JP5760217B2 - 有機金属錯体及びこれを用いた有機発光素子 - Google Patents
有機金属錯体及びこれを用いた有機発光素子 Download PDFInfo
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- JP5760217B2 JP5760217B2 JP2011168943A JP2011168943A JP5760217B2 JP 5760217 B2 JP5760217 B2 JP 5760217B2 JP 2011168943 A JP2011168943 A JP 2011168943A JP 2011168943 A JP2011168943 A JP 2011168943A JP 5760217 B2 JP5760217 B2 JP 5760217B2
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- organometallic complex
- organic light
- light emitting
- compound
- alkyl group
- Prior art date
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- 125000002524 organometallic group Chemical group 0.000 title claims description 79
- 125000000217 alkyl group Chemical group 0.000 claims description 43
- 150000002894 organic compounds Chemical class 0.000 claims description 32
- 125000004432 carbon atom Chemical group C* 0.000 claims description 30
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 18
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 125000004104 aryloxy group Chemical group 0.000 claims description 7
- 229910052741 iridium Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 107
- 150000001875 compounds Chemical class 0.000 description 100
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 42
- 239000003446 ligand Substances 0.000 description 34
- 239000000243 solution Substances 0.000 description 31
- 238000000859 sublimation Methods 0.000 description 31
- 230000008022 sublimation Effects 0.000 description 31
- 230000015572 biosynthetic process Effects 0.000 description 27
- 239000000463 material Substances 0.000 description 27
- 238000003786 synthesis reaction Methods 0.000 description 26
- JNELGWHKGNBSMD-UHFFFAOYSA-N xanthone Chemical group C1=CC=C2C(=O)C3=CC=CC=C3OC2=C1 JNELGWHKGNBSMD-UHFFFAOYSA-N 0.000 description 25
- 238000006243 chemical reaction Methods 0.000 description 24
- 238000006862 quantum yield reaction Methods 0.000 description 19
- 125000001424 substituent group Chemical group 0.000 description 17
- 238000002347 injection Methods 0.000 description 15
- 239000007924 injection Substances 0.000 description 15
- 238000000746 purification Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 12
- 239000002904 solvent Substances 0.000 description 12
- 230000005525 hole transport Effects 0.000 description 11
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 10
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical class CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 10
- 239000012299 nitrogen atmosphere Substances 0.000 description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 8
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- 238000010898 silica gel chromatography Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 239000010409 thin film Substances 0.000 description 8
- 239000003153 chemical reaction reagent Substances 0.000 description 7
- 239000010408 film Substances 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 238000004128 high performance liquid chromatography Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000000470 constituent Substances 0.000 description 5
- 239000012043 crude product Substances 0.000 description 5
- 238000000295 emission spectrum Methods 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 230000009878 intermolecular interaction Effects 0.000 description 5
- 238000001840 matrix-assisted laser desorption--ionisation time-of-flight mass spectrometry Methods 0.000 description 5
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Chemical group COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 5
- 238000001269 time-of-flight mass spectrometry Methods 0.000 description 5
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 4
- 229940093475 2-ethoxyethanol Drugs 0.000 description 4
- DIPAOXVYMJHVLQ-UHFFFAOYSA-N 2-pyridin-2-ylxanthen-9-one Chemical compound C1=C2C(=O)C3=CC=CC=C3OC2=CC=C1C1=CC=CC=N1 DIPAOXVYMJHVLQ-UHFFFAOYSA-N 0.000 description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- LSZMVESSGLHDJE-UHFFFAOYSA-N 2-bromo-4-methylpyridine Chemical compound CC1=CC=NC(Br)=C1 LSZMVESSGLHDJE-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 238000002076 thermal analysis method Methods 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- 150000003613 toluenes Chemical class 0.000 description 3
- -1 triazole derivatives Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 125000006575 electron-withdrawing group Chemical group 0.000 description 2
- 230000005281 excited state Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 150000002220 fluorenes Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004811 liquid chromatography Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 2
- 229920000123 polythiophene Polymers 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 150000003248 quinolines Chemical class 0.000 description 2
- 150000003252 quinoxalines Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000001308 synthesis method Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000004809 thin layer chromatography Methods 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- AWBDARKONATUHX-UHFFFAOYSA-N 2-bromo-4-methoxypyridine Chemical compound COC1=CC=NC(Br)=C1 AWBDARKONATUHX-UHFFFAOYSA-N 0.000 description 1
- IMRWILPUOVGIMU-UHFFFAOYSA-N 2-bromopyridine Chemical compound BrC1=CC=CC=N1 IMRWILPUOVGIMU-UHFFFAOYSA-N 0.000 description 1
- DYQUGFRRGGOYCA-UHFFFAOYSA-N 2-bromoxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC(Br)=CC=C3OC2=C1 DYQUGFRRGGOYCA-UHFFFAOYSA-N 0.000 description 1
- XVMSFILGAMDHEY-UHFFFAOYSA-N 6-(4-aminophenyl)sulfonylpyridin-3-amine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=N1 XVMSFILGAMDHEY-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910001148 Al-Li alloy Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920000265 Polyparaphenylene Chemical class 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229940027991 antiseptic and disinfectant quinoline derivative Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001716 carbazoles Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000007350 electrophilic reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004770 highest occupied molecular orbital Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 150000002503 iridium Chemical class 0.000 description 1
- LNJXVUXPFZKMNF-UHFFFAOYSA-K iridium(3+);trichloride;trihydrate Chemical compound O.O.O.Cl[Ir](Cl)Cl LNJXVUXPFZKMNF-UHFFFAOYSA-K 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- SJCKRGFTWFGHGZ-UHFFFAOYSA-N magnesium silver Chemical compound [Mg].[Ag] SJCKRGFTWFGHGZ-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000004866 oxadiazoles Chemical class 0.000 description 1
- 150000007978 oxazole derivatives Chemical class 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 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
- 150000005041 phenanthrolines Chemical class 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 150000004986 phenylenediamines Chemical class 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
- 239000004014 plasticizer Substances 0.000 description 1
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000642 polymer Chemical class 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 150000004033 porphyrin derivatives Chemical class 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 150000003216 pyrazines Chemical class 0.000 description 1
- XVNMKAYANFKKPW-UHFFFAOYSA-N pyridine;xanthen-9-one Chemical group C1=CC=NC=C1.C1=CC=C2C(=O)C3=CC=CC=C3OC2=C1 XVNMKAYANFKKPW-UHFFFAOYSA-N 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 229940042055 systemic antimycotics triazole derivative Drugs 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 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 1
- 125000005259 triarylamine group Chemical group 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- 125000006617 triphenylamine group Chemical class 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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Description
(A1)a+b=3
(A2)aは2又は3
またMがPtの場合、a及びbについて、下記(B1)及び(B2)が満たされる。
(B1)a+b=2
(B2)aは1又は2)
(A1)a+b=3
(A2)aは2又は3
(B1)a+b=2
(B2)aは1又は2
(C1)R1、R2及びR4が水素原子
(C2)R3が水素原子又は炭素数が1乃至4のアルキル基
(i)キサントン骨格とピリジン骨格とが単結合によって結合してなる配位子
(ii)アセチルアセトン誘導体
(a)R7:水素原子、炭素数が1乃至4のアルキル基
(b)R8:水素原子、炭素数が1乃至4のアルキル基
(c)R9:水素原子、炭素数が1乃至4のアルキル基、炭素数が1乃至6のアルコキシ基、アリールオキシ基
(d)R10:水素原子、炭素数が1乃至4のアルキル基
主配位子に含まれるキサントン骨格は、電子吸引基のカルボニル基を有しているため、電子親和力が高い。また、キサントン単体の三重項エネルギーは3.02eV(410nm)と高い三重項エネルギーを持っている。尚、主配位子のうち置換がまったく導入されていない配位子の三重項エネルギーは2.85eV(435nm)である。
上述した主配位子を有機金属錯体に(具体的には、イリジウム錯体やプラチナ錯体の配位子として)導入した場合、主配位子に含まれるキサントンが有する高い電子親和力によって、有機金属錯体の中心金属の電子密度を下げることができる。このため、有機金属錯体のHOMO準位を効果的に深くすることができる。その結果、有機金属錯体のバンドギャップが広くなる。例えば、fac−Ir(ppy)3は510nmの緑色発光を示すが、下記に示される本発明の有機金属錯体である例示化合物C01は、470nmの青色発光を示す。
本発明の有機金属錯体に含まれている主配位子は、基本骨格中にキサントン及びピリジンを有している。ここでキサントンとピリジンとの結合位置を考えると、キサントンとピリジンとが結合してなる化合物はいくつか考えられる。ここで発明者らは、キサントンの2位の炭素とピリジンの2位の炭素とを単結合によって結合されてなる化合物である2−(ピリジン−2−イル)−キサントンに着目した。そして発明者らは、主配位子の基本骨格となる化合物である2−(ピリジン−2−イル)−キサントンが、有機金属錯体の中心金属の電子密度を小さくすることができることを見出した。また2−(ピリジン−2−イル)−キサントンを含む有機金属錯体が最も短波長の発光を示すことも見出した。
本発明の有機金属錯体は、式(1)に示されるように、主配位子の所定の位置(R1乃至R4)に置換基を導入することができる。
[具体例1](陽極/)発光層(/陰極)
[具体例2](陽極/)ホール輸送層/電子輸送層(/陰極)
[具体例3](陽極/)ホール輸送層/発光層/電子輸送層(/陰極)
[具定例4](陽極/)ホール注入層/ホール輸送層/発光層/電子輸送層(/陰極)
[具体例5](陽極/)/ホール輸送層/発光層/ホール・エキシトンブロック層/電子輸送層(/陰極)
下記に示す合成スキームに従って、例示化合物E01を合成した。
反応容器に、以下に示す試薬、溶媒を仕込んだ。
化合物X01(2−ブロモ−9H−キサンテン−9−オン):6.00g(21.8mmol)
ビスピナコラトジボロン:6.64g(26.2mmol)
ビストリフェニルホスフィンパラジウムジクロリド:460mg(0.654mmol)
酢酸カリウム:6.421g(65.4mmol)
1,4−ジオキサン:200ml
反応容器に、以下に示す試薬、溶媒を仕込んだ。
中間化合物X02:5.00g(15.5mmol)
2−ブロモ−4−メチルピリジン:2.66g(15.5mmol)
テトラキストリフェニルホスフィンパラジウム:539mg(0.466mmol)
トルエン:200ml
エタノール:50ml
2M炭酸ナトリウム水溶液:50ml
反応容器に、以下に示す試薬、溶媒を仕込んだ。
三塩化イリジウム三水和物:500mg(1.42mmol)
中間化合物X03:1.22g(4.26mmol)
2−エトキシエタノール:15ml
水:5ml
反応容器に、以下に示す試薬、溶媒を仕込んだ。
中間化合物X04:700mg(0.437mmol)
アセチルアセトン:437mg(4.37mmol)
炭酸ナトリウム:463mg(4.37mmol)
2−エトキシエタノール:20ml
下記に示す合成スキームに従って、例示化合物C01を合成した。
例示化合物E01:500mg(0.578mmol)
中間化合物X03:498mg(1.73mmol)
グリセロール:25ml
実施例1(3)において、中間化合物X03の代わりに下記に示す化合物X05を用いた他は、実施例1及び2の方法を併用して例示化合物D01を合成した。尚、化合物X05は、実施例1(2)において、2−ブロモ−4−メチルピリジンの代わりに、2−ブロモ−4−メトキシピリジンを用いることで合成が可能である。
実施例1(3)において、中間化合物X03の代わりに下記に示す化合物X06を用いた他は、実施例1及び2の方法を併用して例示化合物C15を合成した。
下記に示す合成スキームに従って、例示化合物E03を合成した。
反応容器に、以下に示す試薬、溶媒を仕込んだ。
塩化白金(II):500mg(1.88mmol)
中間化合物X03:513mg(1.79mmol)
2−エトキシエタノール:15ml
水:5ml
反応容器に、以下に示す試薬、溶媒を仕込んだ。
中間化合物X07:500mg(0.484mmol)
アセチルアセトン:484mg(4.84mmol)
炭酸ナトリウム:513mg(4.84mmol)
2−エトキシエタノール:20ml
実施例5(1)において、中間化合物X03の代わりに化合物X05を用いた他は、実施例5と同様の方法により、例示化合物F03を合成した。また実施例5と同様の方法で例示化合物F03の発光特性を測定したところ、極大発光波長は461nm、量子収率は0.03であった。
実施例5(1)において、中間化合物X03の代わりに化合物X06を用いた他は、実施例5と同様の方法により、例示化合物E08を合成した。また実施例5と同様の方法で例示化合物E08の発光特性を測定したところ、極大発光波長は470nm、量子収率は0.11であった。
陽極、正孔注入層、正孔輸送層、発光層、電子輸送層及び陰極がこの順に積層してなる有機発光素子を、以下に示す方法により作製した。ここで、本実施例で使用した化合物の一部を以下に示す。
実施例8において、発光層に含まれるドーパントとして、例示化合物C01の代わりに例示化合物D01を用いたことを除いては、実施例8と同様の方法により有機発光素子を作製した。得られた有機発光素子について、実施例8と同様に素子の特性を測定・評価した。その結果、発光輝度1000cd/m2のとき、CIE標準表色でx=0.15,y=0.28の青色発光を示し、外部量子収率8.2%という高い発光効率を示した。また本実施例の有機発光素子を、窒素雰囲気下で100時間連続して電圧を印加したところ、良好な発光が継続していることが確認された。
実施例8において、発光層に含まれるドーパントとして、例示化合物C01の代わりに例示化合物E03を用いたことを除いては、実施例8と同様の方法により有機発光素子を作製した。得られた有機発光素子について、実施例8と同様に素子の特性を測定・評価した。その結果、発光輝度1000cd/m2のとき、CIE標準表色でx=0.16,y=0.37の青緑色発光を示し、外部量子収率9.9%という高い発光効率を示した。また本実施例の有機発光素子を、窒素雰囲気下で100時間連続して電圧を印加したところ、良好な発光が継続していることが確認された。
Claims (14)
- 下記一般式(1)で示されることを特徴とする、有機金属錯体。
ただしMがIrの場合、a及びbについて、下記(A1)及び(A2)が満たされる。
(A1)a+b=3
(A2)aは2又は3
またMがPtの場合、a及びbについて、下記(B1)及び(B2)が満たされる。
(B1)a+b=2
(B2)aは1又は2) - 前記MがIrであることを特徴とする、請求項1に記載の有機金属錯体。
- 前記aが3であり、前記bが0であることを特徴とする、請求項2に記載の有機金属錯体。
- 前記aが2であり、前記bが1であることを特徴とする、請求項2に記載の有機金属錯体。
- 前記R1、R2及びR4が水素原子であることを特徴とする、請求項1乃至4のいずれか一項に記載の有機金属錯体。
- 前記R3が水素原子又は炭素数が1乃至4のアルキル基であることを特徴とする、請求項1乃至5のいずれか一項に記載の有機金属錯体。
- 前記R 3 が炭素数が1乃至4のアルキル基であることを特徴とする、請求項3又は4に記載の有機金属錯体。
- 前記R 4 が炭素数が1乃至4のアルキル基であることを特徴とする、請求項3又は4に記載の有機金属錯体。
- 前記R 1 及びR 2 が水素原子であることを特徴とする、請求項7又は8に記載の有機金属錯体。
- 一対の電極と、前記一対の電極の間に配置され少なくとも発光層を有する有機化合物層と、から構成される有機発光素子において、
前記有機化合物層に、請求項1乃至9のいずれか一項に記載の有機金属錯体が含まれることを特徴とする、有機発光素子。 - 前記発光層が、ホストとゲストとを有し、
前記ゲストが、前記有機金属錯体であることを特徴とする、請求項10に記載の有機発光素子。 - 複数の画素を有し、
前記画素が、請求項10又は11に記載の有機発光素子と、前記有機発光素子に接続されたスイッチング素子と、を有することを特徴とする、表示装置。 - 画像を表示するための表示部と、画像情報を入力するための入力部と、を有し、
前記表示部が、複数の画素を有し、
前記画素が、請求項10又は11に記載の有機発光素子と、前記有機発光素子に接続されたスイッチング素子と、を有することを特徴とする、画像入力装置。 - 請求項10又は11に記載の有機発光素子と、前記有機発光素子に接続されたインバータ回路と、を有することを特徴とする、照明装置。
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US10930937B2 (en) * | 2016-11-23 | 2021-02-23 | Lockheed Martin Energy, Llc | Flow batteries incorporating active materials containing doubly bridged aromatic groups |
US10886477B2 (en) * | 2018-03-23 | 2021-01-05 | Feng-wen Yen | Iridium complex and organic electroluminescence device using the same |
JP2022190331A (ja) * | 2021-06-14 | 2022-12-26 | キヤノン株式会社 | 有機化合物及び有機発光素子 |
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