WO2010031485A1 - Materialien für organische elektrolumineszenzvorrichtungen - Google Patents
Materialien für organische elektrolumineszenzvorrichtungen Download PDFInfo
- Publication number
- WO2010031485A1 WO2010031485A1 PCT/EP2009/006149 EP2009006149W WO2010031485A1 WO 2010031485 A1 WO2010031485 A1 WO 2010031485A1 EP 2009006149 W EP2009006149 W EP 2009006149W WO 2010031485 A1 WO2010031485 A1 WO 2010031485A1
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- Prior art keywords
- organic
- formula
- aromatic
- ligands
- ligand
- Prior art date
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- 239000000463 material Substances 0.000 title claims description 44
- 238000005401 electroluminescence Methods 0.000 title description 2
- 239000003446 ligand Substances 0.000 claims abstract description 76
- 230000007935 neutral effect Effects 0.000 claims abstract description 28
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 239000005922 Phosphane Substances 0.000 claims abstract description 9
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000066 arsane Inorganic materials 0.000 claims abstract description 9
- 229910000064 phosphane Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims description 32
- 150000001875 compounds Chemical class 0.000 claims description 22
- 125000003118 aryl group Chemical group 0.000 claims description 16
- 239000011159 matrix material Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 229910052717 sulfur Inorganic materials 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000005693 optoelectronics Effects 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 229910052698 phosphorus Inorganic materials 0.000 claims description 8
- -1 aromatic phosphine oxides Chemical class 0.000 claims description 7
- 229910052731 fluorine Inorganic materials 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 125000004429 atom Chemical group 0.000 claims description 6
- 229910052794 bromium Inorganic materials 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 230000005525 hole transport Effects 0.000 claims description 6
- 229910052740 iodine Inorganic materials 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 229910052785 arsenic Inorganic materials 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 125000002950 monocyclic group Chemical group 0.000 claims description 4
- 125000003367 polycyclic group Chemical group 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 4
- 125000004001 thioalkyl group Chemical group 0.000 claims description 4
- 229910052805 deuterium Inorganic materials 0.000 claims description 3
- 230000005669 field effect Effects 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 238000000859 sublimation Methods 0.000 claims description 3
- 230000008022 sublimation Effects 0.000 claims description 3
- LPHIYKWSEYTCLW-UHFFFAOYSA-N 1h-azaborole Chemical class N1B=CC=C1 LPHIYKWSEYTCLW-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 125000003342 alkenyl group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 125000000304 alkynyl group Chemical group 0.000 claims description 2
- 150000008365 aromatic ketones Chemical class 0.000 claims description 2
- 125000000732 arylene group Chemical group 0.000 claims description 2
- 125000004104 aryloxy group Chemical group 0.000 claims description 2
- 239000012159 carrier gas Substances 0.000 claims description 2
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 125000005553 heteroaryloxy group Chemical group 0.000 claims description 2
- VVVPGLRKXQSQSZ-UHFFFAOYSA-N indolo[3,2-c]carbazole Chemical class C1=CC=CC2=NC3=C4C5=CC=CC=C5N=C4C=CC3=C21 VVVPGLRKXQSQSZ-UHFFFAOYSA-N 0.000 claims description 2
- 125000000061 phosphanyl group Chemical group [H]P([H])* 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 108091008695 photoreceptors Proteins 0.000 claims description 2
- 150000004756 silanes Chemical class 0.000 claims description 2
- 238000005092 sublimation method Methods 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 125000005259 triarylamine group Chemical group 0.000 claims description 2
- 150000003918 triazines Chemical class 0.000 claims description 2
- 238000001947 vapour-phase growth Methods 0.000 claims description 2
- 150000003751 zinc Chemical class 0.000 claims description 2
- AGSGBXQHMGBCBO-UHFFFAOYSA-N 1H-diazasilole Chemical compound N1C=C[SiH]=N1 AGSGBXQHMGBCBO-UHFFFAOYSA-N 0.000 claims 1
- BPMFPOGUJAAYHL-UHFFFAOYSA-N 9H-Pyrido[2,3-b]indole Chemical class C1=CC=C2C3=CC=CC=C3NC2=N1 BPMFPOGUJAAYHL-UHFFFAOYSA-N 0.000 claims 1
- 150000001638 boron Chemical class 0.000 claims 1
- 125000000609 carbazolyl group Chemical class C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 claims 1
- 150000003967 siloles Chemical class 0.000 claims 1
- VMQMZMRVKUZKQL-UHFFFAOYSA-N Cu+ Chemical class [Cu+] VMQMZMRVKUZKQL-UHFFFAOYSA-N 0.000 abstract description 20
- 239000010410 layer Substances 0.000 description 80
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 150000003254 radicals Chemical class 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 238000005481 NMR spectroscopy Methods 0.000 description 8
- 238000005424 photoluminescence Methods 0.000 description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 6
- 238000000103 photoluminescence spectrum Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 238000002061 vacuum sublimation Methods 0.000 description 5
- 238000005160 1H NMR spectroscopy Methods 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005281 excited state Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 150000002902 organometallic compounds Chemical class 0.000 description 4
- 125000002524 organometallic group Chemical group 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 229910052723 transition metal Inorganic materials 0.000 description 4
- 150000003624 transition metals Chemical class 0.000 description 4
- VFUDMQLBKNMONU-UHFFFAOYSA-N 9-[4-(4-carbazol-9-ylphenyl)phenyl]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=C1 VFUDMQLBKNMONU-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 150000001879 copper Chemical class 0.000 description 3
- 150000004699 copper complex Chemical class 0.000 description 3
- RAABOESOVLLHRU-UHFFFAOYSA-N diazene Chemical compound N=N RAABOESOVLLHRU-UHFFFAOYSA-N 0.000 description 3
- 229910000071 diazene Inorganic materials 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 238000007641 inkjet printing Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- STTGYIUESPWXOW-UHFFFAOYSA-N 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline Chemical compound C=12C=CC3=C(C=4C=CC=CC=4)C=C(C)N=C3C2=NC(C)=CC=1C1=CC=CC=C1 STTGYIUESPWXOW-UHFFFAOYSA-N 0.000 description 2
- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 2
- BCJVBDBJSMFBRW-UHFFFAOYSA-N 4-diphenylphosphanylbutyl(diphenyl)phosphane Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)CCCCP(C=1C=CC=CC=1)C1=CC=CC=C1 BCJVBDBJSMFBRW-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 0 C*(NCCCCN)=C Chemical compound C*(NCCCCN)=C 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 150000001716 carbazoles Chemical class 0.000 description 2
- 239000002800 charge carrier Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 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 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000004773 frontier orbital Methods 0.000 description 2
- 238000007429 general method Methods 0.000 description 2
- 230000005283 ground state Effects 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000006862 quantum yield reaction Methods 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 150000005045 1,10-phenanthrolines Chemical class 0.000 description 1
- YMMGRPLNZPTZBS-UHFFFAOYSA-N 2,3-dihydrothieno[2,3-b][1,4]dioxine Chemical compound O1CCOC2=C1C=CS2 YMMGRPLNZPTZBS-UHFFFAOYSA-N 0.000 description 1
- 101100115215 Caenorhabditis elegans cul-2 gene Proteins 0.000 description 1
- 238000004057 DFT-B3LYP calculation Methods 0.000 description 1
- 238000003775 Density Functional Theory Methods 0.000 description 1
- 229920000144 PEDOT:PSS Polymers 0.000 description 1
- 206010034962 Photopsia Diseases 0.000 description 1
- 241001417524 Pomacanthidae Species 0.000 description 1
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 1
- RYXZOQOZERSHHQ-UHFFFAOYSA-N [2-(2-diphenylphosphanylphenoxy)phenyl]-diphenylphosphane Chemical compound C=1C=CC=C(P(C=2C=CC=CC=2)C=2C=CC=CC=2)C=1OC1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RYXZOQOZERSHHQ-UHFFFAOYSA-N 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
- 150000001450 anions Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- IQINTBDBVASLBZ-UHFFFAOYSA-N c(cc1)ccc1N(c(cccc1)c1N1c2ccccc2)[Si+]1(N(c1c2cccc1)c1ccccc1)N2c1ccccc1 Chemical compound c(cc1)ccc1N(c(cccc1)c1N1c2ccccc2)[Si+]1(N(c1c2cccc1)c1ccccc1)N2c1ccccc1 IQINTBDBVASLBZ-UHFFFAOYSA-N 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 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
- 125000005842 heteroatom Chemical group 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 238000004770 highest occupied molecular orbital Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 235000019557 luminance Nutrition 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical compound C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=C(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C3=CC=CC=C3C=CC=2)C=C1 IBHBKWKFFTZAHE-UHFFFAOYSA-N 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910000065 phosphene Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000172 poly(styrenesulfonic acid) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229940005642 polystyrene sulfonic acid Drugs 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003217 pyrazoles Chemical class 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F1/00—Compounds containing elements of Groups 1 or 11 of the Periodic System
- C07F1/08—Copper compounds
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/371—Metal complexes comprising a group IB metal element, e.g. comprising copper, gold or silver
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic System
- C07F5/02—Boron compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/50—Organo-phosphines
- C07F9/5045—Complexes or chelates of phosphines with metallic compounds or metals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B57/00—Other synthetic dyes of known constitution
- C09B57/10—Metal complexes of organic compounds not being dyes in uncomplexed form
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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
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/321—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3]
- H10K85/322—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3] comprising boron
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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
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1044—Heterocyclic compounds characterised by ligands containing two nitrogen atoms as heteroatoms
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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
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1074—Heterocyclic compounds characterised by ligands containing more than three nitrogen atoms as heteroatoms
- C09K2211/1085—Heterocyclic compounds characterised by ligands containing more than three nitrogen atoms as heteroatoms with other heteroatoms
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Definitions
- the invention relates to mononuclear neutral copper (I) complexes of the formula A ([(NnN) CuL 2 ]) and to their use for producing optoelectronic components,
- NnN is a chelating N-heterocyclic ligand which binds to the copper atom via two nitrogen atoms and L is independently a phosphane or arsane ligand. Both ligands L can also be linked together to give a divalent ligand.
- NnN must be simply negative and the two ligands (phosphane or arsane ligands) neutral (preferred embodiment) or b) NnN neutral and the two phosphane / arsane ligands taken together simply be negatively charged so that the mononuclear copper (l ) Complex is electrically neutral.
- Such components consist predominantly of organic layers, as shown schematically and simplified in FIG. At a voltage of z. B. 5 V to 10 V occur from a conductive metal layer, for. B. from a
- Aluminum cathode negative electrons into a thin electron conduction layer and migrate toward the positive anode. This consists z. From a transparent, electrically conductive, thin indium-tin-oxide layer, from the positive charge carriers ("holes"), immigrate into an organic hole line layer.
- the emitter layer which likewise consists of an organic material, there are additionally special emitter molecules, at which or in the vicinity of which the two charge carriers recombine and thereby lead to energetically excited states of the emitter molecules The excited states then give off their energy as light emission and, if appropriate, a separate emitter layer can also be dispensed with if the emitter molecules are located in the hole or electron conduction layer.
- the OLED components can be designed over a large area as lighting fixtures or also extremely small as pixels for displays.
- Decisive for the construction of highly efficient OLEDs are the luminous materials (emitter molecules) used. These can be realized in various ways, using organic or organometallic compounds. It can be shown that the luminous efficacy of OLEDs with organometallic substances, the so-called triplet emitters, can be substantially greater than with purely organic emitter materials. Because of this property, the further development of the organometallic materials is of major importance. The function of OLEDs has already been described very frequently. [i-vi] Using metal-organic complexes with high emission quantum yield, a particularly high efficiency of the device can be achieved. These materials are often called triplet emitters or phosphorescent emitters designated. This finding has been known for some time. [Iv] Many protective rights have already been applied for or granted for triplet emitters. [Vii-xix]
- triplet emitters have great potential for generating light in displays (as pixels) and in illumination surfaces (eg as illuminated wallpaper). Many triplet emitter materials have already been patented and are now being used technologically in the first devices. The previous solutions have disadvantages / problems, namely in the following areas:
- Organometallic triplet emitters have been successfully used as emitter materials in OLEDs.
- very efficient OLEDs with red and green luminescent triplet emitters could be constructed.
- the production of blue-emitting OLEDs still encounters considerable difficulties.
- suitable matrix materials for the emitters, suitable hole and / or electron-conducting matrix materials one of the main difficulties is that the number of known and usable
- Triplet emitter is very limited. Since the energy gap between the lowest triplet state and the ground state is very large for the blue luminescent triplet emitter, the emission is often quenched intramolecularly by thermal occupation of non-emissive, excited states, in particular metal-centered dd * states. In the past - A -
- the blue-emitting triplet emitters used hitherto are disadvantageous in several respects.
- the synthesis of such compounds requires elaborate, multi-step (eg, two or more steps) and time-consuming reactions.
- the syntheses of such organometallic compounds are often carried out at very high temperatures (eg T ⁇ 100 ° C) in organic solvents.
- T ⁇ 100 ° C very high temperatures
- only moderate to poor yields are often achieved.
- rare precious metal salts are used for the synthesis, very high prices (order of magnitude 1000 € / g) of the previously available blue emitting triplet emitters result.
- emission quantum yields are still low in some cases, and there is room for improvement in the long-term chemical stability of the materials.
- organometallic compounds of the platinum group may be the use of organometallic complexes of other, cheaper transition metals, in particular copper.
- Luminescent copper (I) complexes have long been known, for.
- Copper (I) complexes with aromatic diimine ligands eg, 1, 10-phenanthrolines show intense red photoluminescence. [Xx]
- JP 2006/228936 (I. Toshihiro) describes the use of di- and trinuclear Cu, Ag, Hg and Pt complexes with nitrogen-containing heteroaromatic ligands, in particular with substituted pyrazoles.
- WO 2006/032449 A1 (A. Vogler et al.) Has disclosed the use of mononuclear copper (I) complexes having a tridentate trisphosphane and a small anionic ligand (eg, halogen, CN, SCN, etc.). described.
- the present invention relates to mononuclear, neutral copper (I) complexes of the formula A and their use in optoelectronic components.
- NnN is a chelating N-heterocyclic ligand which binds to the copper center via two nitrogen atoms and L is independently a phosphane or arsane ligand, both ligands L also may be linked together to give a divalent ligand, or wherein a ligand L or both ligands L may also be linked to NnN to give a trivalent or tetravalent ligand.
- NnN simply negative and the two ligands L (phosphine and / or Arsanligand) must be neutral (preferred embodiment) or b) NnN neutral and the two ligands L (phosphine and / or Arsanligand) taken together are simply negatively charged such that the copper (I) complex of formula A is electrically neutral overall.
- the neutrality of the copper (I) complexes of the formula I to IX is ensured because Cu (I) is simply positive and one of the ligands is simply negatively charged.
- the mononuclear neutral copper (I) complexes according to the invention accordingly have a single negatively charged ligand and a neutral ligand.
- the energetic distances should be greater than 22,000 cm -1 , preferably greater than 25,000 cm -1 This requirement is met by the complexes of the present invention
- Complexes with a smaller S 0 -T 1 energy gap are also suitable for green or red Emission.
- Z 2 -Z 4 is the same or different N or CR at each occurrence;
- SO 2 , NR 1 , O, S or CONR 1 may be replaced and wherein one or more H atoms may be replaced by D, F, Cl, Br, I, CN or NO 2 , an aromatic or heteroaromatic ring system with 5 bis 60 aromatic ring atoms, each of which may be substituted by one or more radicals R 1 , an aryloxy or
- R 1 is the same or different at each occurrence selected from the group consisting of H, D, F, CN, aliphatic hydrocarbon radical having 1 to 20 carbon atoms, aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms, in which one or more H Atoms can be replaced by D, F, Cl, Br, I or CN, where two or more adjacent substituents R 3 can together form a mono- or polycyclic, aliphatic, aromatic or heteroaromatic ring system;
- Y is the same or different O, S or NR at each occurrence;
- N-B-N ligands
- anionic ligands of the formulas IM to VI may also be a nitrogen ligand of the general form:
- Z 2 - Zg have the same meaning as defined above for Z 2 - Z 4 and wherein R, Y and the symbols, * "and"#”have the same meaning as defined above, and furthermore:
- B is a neutral bridge, in particular, identically or differently on each occurrence, a bivalent bridge selected from NR, BR, O 1
- N-B Nitrogen ligands containing the bridge B "will hereinafter be referred to as N-B" -N, and those which do not contain the bridge as NnN.
- B ' is an alkylene or arylene group or a combination of both, or -O-, -NR- or -SiR 2 -.
- E is phosphorus
- the ligands L or L-B'-L may also be substituted by one or more radicals R, where R has the abovementioned meaning.
- the novelty of the metal complexes of the formula VII and VIII is the neutrality, which is why they can be used advantageously in corresponding applications.
- Nitrogen heterocycles are defined as under A), but the bridge B "is neutral, which produces neutral nitrogen ligands such as:
- the ligands may also be substituted by one or more radicals R.
- L-B L or N'nN '.
- B '" is a simple negatively charged bridge such as R 2 B (CH 2 ) 2 or carborane, so examples of singly negatively charged phosphine ligands can be:
- the ligands may also be substituted by one or more radicals R.
- R radicals
- the above-mentioned neutral and simply negatively charged nitrogen and phosphine ligands are already known from the coordination chemistry of transition metals.
- Some zwitterionic transition metal complexes with boron-containing ligands have been described as potential catalysts. Since the excited states of the N-heteroaromatic
- the N-heterocycles denoted by E and F have the same meaning independently of each other as the heterocycles designated above with A 1 B, C or D.
- B "" independently of one another has the same meaning as the abovementioned bridges B, B ', B “or B'” or may also stand for a single bond.
- the index p independently of one another is 0, 1, 2 or 3, preferably 0, 1 or 2, particularly preferably 0 or 1, where at least one index p which describes a bridge between an N-heterocycle and L, not equal to 0 is.
- p 0 means that no bridge B "" is present.
- the charges of the N-heterocycles designated E and F and the bridges B "" must be chosen to compensate for the charges with the charge of the Cu (I) ion.
- an electronic device is understood to mean a device which contains at least one layer which contains at least one organic compound.
- the component may also contain inorganic materials or else layers which are completely composed of inorganic materials. ,. , are building.
- the electronic device is preferably selected from the group consisting of organic electroluminescent devices (OLEDs), organic integrated circuits (O-ICs), organic field effect
- O-FETs organic thin-film transistors
- O-LETs organic light-emitting transistors
- O-SCs organic solar cells
- O-FQDs organic field quench devices
- LECs organic laser diodes
- OLED sensors in particular non-hermetically shielded gas and vapor sensors, and "organic plasmon emitting devices” (DM Koller et al., Nature Photonics 2008, 1-4), but preferably organic electroluminescent devices (OLEDs).
- OLEDs organic electroluminescent devices
- the organic electroluminescent device includes cathode, anode and at least one emitting layer. In addition to these layers, they may also contain further layers, for example one or more hole injection layers, hole transport layers, hole blocking layers, electron transport layers, electron injection layers, exciton blocking layers and / or charge generation layers (charge generation layers). Likewise, interlayer may be introduced between two emitting layers which, for example, have an exciton-blocking function. It should be noted, however, that not necessarily each of these layers must be present. In this case, the organic electroluminescent device may contain an emitting layer, or it may have a plurality of emitting
- various emitting compounds are used which can fluoresce or phosphoresce. Particular preference is given to three-layer systems, the three layers exhibiting blue, green and orange or red emission (for the basic structure see, for example, WO 05/011013).
- the complexes of the formula A and I to IX according to the invention are used as triplet emitters in an emitter layer of a light-emitting optoelectronic component.
- a suitable combination of the ligands NBN (or NB "-N and NnN) and L or L-B'-L emitter substances can also be obtained for blue emission colors (see below, Examples 1-3), wherein when using other ligands with lower triplet states and light emitting Cu (l) complexes with other emission colors (green, red) can be synthesized (see also Example 4).
- the complexes of the formula A and I to IX can also be used according to the invention as absorber materials in an absorber layer of an optoelectronic component, for example in organic solar cells.
- the proportion of the copper (I) complex at the emitter or absorber layer in such an optoelectronic component is 100% in one embodiment of the invention. In an alternative embodiment, the proportion of the copper (I) complex at the emitter or absorber layer is 1% to 99%.
- the concentration of the copper (I) complex as an emitter in optical light-emitting components, in particular in OLEDs, is between 1% and 10%.
- Suitable matrix materials which may be used in combination with the copper complex are preferably selected from aromatic ketones, aromatic phosphine oxides or aromatic sulfoxides or sulfones, e.g. B. according to WO 04/013080, WO 04/093207, WO 06/005627 or not disclosed application DE 102008033943.1, triarylamines, carbazole derivatives, for. B. CBP (N, N-bis-carbazolylbiphenyl) or in WO 05/039246, US 2005/0069729, JP 2004/288381, EP 1205527 or WO 08/086851 disclosed carbazole derivatives, indolocarbazole derivatives, z. B.
- aromatic ketones aromatic phosphine oxides or aromatic sulfoxides or sulfones
- B. according to WO 04/013080, WO 04/093207, WO 06/005627 or not disclosed application DE 102008033943.1
- the compounds according to the invention in another layer of the organic electroluminescent device, for example in a hole injection or transport layer or in an electron transport layer. Due to the comparatively easy oxidizability of the copper (I) ion, the materials are also suitable in particular as hole injection or hole transport material.
- the present invention also relates to electronic devices, in particular the electronic devices listed above, which have a copper (I) complex described here.
- the electronic component may preferably be formed as an organic light emitting device, an organic diode, an organic solar cell, an organic transistor, an organic light emitting diode, a light emitting electrochemical cell, an organic field effect transistor, and as an organic laser.
- an electronic device in particular an organic electroluminescent device, characterized in that one or more layers are coated with a sublimation process.
- the materials are incorporated into vacuum sublimation systems an initial pressure less than 10 * 5 mbar, preferably less than 10 "6 mbar evaporated. However, it is also possible that the initial pressure is even lower, for example less than 10" 7 mbar.
- an electronic device in particular an organic electroluminescent device, characterized in that one or more layers are coated with the OVPD (Organic Vapor Phase Deposition) method or with the aid of a carrier gas sublimation.
- the materials are applied at a pressure between 10 ⁇ 5 mbar and 1 bar.
- OVJP Organic Vapor Jet Printing
- the materials are applied directly through a nozzle and thus structured (for example, BMS Arnold et al., Appl. Phys. Lett., 2008, 92, 053301).
- an electronic device in particular an organic electroluminescent device, characterized in that one or more layers of solution, such. B. by spin coating, or with any printing process, such. B. screen printing, flexographic printing or offset printing, but particularly preferably LITI (Light Induced Thermal Imaging, thermal transfer printing) or ink-jet printing (ink jet printing) can be produced.
- LITI Light Induced Thermal Imaging, thermal transfer printing
- ink-jet printing ink jet printing
- the application can also be carried out wet-chemically by means of colloidal suspension. If the application takes place wet-chemically by means of colloidal suspension, the particle size is preferably ⁇ 10 nm, more preferably ⁇ 1 nm.
- Figure 1 is a schematic and simplified representation of
- Figure 2 Frontier orbital contours: HOMO (left) and LUMO (right) of [Cu (pz 2 BH 2 ) (pop)] (see Example 1) (The DFT calculations were performed at the B3LYP / LANL2DZ theory level.) As starting geometry served the crystal structure of [Cu (PZ 2 BH 2 ) (POp)]);
- FIG. 3 shows an ORTEP image of a [Cu (H 2 Bpz 2 ) (pop)] molecule
- FIG. 5 shows an ORTEP image of a [Cu (H 2 B (5-Me-pz) 2 ) (pop)] molecule
- Figure 6 is a photoluminescence spectrum of [Cu (H 2 B (5-Me-pz) 2 ) (pop)] as a pure polycrystalline material;
- FIG. 7 shows an ORTEP image of a [Cu (BpZ 4 ) (POp)] molecule
- FIG. 8 shows a photoluminescence spectrum of [Cu (BpZ 4 ) (POp)] as a pure polycrystalline material
- FIG. 9 shows an ORTEP image of a [Cu (H 2 Bpz 2 ) (dppb)] molecule
- Fig. 10 is a photoluminescence spectrum of [Cu (BpZ 4 ) (POp)] as a pure polycrystalline material
- FIG. 11 shows an example of an OLED device with an emitter layer having a copper complex according to the invention, which can be applied wet-chemically (the details of the layer thicknesses are exemplary values);
- FIG. 12 shows an example of an OLED device producible by means of vacuum sublimation technology with complexes according to the invention in the emitter layer;
- FIG. 13 shows an example of a differentiated, highly efficient OLED device having a sublimable inventive device
- Copper complex as emitter material.
- Example 5 OLED Devices
- the copper complexes according to the invention can be used as emitter substances in an OLED device.
- the emitter layer according to the invention optionally a hole blocking layer, an electron conductor layer, a thin LiF or CsF intermediate layer can be used to improve the electron injection and a metal electrode (cathode) achieve good power efficiencies.
- a metal electrode cathode
- These different layers with a total thickness of several 100 nm can be z.
- Glass or any other suitable solid or flexible transparent material may be used as the substrate.
- ITO indium tin oxide
- Emitter layer often abbreviated to EML, with inventive
- Emitter substance This material can, for. B. be dissolved in organic solvents, which dissolution of the underlying PEDOT / PSS layer can be avoided.
- the emitter substance according to the invention is used in a concentration which prevents or severely limits self-quenching processes or triplet-triplet annihilations. It is found that concentrations greater than 2% and less than 12% as well.
- ETL electron transport layer (ETL).
- the vapor-deposited Alq 3 can be used. Thickness is z. B. 40 nm. 6.
- CsF or LiF reduces the electron injection barrier and protects the ETL layer. This layer is usually applied by evaporation.
- the ETL and the CsF layer may possibly be omitted.
- the conductive cathode layer is evaporated.
- AI represents an example.
- the voltage applied to the device is z. B. 3 to 15 V.
- FIGS. 12 and 13 Further embodiments are shown in FIGS. 12 and 13, in which OLED devices with the emitter substances according to the invention are produced by means of vacuum sublimation technology.
- Glass or any other suitable solid or flexible transparent material may be used as the substrate.
- ITO indium tin oxide
- HTL hole transport layer.
- z. B. ⁇ -NPD in a thickness of z. B. 40 nm can be used.
- the construction shown in Fig. 13 may be supplemented by a suitable further layer between the layers 2 and 3 which enhances the hole injection (eg copper phthalocyanine (CuPc 1 eg 10 nm thick)).
- the electron blocking layer should ensure that the electron transport to the anode is prevented, since this current is only ohmic
- the emitter layer contains or consists of the emitter material according to the invention. This can be for the sublimable invention
- the layer thickness can z. B. between 50 nm and 200 nm.
- the common matrix materials such as CBP (4,4'-bis (N-carbazolyl) biphenyl) are suitable.
- materials can be used for UHG matrix materials (see, for example, BME Thompson et al., Chem. Mater., 2004, 16, 4743) or other so-called wide-gap matrix materials.
- This layer can, for. Eg 20
- ETL electron transport layer (ETL).
- the vapor-deposited Alq 3 can be used. Thickness is z. B. 40 nm.
- Electron injection barrier and protects the ETL layer. This layer is usually applied by evaporation.
- the conductive cathode layer is evaporated.
- AI represents an example.
- Mg: Ag (10: 1) or other metals may also be used
- the voltage applied to the device is z. 3V to 15V.
- LEDs are carried out according to the general method outlined below. In individual cases, this is adapted to the respective circumstances (eg layer thickness variation in order to achieve optimum efficiency or color). 5
- Matrix materials or matrix material combinations dissolved in toluene, chlorobenzene or DMF are between 10 and 25 g / L, if, as here, the typical for a device layer thickness of 80 nm is to be achieved by spin coating.
- OLEDs are produced with the following structure:
- PEDOT 20 nm spun from water, PEDOT supplied by BAYER AG; poly- [3,4-ethylenedioxy-2,5-thiophene]
- ITO substrates and the material for the so-called buffer layer are commercially available (ITO from Technoprint and others, PEDOTPPS as aqueous dispersion Clevios Baytron P from H. C. Starck).
- Table 1 shows the efficiency and the voltage at 100 cd / m 2 and the color.
Abstract
Description
Claims
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JP2011527228A JP5666453B2 (ja) | 2008-09-22 | 2009-08-25 | 有機エレクトロルミネッセンス装置のための材料 |
US13/001,719 US8835021B2 (en) | 2008-09-22 | 2009-08-25 | Materials for organic electroluminescence devices |
EP09778094.4A EP2329542B1 (de) | 2008-09-22 | 2009-08-25 | Materialien für organische elektrolumineszenzvorrichtungen |
CN200980124912.7A CN102077382B (zh) | 2008-09-22 | 2009-08-25 | 用于有机电致发光器件的材料 |
KR1020107028364A KR101669293B1 (ko) | 2008-09-22 | 2009-08-25 | 유기 전계발광 디바이스용 재료 |
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JP5666453B2 (ja) | 2015-02-12 |
CN102077382A (zh) | 2011-05-25 |
EP2712001B1 (de) | 2017-02-15 |
JP2015038081A (ja) | 2015-02-26 |
DE102008048336A1 (de) | 2010-03-25 |
EP2712001A1 (de) | 2014-03-26 |
EP2329542B1 (de) | 2014-01-22 |
US20110155954A1 (en) | 2011-06-30 |
EP2712000A1 (de) | 2014-03-26 |
KR101669293B1 (ko) | 2016-10-25 |
KR20110063713A (ko) | 2011-06-14 |
CN102077382B (zh) | 2015-04-08 |
JP2012502937A (ja) | 2012-02-02 |
TW201030012A (en) | 2010-08-16 |
US8835021B2 (en) | 2014-09-16 |
EP2712000B1 (de) | 2017-02-15 |
EP2329542A1 (de) | 2011-06-08 |
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