JP2018168143A - 含リン化合物及びこれを含む有機電界発光素子 - Google Patents
含リン化合物及びこれを含む有機電界発光素子 Download PDFInfo
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- JP2018168143A JP2018168143A JP2017238912A JP2017238912A JP2018168143A JP 2018168143 A JP2018168143 A JP 2018168143A JP 2017238912 A JP2017238912 A JP 2017238912A JP 2017238912 A JP2017238912 A JP 2017238912A JP 2018168143 A JP2018168143 A JP 2018168143A
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 122
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 76
- 239000011574 phosphorus Substances 0.000 title claims abstract description 76
- 238000005401 electroluminescence Methods 0.000 title claims abstract description 22
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 133
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 56
- 125000003118 aryl group Chemical group 0.000 claims abstract description 56
- 125000001072 heteroaryl group Chemical group 0.000 claims abstract description 49
- 125000005843 halogen group Chemical group 0.000 claims abstract description 42
- 229910052805 deuterium Inorganic materials 0.000 claims abstract description 38
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 16
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims description 136
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 53
- 230000005525 hole transport Effects 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 42
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 claims description 39
- 125000004431 deuterium atom Chemical group 0.000 claims description 37
- 125000003277 amino group Chemical group 0.000 claims description 27
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 claims description 20
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 18
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 150000001721 carbon Chemical class 0.000 claims description 10
- 230000003111 delayed effect Effects 0.000 claims description 9
- 125000001624 naphthyl group Chemical group 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 125000004076 pyridyl group Chemical group 0.000 claims description 5
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
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- 230000000052 comparative effect Effects 0.000 description 16
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- 125000001424 substituent group Chemical group 0.000 description 11
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- 0 *c(c(*)c1*c2c(*)c(*)c(*)c(*)c22)c(*)c(*)c1P2(*)=S Chemical compound *c(c(*)c1*c2c(*)c(*)c(*)c(*)c22)c(*)c(*)c1P2(*)=S 0.000 description 8
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- WWTBZEKOSBFBEM-SPWPXUSOSA-N (2s)-2-[[2-benzyl-3-[hydroxy-[(1r)-2-phenyl-1-(phenylmethoxycarbonylamino)ethyl]phosphoryl]propanoyl]amino]-3-(1h-indol-3-yl)propanoic acid Chemical compound N([C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)O)C(=O)C(CP(O)(=O)[C@H](CC=1C=CC=CC=1)NC(=O)OCC=1C=CC=CC=1)CC1=CC=CC=C1 WWTBZEKOSBFBEM-SPWPXUSOSA-N 0.000 description 7
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- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- 238000005481 NMR spectroscopy Methods 0.000 description 6
- 239000002019 doping agent Substances 0.000 description 6
- 125000000623 heterocyclic group Chemical group 0.000 description 6
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- 125000004429 atom Chemical group 0.000 description 5
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- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- ATTVYRDSOVWELU-UHFFFAOYSA-N 1-diphenylphosphoryl-2-(2-diphenylphosphorylphenoxy)benzene Chemical compound C=1C=CC=CC=1P(C=1C(=CC=CC=1)OC=1C(=CC=CC=1)P(=O)(C=1C=CC=CC=1)C=1C=CC=CC=1)(=O)C1=CC=CC=C1 ATTVYRDSOVWELU-UHFFFAOYSA-N 0.000 description 4
- KGNDCEVUMONOKF-UGPLYTSKSA-N benzyl n-[(2r)-1-[(2s,4r)-2-[[(2s)-6-amino-1-(1,3-benzoxazol-2-yl)-1,1-dihydroxyhexan-2-yl]carbamoyl]-4-[(4-methylphenyl)methoxy]pyrrolidin-1-yl]-1-oxo-4-phenylbutan-2-yl]carbamate Chemical compound C1=CC(C)=CC=C1CO[C@H]1CN(C(=O)[C@@H](CCC=2C=CC=CC=2)NC(=O)OCC=2C=CC=CC=2)[C@H](C(=O)N[C@@H](CCCCN)C(O)(O)C=2OC3=CC=CC=C3N=2)C1 KGNDCEVUMONOKF-UGPLYTSKSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 229940125833 compound 23 Drugs 0.000 description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 125000003367 polycyclic group Chemical group 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 4
- TYHJXGDMRRJCRY-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) tin(4+) Chemical compound [O-2].[Zn+2].[Sn+4].[In+3] TYHJXGDMRRJCRY-UHFFFAOYSA-N 0.000 description 4
- MBPCKEZNJVJYTC-UHFFFAOYSA-N 4-[4-(n-phenylanilino)phenyl]aniline Chemical compound C1=CC(N)=CC=C1C1=CC=C(N(C=2C=CC=CC=2)C=2C=CC=CC=2)C=C1 MBPCKEZNJVJYTC-UHFFFAOYSA-N 0.000 description 3
- 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
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000007983 Tris buffer Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
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- 230000004048 modification Effects 0.000 description 3
- 125000002950 monocyclic group Chemical group 0.000 description 3
- 239000012044 organic layer Substances 0.000 description 3
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 3
- 238000010898 silica gel chromatography Methods 0.000 description 3
- 238000001771 vacuum deposition Methods 0.000 description 3
- NGQSLSMAEVWNPU-YTEMWHBBSA-N 1,2-bis[(e)-2-phenylethenyl]benzene Chemical compound C=1C=CC=CC=1/C=C/C1=CC=CC=C1\C=C\C1=CC=CC=C1 NGQSLSMAEVWNPU-YTEMWHBBSA-N 0.000 description 2
- IYZMXHQDXZKNCY-UHFFFAOYSA-N 1-n,1-n-diphenyl-4-n,4-n-bis[4-(n-phenylanilino)phenyl]benzene-1,4-diamine Chemical compound C1=CC=CC=C1N(C=1C=CC(=CC=1)N(C=1C=CC(=CC=1)N(C=1C=CC=CC=1)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 IYZMXHQDXZKNCY-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
- IXHWGNYCZPISET-UHFFFAOYSA-N 2-[4-(dicyanomethylidene)-2,3,5,6-tetrafluorocyclohexa-2,5-dien-1-ylidene]propanedinitrile Chemical compound FC1=C(F)C(=C(C#N)C#N)C(F)=C(F)C1=C(C#N)C#N IXHWGNYCZPISET-UHFFFAOYSA-N 0.000 description 2
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- ZVFQEOPUXVPSLB-UHFFFAOYSA-N 3-(4-tert-butylphenyl)-4-phenyl-5-(4-phenylphenyl)-1,2,4-triazole Chemical compound C1=CC(C(C)(C)C)=CC=C1C(N1C=2C=CC=CC=2)=NN=C1C1=CC=C(C=2C=CC=CC=2)C=C1 ZVFQEOPUXVPSLB-UHFFFAOYSA-N 0.000 description 2
- MAGFQRLKWCCTQJ-UHFFFAOYSA-M 4-ethenylbenzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=C(C=C)C=C1 MAGFQRLKWCCTQJ-UHFFFAOYSA-M 0.000 description 2
- VIZUPBYFLORCRA-UHFFFAOYSA-N 9,10-dinaphthalen-2-ylanthracene Chemical compound C12=CC=CC=C2C(C2=CC3=CC=CC=C3C=C2)=C(C=CC=C2)C2=C1C1=CC=C(C=CC=C2)C2=C1 VIZUPBYFLORCRA-UHFFFAOYSA-N 0.000 description 2
- LTUJKAYZIMMJEP-UHFFFAOYSA-N 9-[4-(4-carbazol-9-yl-2-methylphenyl)-3-methylphenyl]carbazole Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(C=2C(=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C)C(C)=C1 LTUJKAYZIMMJEP-UHFFFAOYSA-N 0.000 description 2
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- IMKMFBIYHXBKRX-UHFFFAOYSA-M lithium;quinoline-2-carboxylate Chemical compound [Li+].C1=CC=CC2=NC(C(=O)[O-])=CC=C21 IMKMFBIYHXBKRX-UHFFFAOYSA-M 0.000 description 2
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- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
- 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 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- XZCJVWCMJYNSQO-UHFFFAOYSA-N butyl pbd Chemical compound C1=CC(C(C)(C)C)=CC=C1C1=NN=C(C=2C=CC(=CC=2)C=2C=CC=CC=2)O1 XZCJVWCMJYNSQO-UHFFFAOYSA-N 0.000 description 1
- OZOREHGXDBUTAE-UHFFFAOYSA-O c(cc1)ccc1N(c1ccccc1)c1ccc2[PH+](c3ccccc3)c(cccc3)c3Sc2c1 Chemical compound c(cc1)ccc1N(c1ccccc1)c1ccc2[PH+](c3ccccc3)c(cccc3)c3Sc2c1 OZOREHGXDBUTAE-UHFFFAOYSA-O 0.000 description 1
- ZHDBIIBOKSTDIN-UHFFFAOYSA-N c(cc1)ccc1N1c2ccccc2N(c2ccc3P(c4ccccc4)c(cccc4)c4Sc3c2)c2c1cccc2 Chemical compound c(cc1)ccc1N1c2ccccc2N(c2ccc3P(c4ccccc4)c(cccc4)c4Sc3c2)c2c1cccc2 ZHDBIIBOKSTDIN-UHFFFAOYSA-N 0.000 description 1
- YVVVSJAMVJMZRF-UHFFFAOYSA-N c1cncc(c1)-c1cccc(c1)-c1cccc(c1)-c1nc(nc(n1)-c1cccc(c1)-c1cccc(c1)-c1cccnc1)-c1cccc(c1)-c1cccc(c1)-c1cccnc1 Chemical compound c1cncc(c1)-c1cccc(c1)-c1cccc(c1)-c1nc(nc(n1)-c1cccc(c1)-c1cccc(c1)-c1cccnc1)-c1cccc(c1)-c1cccc(c1)-c1cccnc1 YVVVSJAMVJMZRF-UHFFFAOYSA-N 0.000 description 1
- XJHCXCQVJFPJIK-UHFFFAOYSA-M caesium fluoride Inorganic materials [F-].[Cs+] XJHCXCQVJFPJIK-UHFFFAOYSA-M 0.000 description 1
- 150000001716 carbazoles Chemical class 0.000 description 1
- 125000005566 carbazolylene group Chemical group 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 125000006165 cyclic alkyl group Chemical group 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([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
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- DKHNGUNXLDCATP-UHFFFAOYSA-N dipyrazino[2,3-f:2',3'-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile Chemical compound C12=NC(C#N)=C(C#N)N=C2C2=NC(C#N)=C(C#N)N=C2C2=C1N=C(C#N)C(C#N)=N2 DKHNGUNXLDCATP-UHFFFAOYSA-N 0.000 description 1
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 125000005549 heteroarylene group Chemical group 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical group I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002602 lanthanoids Chemical group 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 125000000250 methylamino group Chemical group [H]N(*)C([H])([H])[H] 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 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
- 125000005184 naphthylamino group Chemical group C1(=CC=CC2=CC=CC=C12)N* 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
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000005564 oxazolylene group Chemical group 0.000 description 1
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical group [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical class N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 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 1
- 125000005550 pyrazinylene group Chemical group 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 150000003839 salts Chemical class 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
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- WSANLGASBHUYGD-UHFFFAOYSA-N sulfidophosphanium Chemical group S=[PH3] WSANLGASBHUYGD-UHFFFAOYSA-N 0.000 description 1
- 238000001308 synthesis method Methods 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
- 125000005730 thiophenylene group Chemical group 0.000 description 1
- 125000005559 triazolylene group Chemical group 0.000 description 1
- 125000005580 triphenylene group Chemical group 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 125000001834 xanthenyl group Chemical group C1=CC=CC=2OC3=CC=CC=C3C(C12)* 0.000 description 1
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Abstract
Description
化学式2は下記の化学式2−1〜化学式2−5の中でいずれか1つで表示される。
R1〜R8の中で少なくとも1つは下記の化学式2で表示される。
本明細書で、ハロゲン原子の例としては弗素原子、塩素原子、臭素原子又はヨウ化物原子がある。
本明細書で、フルオレニル基は、置換されることができ、置換基2つが互いに結合してスピロ構造を形成することもできる。
化学式1は下記の化学式1−1〜化学式1−6の中でいずれか1つで表示される。
化学式2は下記の化学式2−1〜化学式2−5の中でいずれか1つで表示される。
正孔輸送領域HTRが正孔注入層HIL及び正孔輸送層HTLを含む場合、正孔注入層HILは公知の正孔注入材料を含む。
動電圧となる。
先ず、本発明の一実施形態にしたがう含リン化合物の合成方法に対して、化合物群の化合物21、化合物22及び化合物23の合成方法を例示して具体的に説明する。また、以下に説明する含リン化合物の合成法は一実施例として、本発明の実施形態にしたがう含リン化合物の合成法が下記の実施例に限定されない。
一実施形態の含リン化合物を発光層に含む一実施例の有機電界発光素子を下の方法で製造した。上述した化合物21及び化合物22の含リン化合物を発光層材料として使用して実施例1〜実施例2の有機電界発光素子を製作した。比較例1は下記の比較例化合物C1を発光層材料として使用して有機電界発光素子を製作した。実施例1〜2及び比較例1で発光層を形成するのに使用した化合物は表1で示した。
実施例及び比較例による有機電界発光素子の特性を評価するために外部量子効率の最大値及び電流密度10mA/cm2での外部量子効率値を評価した。有機電界発光素子の電圧及び
電流密度はソースメーター(Keithley Instrument社、2400 series)を利用して測定し、輝度及び外部量子効率は浜松Photonics社の外部量子効率測定装置C9920−12を使用して測定した。
発光半値幅(nm)=λ2−λ1
したがって、本発明の技術的範囲は明細書の詳細な説明に記載された内容に限定されることなく、特許請求の範囲によって定まらなければならない。
EL1 第1電極
HTR 正孔輸送領域
EML 発光層
ETR 電子輸送領域
EL2 第2電極
Claims (15)
- 下記の化学式1で表示される含リン化合物。
Xは、O、S、NRa、CRbRc、SiRdRe、又はGeRfRgであり、
R1〜R8は、各々独立的に、水素原子、重水素原子、ハロゲン原子、置換若しくは非置換のシリル基、置換若しくは非置換のアミノ基、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、又は置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であり、
R9は、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、又は置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であり、
Ra〜Rgは、各々独立的に、水素原子、重水素原子、ハロゲン原子、置換若しくは非置換のシリル基、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換のフルオレニル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であるか、又は隣接する基と互いに結合して環を形成し、
前記R1〜R8の中で少なくとも1つは、下記の化学式2で表示され、
nは0又は1であり、
Yは、直接結合(direct linkage)、O、S、CRhRi、SiRjRk、又はGeRlRmであり、
R10〜R17は、各々独立的に、水素原子、重水素原子、ハロゲン原子、置換若しくは非置換のシリル基、置換若しくは非置換のアミノ基、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、又は置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であり、
Rh〜Rmは、各々独立的に、水素原子、重水素原子、ハロゲン原子、置換若しくは非置換のシリル基、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換のフルオレニル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であるか、又は隣接する基と互いに結合して環を形成し、*は結合の位置を表す。 - 前記R9は、置換若しくは非置換のフェニル基である請求項1に記載の含リン化合物。
- 前記R9は、置換若しくは非置換のピリジル基、又は置換若しくは非置換のナフチル基である請求項1に記載の含リン化合物。
- 前記R1〜R8の中でいずれか1つは、前記化学式2で表示され、残りは、水素原子である請求項1に記載の含リン化合物。
- 前記Raは、置換若しくは非置換の環形成炭素数6以上30以下のアリール基であり、前記Rb〜Rgは、置換若しくは非置換の炭素数1以上20以下のアルキル基、又は置換若しくは非置換の環形成炭素数6以上30以下のアリール基である請求項6に記載の含リン化合物。
- 第1電極と、
前記第1電極上に配置された正孔輸送領域と、
前記正孔輸送領域上に配置された発光層と、
前記発光層上に配置された電子輸送領域と、
前記電子輸送領域上に配置された第2電極と、を含み、
前記発光層は、下記の化学式1で表示される含リン化合物を含むことを特徴とする有機電界発光素子。
Xは、O、S、NRa、CRbRc、SiRdRe、又はGeRfRgであり、
R1〜R8は、各々独立に、水素原子、重水素原子、ハロゲン原子、置換若しくは非置換のシリル基、置換若しくは非置換のアミノ基、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、又は置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であり、
R9は、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、又は置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であり、
Ra〜Rgは、各々独立に、水素原子、重水素原子、ハロゲン原子、置換若しくは非置換のシリル基、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換のフルオレニル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であるか、又は隣接する基と互いに結合して環を形成し、
前記R1〜R8の中で少なくとも1つは、下記の化学式2で表示され、
nは0又は1であり、
Yは、直接結合、O、S、CRhRi、SiRjRk、又はGeRlRmであり、
R10〜R17は、各々独立に、水素原子、重水素原子、ハロゲン原子、置換若しくは非置換のシリル基、置換若しくは非置換のアミノ基、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、又は置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であり、
Rh〜Rmは、各々独立に、水素原子、重水素原子、ハロゲン原子、置換若しくは非置換のシリル基、置換若しくは非置換の炭素数1以上20以下のアルキル基、置換若しくは非置換のフルオレニル基、置換若しくは非置換の環形成炭素数6以上30以下のアリール基、置換若しくは非置換の環形成炭素数4以上30以下のヘテロアリール基であるか、又は隣接する基と互いに結合して環を形成する。 - 前記化学式1で表示される含リン化合物は、熱活性化遅延蛍光材料である請求項10に記載の有機電界発光素子。
- 前記R9は、置換若しくは非置換のフェニル基、置換若しくは非置換のピリジル基、又は置換若しくは非置換のナフチル基である請求項10に記載の有機電界発光素子。
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