JP2019512887A - 有機発光素子 - Google Patents
有機発光素子 Download PDFInfo
- Publication number
- JP2019512887A JP2019512887A JP2018549309A JP2018549309A JP2019512887A JP 2019512887 A JP2019512887 A JP 2019512887A JP 2018549309 A JP2018549309 A JP 2018549309A JP 2018549309 A JP2018549309 A JP 2018549309A JP 2019512887 A JP2019512887 A JP 2019512887A
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- Japan
- Prior art keywords
- substituted
- unsubstituted
- group
- organic light
- emitting device
- Prior art date
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- -1 biphenylyl Chemical group 0.000 claims description 80
- 150000001875 compounds Chemical class 0.000 claims description 78
- 239000000126 substance Substances 0.000 claims description 44
- 125000003118 aryl group Chemical group 0.000 claims description 34
- 229910052760 oxygen Inorganic materials 0.000 claims description 24
- 125000000217 alkyl group Chemical group 0.000 claims description 21
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 19
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 17
- 229910052717 sulfur Inorganic materials 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 14
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- 125000003342 alkenyl group Chemical group 0.000 claims description 11
- 125000006819 (C2-60) heteroaryl group Chemical group 0.000 claims description 10
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 10
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 9
- 229910052805 deuterium Inorganic materials 0.000 claims description 9
- 229910052736 halogen Inorganic materials 0.000 claims description 9
- 150000002367 halogens Chemical class 0.000 claims description 9
- 125000004076 pyridyl group Chemical group 0.000 claims description 7
- 125000000732 arylene group Chemical group 0.000 claims description 5
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 claims description 5
- 125000001624 naphthyl group Chemical group 0.000 claims description 5
- 125000005509 dibenzothiophenyl group Chemical group 0.000 claims description 4
- 125000001792 phenanthrenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C=CC12)* 0.000 claims description 4
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 3
- 125000005549 heteroarylene group Chemical group 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 125000004438 haloalkoxy group Chemical group 0.000 claims description 2
- 125000001188 haloalkyl group Chemical group 0.000 claims description 2
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 81
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 42
- 238000002347 injection Methods 0.000 description 33
- 239000007924 injection Substances 0.000 description 33
- 239000000463 material Substances 0.000 description 26
- 238000004519 manufacturing process Methods 0.000 description 23
- 239000012044 organic layer Substances 0.000 description 23
- 238000002360 preparation method Methods 0.000 description 22
- 238000006243 chemical reaction Methods 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 18
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 18
- 0 Cc1cccc(*)c1-c1c(C)c([Al])ccc1 Chemical compound Cc1cccc(*)c1-c1c(C)c([Al])ccc1 0.000 description 16
- 230000032258 transport Effects 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 13
- 239000000203 mixture Substances 0.000 description 13
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 12
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 12
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 11
- 125000001424 substituent group Chemical group 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 125000004432 carbon atom Chemical group C* 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 8
- 230000005525 hole transport Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- ABRVLXLNVJHDRQ-UHFFFAOYSA-N [2-pyridin-3-yl-6-(trifluoromethyl)pyridin-4-yl]methanamine Chemical compound FC(C1=CC(=CC(=N1)C=1C=NC=CC=1)CN)(F)F ABRVLXLNVJHDRQ-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 125000000623 heterocyclic group Chemical group 0.000 description 7
- 238000010992 reflux Methods 0.000 description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical group C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000010405 anode material Substances 0.000 description 6
- 150000004982 aromatic amines Chemical class 0.000 description 6
- 239000010406 cathode material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004770 highest occupied molecular orbital Methods 0.000 description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 6
- UJORPFQWUKFXIE-UHFFFAOYSA-N 2-[1-[(4-ethoxy-2,6-difluorophenyl)methyl]-5,6-dihydro-4h-cyclopenta[c]pyrazol-3-yl]-5-methoxy-n-pyridin-4-ylpyrimidin-4-amine Chemical compound FC1=CC(OCC)=CC(F)=C1CN1C(CCC2)=C2C(C=2N=C(NC=3C=CN=CC=3)C(OC)=CN=2)=N1 UJORPFQWUKFXIE-UHFFFAOYSA-N 0.000 description 5
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical group C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 5
- 238000000151 deposition Methods 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 5
- 239000002019 doping agent Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 238000006069 Suzuki reaction reaction Methods 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 229920001940 conductive polymer Polymers 0.000 description 4
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 4
- 150000004032 porphyrins Chemical class 0.000 description 4
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 4
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 229940126062 Compound A Drugs 0.000 description 3
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000002877 alkyl aryl group Chemical group 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 125000001769 aryl amino group Chemical group 0.000 description 3
- 125000006267 biphenyl group Chemical group 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229920000767 polyaniline Polymers 0.000 description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 description 3
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- JWJQEUDGBZMPAX-UHFFFAOYSA-N (9-phenylcarbazol-3-yl)boronic acid Chemical compound C12=CC=CC=C2C2=CC(B(O)O)=CC=C2N1C1=CC=CC=C1 JWJQEUDGBZMPAX-UHFFFAOYSA-N 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 2
- DDGPPAMADXTGTN-UHFFFAOYSA-N 2-chloro-4,6-diphenyl-1,3,5-triazine Chemical compound N=1C(Cl)=NC(C=2C=CC=CC=2)=NC=1C1=CC=CC=C1 DDGPPAMADXTGTN-UHFFFAOYSA-N 0.000 description 2
- 125000005916 2-methylpentyl group Chemical group 0.000 description 2
- DMEVMYSQZPJFOK-UHFFFAOYSA-N 3,4,5,6,9,10-hexazatetracyclo[12.4.0.02,7.08,13]octadeca-1(18),2(7),3,5,8(13),9,11,14,16-nonaene Chemical group N1=NN=C2C3=CC=CC=C3C3=CC=NN=C3C2=N1 DMEVMYSQZPJFOK-UHFFFAOYSA-N 0.000 description 2
- QENGPZGAWFQWCZ-UHFFFAOYSA-N 3-Methylthiophene Chemical compound CC=1C=CSC=1 QENGPZGAWFQWCZ-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- ZEEBGORNQSEQBE-UHFFFAOYSA-N [2-(3-phenylphenoxy)-6-(trifluoromethyl)pyridin-4-yl]methanamine Chemical compound C1(=CC(=CC=C1)OC1=NC(=CC(=C1)CN)C(F)(F)F)C1=CC=CC=C1 ZEEBGORNQSEQBE-UHFFFAOYSA-N 0.000 description 2
- SAHIZENKTPRYSN-UHFFFAOYSA-N [2-[3-(phenoxymethyl)phenoxy]-6-(trifluoromethyl)pyridin-4-yl]methanamine Chemical compound O(C1=CC=CC=C1)CC=1C=C(OC2=NC(=CC(=C2)CN)C(F)(F)F)C=CC=1 SAHIZENKTPRYSN-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000003282 alkyl amino group Chemical group 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 150000004056 anthraquinones Chemical class 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 125000005264 aryl amine group Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- FDAUJIBOPZFISJ-UHFFFAOYSA-N c1ccc(C2N=C(c3cccc(c4c5)c3[s]c4ccc5-c3ccc(c(cccc4)c4[n]4-c5ccccc5)c4c3)N=C(c3ccccc3)N2)cc1 Chemical compound c1ccc(C2N=C(c3cccc(c4c5)c3[s]c4ccc5-c3ccc(c(cccc4)c4[n]4-c5ccccc5)c4c3)N=C(c3ccccc3)N2)cc1 FDAUJIBOPZFISJ-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000004440 column chromatography Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 125000005241 heteroarylamino group Chemical group 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 125000002950 monocyclic group Chemical group 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical group C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- ZOUWOGOTHLRRLS-UHFFFAOYSA-N palladium;phosphane Chemical compound P.[Pd] ZOUWOGOTHLRRLS-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 125000003367 polycyclic group Chemical group 0.000 description 2
- 229920000123 polythiophene Polymers 0.000 description 2
- 235000011056 potassium acetate Nutrition 0.000 description 2
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 229930192474 thiophene Natural products 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- QNEGDGPAXKYZHZ-UHFFFAOYSA-N (2,4-dichlorophenyl)boronic acid Chemical compound OB(O)C1=CC=C(Cl)C=C1Cl QNEGDGPAXKYZHZ-UHFFFAOYSA-N 0.000 description 1
- NXSZSZJWZVLHAY-UHFFFAOYSA-N (2-chloro-6-fluorophenyl)boronic acid Chemical compound OB(O)C1=C(F)C=CC=C1Cl NXSZSZJWZVLHAY-UHFFFAOYSA-N 0.000 description 1
- YBNDRTRLXPEWKQ-UHFFFAOYSA-N (4-chloro-2-fluorophenyl)boronic acid Chemical compound OB(O)C1=CC=C(Cl)C=C1F YBNDRTRLXPEWKQ-UHFFFAOYSA-N 0.000 description 1
- GGTUVWGMCFXUAS-UHFFFAOYSA-N (5-chloro-2-fluorophenyl)boronic acid Chemical compound OB(O)C1=CC(Cl)=CC=C1F GGTUVWGMCFXUAS-UHFFFAOYSA-N 0.000 description 1
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical group C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 125000000355 1,3-benzoxazolyl group Chemical group O1C(=NC2=C1C=CC=C2)* 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- WTAPZWXVSZMMDG-UHFFFAOYSA-N 1,5-diphenylpenta-1,4-dien-3-one;palladium Chemical compound [Pd].C=1C=CC=CC=1C=CC(=O)C=CC1=CC=CC=C1 WTAPZWXVSZMMDG-UHFFFAOYSA-N 0.000 description 1
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical group C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 1
- 125000004973 1-butenyl group Chemical group C(=CCC)* 0.000 description 1
- 125000006218 1-ethylbutyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000006023 1-pentenyl group Chemical group 0.000 description 1
- MYKQKWIPLZEVOW-UHFFFAOYSA-N 11h-benzo[a]carbazole Chemical group C1=CC2=CC=CC=C2C2=C1C1=CC=CC=C1N2 MYKQKWIPLZEVOW-UHFFFAOYSA-N 0.000 description 1
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical group C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/12—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
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Abstract
Description
本出願は、2016年11月29日付韓国特許出願第10−2016−0160371号および2017年11月17日付韓国特許出願第10−2017−0154011号に基づいた優先権の利益を主張し、当該韓国特許出願の文献に開示されたすべての内容は本明細書の一部として組み含まれる。
陰極;陽極;および前記陰極と陽極との間に少なくとも一つ以上の発光層を含み、
前記発光層は、下記化学式1で表される第1ホスト化合物および下記化学式2で表される第2ホスト化合物を含む、
有機発光素子:
[化学式1]
R1は、置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC3−60シクロアルキル;置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、
R2およびR3は、それぞれ独立に、水素;重水素;ハロゲン;シアノ;置換もしくは非置換のC1−60アルキル;または置換もしくは非置換のC3−60シクロアルキルであり、
nは、0から4の整数であり、
mは、0から3の整数であり、
Yは、O、S、またはCR4R5であり、
R4およびR5は、それぞれ独立に、水素;重水素;ハロゲン;シアノ;置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC3−60シクロアルキル;または置換もしくは非置換のC6−60アリールであり、
Arは、下記化学式1'で表され、
[化学式1']
X1からX3は、それぞれ独立に、N、またはCR6であり、ただし、X1からX3のうちの少なくとも一つはNであり、
R6は、それぞれ独立に、水素;重水素;ハロゲン;シアノ;ニトロ;アミノ;置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC1−60ハロアルキル;置換もしくは非置換のC1−60ハロアルコキシ;置換もしくは非置換のC3−60シクロアルキル;置換もしくは非置換のC2−60アルケニル;置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、
Ar1およびAr2は、それぞれ独立に、置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、
[化学式2]
R'1は、置換もしくは非置換のC6−60アリールであり、
R'2およびR'3は、それぞれ独立に、水素;重水素;ハロゲン;シアノ;置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC3−60シクロアルキル;置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、
n'およびm'は、それぞれ独立に、0から4の整数であり、
L'は、単一結合;置換もしくは非置換のC6−60アリーレンであり、
Y'は、O、S、NR'、またはCR'R"であり、
R'およびR"は、それぞれ独立に、置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC3−60シクロアルキル;置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、またはR'およびR"が共に置換もしくは非置換のC6−60芳香族環を形成する。
陰極;陽極;および前記陰極と陽極との間に少なくとも一つ以上の発光層を含み、前記発光層は、前記化学式1で表される第1ホスト化合物および前記化学式2で表される第2ホスト化合物を含む、有機発光素子。
本発明で用いられる陽極および陰極は、有機発光素子で用いられる電極を意味する。
本発明による発光層は、前記化学式1で表される第1ホスト化合物および前記化学式2で表される第2ホスト化合物を含む。
また、本発明による有機発光素子は、必要に応じて正孔注入層、正孔輸送層、電子輸送層、および/または電子伝達層を含んでもよい。
本発明による有機発光素子は、前記発光層に第1ホストと第2ホストを含むことを除いては当該技術分野に知られている材料と方法で製造されてもよい。
3−ブロモベンゼン−1,2−ジオール(100g、529mmol)とシクロヘキサノン(54.5g、555mmol)をトルエンに投入した後、冷却した。0℃で三塩化リン(PCl3)(29g、211.7mmol)を徐々に投入し、室温で攪拌した。反応が終結すると、過剰の水に反応物を投入してクロロホルムで抽出し、これを飽和炭酸水素ナトリウム水溶液で洗浄した後、有機層を分離して無水硫酸ナトリウムでスラリーして濾過後、減圧濃縮した。濃縮した化合物にヘキサンを投入して攪拌し、生成された固体を濾過して化合物A−1(92.6g、収率65%)を製造した。
化合物A−1(100g、371mmol)と(2−クロロ−6−フルオロフェニル)ボロン酸(68g、390mmol)をテトラヒドロフラン1000mLに投入した後、冷却した。2M炭酸カリウム水溶液(aq.K2CO3)(370mL、743mmol)を添加し、テトラキストリフェニルホスフィンパラジウム[Pd(PPh3)4](4.3g、1mol%)を入れた後、6時間還流攪拌した。反応完結後、常温に温度を低め、水層を除去して有機層を減圧濃縮し、濃縮された化合物をクロロホルム500mLに溶かして水で洗浄して分離し、有機層を無水硫酸マグネシウムで処理して濾過した。濾液を減圧濃縮し、過剰のヘキサンと少量の酢酸エチルでスラリーして化合物A−2(86.5g、収率73%)を製造した。
化合物A−2(60g、188mmol)をN−メチル−2−ピロリドン200mLに分散させ、塩酸60mLを添加して加温した。2時間程度反応させた後、室温で冷却し、水1Lに注いで酢酸エチルで抽出した。有機層を飽和炭酸水素ナトリウムで洗浄した後、再び水でさらに1回洗浄した。有機層を無水硫酸マグネシウムでスラリーした後、濾過して減圧濃縮した。濃縮した化合物を過剰のヘキサンを投入して固体を生成し、これを濾過して化合物A−3(36.4g、収率81%)を製造した。
窒素雰囲気で化合物A−3(50g、210mmol)をN−メチル−2−ピロリドン100mLに入れて攪拌した。以降、炭酸カリウム(58g、420mmol)を投入した後、80℃に加温して攪拌した。反応が完結された後、常温に温度を低め、水1Lに反応物を注いで酢酸エチルで抽出した。抽出した混合物に無水硫酸マグネシウムを入れてスラリー後、濾過して濾液を減圧濃縮した。濃縮した化合物をヘキサンと酢酸エチルでシリカカラムクロマトグラフィーを通じて精製して化合物A(34.4g、収率75%)を得た。
MS:[M+H]+=219
(2,4−ジクロロフェニル)ボロン酸(100g、524mmol)と2−ブロモ−6−ヨードアニリン(234g、785.5mmol)をトルエン1500mLに投入した後、炭酸カリウム(217g、1517mmol)を水500mLに溶かして投入し、テトラキストリフェニルホスフィノパラジウム[Pd(PPh3)4](30.3g、5mol%)を入れた後、加温して還流攪拌した。反応完結後、常温に温度を低め、水層を除去して有機層を減圧濃縮し、濃縮された化合物をクロロホルム500mLに溶かして無水硫酸マグネシウムで処理して濾過した。濾液を減圧濃縮し、ヘキサンと酢酸エチルでシリカカラムクロマトグラフィーにより精製して化合物D−1(101.3g、収率61%)を製造した。
化合物D−1(101g、319.5mmol)をメタノールに投入し、温度を0℃に低めてconc. HClを徐々に滴加した。冷却状態で亜硝酸ナトリウム(NaNO2)(22g、319.5mmol)を徐々に滴加した後、チオシアン酸カリウム(KSCN)(99.3g、1022mmol)と塩化鉄(FeCl3)(36.3g、223.6mmol)を投入して室温で攪拌した。反応完了後、2M NaOH水溶液で中和させた。混合物をクロロホルムで抽出して分離し、無水硫酸マグネシウムで乾燥して濃縮した後、シリカカラムを通じて精製して化合物D−2(79g、収率69%)を製造した。
化合物D−2(79g、220mmol)をテトラヒドロフランに投入し、0℃に冷却して水素化アルミニウムリチウム(LiAlH4)(1M in THF)(240mL、240mmol)を徐々に滴加して攪拌した。反応が完了されると、水を徐々に投入して攪拌した後、2M HCl水溶液を投入して酢酸エチルで抽出した。分離した有機層を無水硫酸マグネシウムで乾燥し、減圧濃縮して化合物D−3(64g、収率87%)を製造した。
化合物D−3(64g、191mmol)をアセトニトリル溶媒に投入し、セシウムカーボネート(93.7g、287.6mmol)を添加してマイクロ波照射(microwave irradiation)で130℃で攪拌した。反応が完了されると、水で2回洗浄し、クロロホルムで抽出して有機層を無水硫酸マグネシウムで攪拌した後、濾過して減圧濃縮した。濃縮した化合物をシリカカラムを通じて精製して中間体化合物D(47g、収率83%)を製造した。
MS:[M+H]+=296
化合物A(21g、95mmol)をアセトニトリル200mLに分散させ、炭酸カリウム(26.3g、190mmol)と水40mLを投入し、ノナフルオロブタンスルホニルフルオリド(43g、142.5mmol)を投入して80℃に加温した。6時間反応させた後に混合物を室温で冷却し、溶媒を減圧濃縮して除去した。濃縮された化合物を酢酸エチルに再び溶かした後、水で1回洗浄し、有機層を分離して無水硫酸マグネシウムで処理して濾過後、濃縮して化合物1−1−1(35.1g、収率73%)を製造した。
化合物1−1−1(27g、54mmol)、ビス(ピナコラト)ジボロン(Bis(pinacolato)diborone)(16.4g、64.7mmol)、ポタシウムアセテート(potassium acetate)(10.5g、107mmol)を1,4−ジオキサン150mLに投入し、還流攪拌状態でジベンジリデンアセトンパラジウム(0.9g、3mol%)とトリシクロヘキシルホスフィン(0.9g、6mol%)を添加して12時間還流攪拌した。反応終結後、混合物を室温で冷却し、セライトを通じて濾過した。濾液を減圧下に濃縮した後、残留物にクロロホルムを入れて溶かした後、水で洗浄して有機層を分離した後、無水硫酸マグネシウムで乾燥した。これを濾過して減圧蒸留し、酢酸エチルとエタンオールで攪拌して化合物1−1−2(15.2g、収率86%)を製造した。
化合物1−1−2(25g、76mmol)と2−クロロ−4,6−ジフェニル−1,3,5−トリアジン(20.3g、76mmol)をテトラヒドロフラン200mLに分散させた後、2M炭酸カリウム水溶液(aq. K2CO3)(57mL、114mmol)を添加し、テトラキストリフェニルホスフィノパラジウム[Pd(PPh3)4](0.88g、1mol%)を入れた後、6時間還流攪拌した。常温に温度を低め、水層を分離し、有機層を減圧濃縮した。濃縮された化合物を酢酸エチルに再び溶かした後、水で2回洗浄し、分離して無水硫酸マグネシウムを入れて濾過して濃縮した。濃縮された残留物に少量の酢酸エチルと過剰のヘキサンを投入して攪拌して固体で析出させて1時間攪拌した後、濾過して化合物1−1−3(26.7g、収率81%)を製造した。
化合物1−1−3(22g、50mmol)と(9−フェニル−9H−カルバゾール−3−イル)ボロン酸(15.2g、53mmol)をテトラヒドロフラン(200mL)に分散させた後、2M炭酸カリウム水溶液(aq. K2CO3)(75mL、151mmol)を添加し、テトラキストリフェニルホスフィノパラジウム[Pd(PPh3)4](0.6g、1mol%)を入れた後、6時間攪拌還流した。常温に温度を低め、水層を除去して減圧濃縮し、酢酸エチルを投入して3時間攪拌して析出された固体を濾過した。得られた固体をクロロホルムに再び溶かし、水で洗浄した後、分離して無水硫酸マグネシウムと酸性白土で処理して濾過した。濾液を減圧濃縮して半分程度除去した後、酢酸エチルを投入して再結晶を通じて化合物1−1(26.3g、収率81%)を製造した。
MS:[M+H]+=641
MS:[M+H]+=641
3−ブロモ−9H−カルバゾール(15g、61mmol)と(9−フェニル−9H−カルバゾール−3−イル)ボロン酸(18.4g、64mmol)をテトラヒドロフラン150mLに分散させた後、2M炭酸カリウム水溶液(aq. K2CO3)(60mL、120mmol)を添加し、テトラキストリフェニルホスフィノパラジウム[Pd(PPh3)4](1.03g、1mol%)を入れた後、8時間還流攪拌した。反応が完結されると、常温に温度を低め、水層を除去して有機層を減圧濃縮し、酢酸エチルを投入して攪拌した。生成された固体を濾過して化合物2−1−1(30g、収率82%)を製造した。
化合物2−1−1(12g、30mmol)と2−ブロモ−9−フェニル−9H−カルバゾール(9.5g、30mmol)をトルエン150mLに投入して溶かし、ナトリウム−tert−ブトキシド(5.6g、59mmol)を添加して加温した。ビス(トリ−tert−ブチルホスフィン)パラジウム(0.15g、1mol%)を投入して12時間還流攪拌した。反応完了後、常温に温度を低めた後、生成された固体を濾過した。薄い黄色の固体をクロロホルムで溶かし、水で2回洗浄後に有機層を分離し、無水硫酸マグネシウムと酸性白土を入れて攪拌した後、濾過して減圧濃縮した。濃縮した化合物をクロロホルムと酢酸エチルで再結晶して白色の固体化合物である化合物2−1(14.5g、収率76%)を得た。
MS:[M+H]+=650
MS:[M+H]+=637
MS:[M+H]+=591
ITO(indium tin oxide)が1,300Åの厚さに薄膜コーティングされたガラス基板を洗剤を溶かした蒸溜水に入れて超音波で洗浄した。この時、洗剤としては、フィッシャー社(Fischer Co.)製品を用い、蒸溜水としてはミリポア社 (Millipore Co.)製品のフィルター(Filter)で2次濾過された 蒸留水を用いた。ITOを30分間洗浄した後、蒸溜水で2回繰り返して超音波洗浄を10分間行った。蒸溜水洗浄が終わった後、イソプロピルアルコール、アセトン、メタノールの溶剤で超音波洗浄を行い、乾燥させた後、プラズマ洗浄機に輸送させた。また、酸素プラズマを利用して前記基板を5分間洗浄した後、真空蒸着器に基板を輸送させた。
前記実験例1と同様な方法で製造し、発光層の形成時に燐光ホスト物質およびドーパント含有量を下記表1のように変更した点を除いては、前記実験例1と同様な方法を利用して有機発光素子をそれぞれ製作した。
前記実験例1と同様な方法で製造し、発光層の形成時に燐光ホスト物質およびドーパント含有量を下記表1のように変更した点を除いては、前記実験例1と同様な方法を利用して有機発光素子をそれぞれ製作した。この時、用いられたホスト物質AからCは下記のとおりである。
2:陽極
3:発光層
4:陰極
5:正孔注入層
6:正孔輸送層
7:発光層
8:電子輸送層
Claims (15)
- 陰極;陽極;および前記陰極と陽極との間に少なくとも一つ以上の発光層を含み、
前記発光層は、下記化学式1で表される第1ホスト化合物および下記化学式2で表される第2ホスト化合物を含む、有機発光素子:
[化学式1]
R1は、置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC3−60シクロアルキル;置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、
R2およびR3は、それぞれ独立に、水素;重水素;ハロゲン;シアノ;置換もしくは非置換のC1−60アルキル;または置換もしくは非置換のC3−60シクロアルキルであり、
nは、0から4の整数であり、
mは、0から3の整数であり、
Yは、O、S、またはCR4R5であり、
R4およびR5は、それぞれ独立に、水素;重水素;ハロゲン;シアノ;置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC3−60シクロアルキル;または置換もしくは非置換のC6−60アリールであり、
Arは、下記化学式1'で表され、
[化学式1']
X1からX3は、それぞれ独立に、N、またはCR6であり、ただし、X1からX3のうちの少なくとも一つはNであり、
R6は、それぞれ独立に、水素;重水素;ハロゲン;シアノ;ニトロ;アミノ;置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC1−60ハロアルキル;置換もしくは非置換のC1−60ハロアルコキシ;置換もしくは非置換のC3−60シクロアルキル;置換もしくは非置換のC2−60アルケニル;置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、
Ar1およびAr2は、それぞれ独立に、置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、
[化学式2]
R'1は、置換もしくは非置換のC6−60アリールであり、
R'2およびR'3は、それぞれ独立に、水素;重水素;ハロゲン;シアノ;置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC3−60シクロアルキル;置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、
n'およびm'は、それぞれ独立に、0から4の整数であり、
L'は、単一結合;置換もしくは非置換のC6−60アリーレンであり、
Y'は、O、S、NR'、またはCR'R"であり、
R'およびR"は、それぞれ独立に、置換もしくは非置換のC1−60アルキル;置換もしくは非置換のC3−60シクロアルキル;置換もしくは非置換のC6−60アリール;または置換もしくは非置換のO、N、SiおよびSのうちの1個以上を含むC2−60ヘテロアリールであり、またはR'およびR"が共に置換もしくは非置換のC6−60芳香族環を形成する。 - R1は、フェニル;またはビフェニリルである、請求項1または2に記載の有機発光素子。
- R2およびR3は、水素である、請求項1から3のいずれか一項に記載の有機発光素子。
- Yは、S、またはOである、請求項1から4のいずれか一項に記載の有機発光素子。
- Lは、単一結合、またはフェニレンである、請求項1から5のいずれか一項に記載の有機発光素子。
- Ar1およびAr2は、それぞれ独立に、フェニル、シアノで置換されたフェニル、ビフェニリル、ジメチルフルオレニル、ナフチル、フェナントレニル、ピリジニル、ジベンゾフラニル、またはジベンゾチオフェニルである、請求項1から6のいずれか一項に記載の有機発光素子。
- R'1は、シクロヘキシル、フェニル、シアノで置換されたフェニル、ビフェニリル、テルフェニリル、ナフチル、フェナントレニル、トリフェニレニル、ジメチルフルオレニル、ピリジニル、ジベンゾフラニル、ジベンゾチオフェニル、または9−フェニル−カルバゾリルである、請求項1から8のいずれか一項に記載の有機発光素子。
- n'は、1であり、
R'2は、水素、またはフェニルである、請求項1から9のいずれか一項に記載の有機発光素子。 - m'は、1であり、
R'3は、水素、tert−ブチル、シアノ、フェニル、シアノで置換されたフェニル、またはピリジニルである、請求項1から10のいずれか一項に記載の有機発光素子。 - Y'は、O、S、またはNR'であり、
R'は、フェニル、またはビフェニリルである、請求項1から11のいずれか一項に記載の有機発光素子。 - Y'は、CR'R"であり、
R'およびR"は、メチルであるか、またはR'およびR"が共にフルオレン環を形成する、請求項1から11のいずれか一項に記載の有機発光素子。 - L'は、単一結合、またはフェニレンである、請求項1から13のいずれか一項に記載の有機発光素子。
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