2%)の薄い黄色い固体を得た。溶融点は264〜265℃であった。
アルゴン雰囲気下で、500mlの丸底フラスコに31.6g(88mmol)の化合物(D)、15.1g(88mmol)のp−トルイジンおよび2.17g(22mmol)の塩化銅(I)を入れ、200℃で攪拌しつつ5時間反応させた。反応後に冷却させた後、反応物をクロロホルムに溶解させ、5%の塩酸で複数回洗浄した。有機溶液を再び水で複数回洗浄した後、無水硫酸マグネシウムで乾燥させ、溶媒を除去して得られた固体をエチルアセテートとクロロホルムとで再結晶して28.5g(69.6%)の白色固体を得た。溶融点は262〜264℃であった。
還流コンデンサと滴下漏斗が備えられた500mlの丸底フラスコに、3塩化アルミニウム0.68g(5.1mmol)と50mlのクロロホルムとを入れて攪拌しつつ、塩化オクタノイル(オクタノイルクロライド)0.83g(5.1mmol)を10mlのクロロホルムに希釈させて20℃で、滴下漏斗を利用して添加した。ここで、化合物(E)1.5g(4.8mmol)を再び20mlのクロロホルムに溶かして滴下漏斗を使用して滴下し、50℃で24時間反応させた。反応後、生成物を100gの氷に注いだ後、有機層を集めて水で複数回洗浄した。得られた有機溶液を無水硫酸マグネシウムで乾燥させ、溶媒を除去した後、カラムクロマトグラフィ(エチルアセテート/ヘキサン(1:5))で精製して1.97g(93.4%)のピュアな薄い黄色い粘性のあるオイルを得た。
シュレンクフラスコの内部を数回真空化、窒素還流させて水分を完全に除去した後、ビス(1,5−シクロオクタジニル)ニッケル(0)(Ni(COD)2)880mg(3.2mmol)とビピリジン500mg(3.2mmol)とをグローブボックス(glove box)内で投入した後、再び数回フラスコの内部を真空化、窒素還流させた。
まず、ガラス基板上にITOをコーティングした透明電極基板をきれいに洗浄した後、ITOを、感光性樹脂とエッチャントとを利用して所望の形状にパターニングし、再びきれいに洗浄した。
化合物Mに追加してドーパントとしてF4TCNQ 5質量%を共に注入して正孔注入層を形成した点を除いては、実施例1と同一に有機EL素子を製作した。
この素子のターンオン電圧は3.5Vであり、発光効率は4.6cd/Aであり、色座標は(0.16,0.28)であった。
化合物Mに追加してドーパントとしてF4TCNQ 10質量%を共に注入して正孔注入層を形成した点を除いては、実施例1と同一に有機EL素子を製作した。
この素子のターンオン電圧は2.6Vであり、発光効率は5.3cd/Aであり、色座標は(0.16,0.28)であった。
化合物Mの代わりにPEDOT化合物(ポリ(3,4−エチレンジオキシチオフェン))を使用して、トルエンの代わりに水を使用して、正孔注入層を形成した点を除いては、実施例1と同様に有機EL素子を製作した。
化合物Mの代わりに前記ピロール単量体化合物Fの単独重合体(以下、KH化合物という)を使用して正孔注入層を形成した点を除いては、実施例1と同様に有機EL素子を製作した。
化合物Mの代わりにKH化合物を使用し、ドーパントとしてF4TCNQ 3質量%を使用して正孔注入層を形成した点を除いては、実施例1と同様に有機EL素子を製作した。
化合物Mの代わりにKH化合物を使用し、ドーパントとしてF4TCNQ 10質量%を使用して正孔注入層を形成した点を除いては、実施例1と同様に有機EL素子を製作した。
化合物Mの代わりにKH化合物を使用し、ドーパントとしてF4TCNQ 20質量%を使用して正孔注入層を形成した点を除いては、実施例1と同様に有機EL素子を製作した。
化合物Mの代わりにKH化合物を使用し、ドーパントとしてF4TCNQ 10質量%を使用して正孔注入層を形成した点を除いては、実施例1と同様に有機EL素子を製作した。
化合物Mの代わりにKH化合物を使用し、ドーパントとしてF4TCNQ 20質量%を使用して正孔注入層を形成した点を除いては、実施例1と同様に有機EL素子を製作した。
Claims (6)
- 下記化学式1で表される高分子化合物:
R 1 、R 2 、Ar 1 、Ar 2 、Ar 3 およびAr 4 の置換基の組合せが、次の(a)〜(e)のうちいずれか1つであり、
(a)R 1 =水素原子、R 2 =ヘプタノイル基(−COC 7 H 15 )、Ar 1 =1,4−フェニレン基、Ar 2 =1,4−フェニレン基、Ar 3 =炭素数7〜26のp−アルキルフェニル基、Ar 4 =炭素数7〜26のp−アルコキシフェニル基
(b)R 1 =水素原子、R 2 =炭素数1〜30の置換または非置換のアルキル基、Ar 1 =1,4−フェニレン基、Ar 2 =1,4−フェニレン基、Ar 3 =炭素数7〜26のp−アルキルフェニル基、Ar 4 =炭素数7〜26のp−アルコキシフェニル基
(c)R 1 =炭素数1〜30の置換または非置換、R 2 =炭素数1〜30の置換または非置換のアルキル基、Ar 1 =1,4−フェニレン基、Ar 2 =1,4−フェニレン基、Ar 3 =炭素数7〜26のp−アルキルフェニル基、Ar 4 =炭素数7〜26のp−アルコキシフェニル基
(d)R 1 =フェニル基、R 2 =フェニル基、Ar 1 =1,4−フェニレン基、Ar 2 =1,4−フェニレン基、Ar 3 =炭素数7〜26のp−アルキルフェニル基、Ar 4 =炭素数7〜26のp−アルキルフェニル基
(e)R 1 =炭素数1〜30の置換または非置換、R 2 =炭素数1〜30の置換または非置換のアルキル基、Ar 1 =1,4−フェニレン基、Ar 2 =1,4−フェニレン基、Ar 3 =炭素数7〜26のp−アルキルフェニル基、Ar 4 =炭素数10〜29の6−アルキルナフチル基
Qは、Oであり、
nは、重合度であって、10〜300の実数である。 - 一対の電極間に有機膜を備えるEL素子であって、
前記有機膜が、請求項1または2に記載の高分子化合物を含むことを特徴とする、有機電界発光素子。 - 前記有機膜が、正孔注入層または正孔輸送層の少なくとも一方であることを特徴とする、請求項3に記載の有機電界発光素子。
- 前記有機膜が、ドーパントをさらに含むことを特徴とする、請求項3または4に記載の有機電界発光素子。
- 前記ドーパントが、アクセプタ物質、有機金属錯体、金属酸化物およびイオン塩からなる群から選択される少なくとも1種であることを特徴とする、請求項5に記載の有機電界発光素子。
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US7939622B2 (en) | 2011-05-10 |
CN101085832A (zh) | 2007-12-12 |
CN101085832B (zh) | 2012-03-28 |
KR101223720B1 (ko) | 2013-01-17 |
KR20070116441A (ko) | 2007-12-10 |
US20070278455A1 (en) | 2007-12-06 |
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