WO2010136109A1 - Materialien für organische elektrolumineszenzvorrichtungen - Google Patents
Materialien für organische elektrolumineszenzvorrichtungen Download PDFInfo
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- WO2010136109A1 WO2010136109A1 PCT/EP2010/002683 EP2010002683W WO2010136109A1 WO 2010136109 A1 WO2010136109 A1 WO 2010136109A1 EP 2010002683 W EP2010002683 W EP 2010002683W WO 2010136109 A1 WO2010136109 A1 WO 2010136109A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mmol
- formula
- toluene
- dimethyl
- indeno
- Prior art date
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- 239000000463 material Substances 0.000 title claims description 75
- 150000001875 compounds Chemical class 0.000 claims abstract description 179
- 239000011159 matrix material Substances 0.000 claims abstract description 52
- 230000005525 hole transport Effects 0.000 claims abstract description 31
- 239000000203 mixture Substances 0.000 claims description 84
- -1 NR 2 Inorganic materials 0.000 claims description 81
- 125000003118 aryl group Chemical group 0.000 claims description 77
- 125000004432 carbon atom Chemical group C* 0.000 claims description 40
- 150000003254 radicals Chemical class 0.000 claims description 37
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 125000001072 heteroaryl group Chemical group 0.000 claims description 28
- 229910052799 carbon Inorganic materials 0.000 claims description 24
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 claims description 21
- 125000006413 ring segment Chemical group 0.000 claims description 21
- 229910052717 sulfur Inorganic materials 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 17
- 239000000460 chlorine Substances 0.000 claims description 15
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 125000004429 atom Chemical group 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 229910052794 bromium Inorganic materials 0.000 claims description 12
- 229910052801 chlorine Inorganic materials 0.000 claims description 12
- 125000001624 naphthyl group Chemical group 0.000 claims description 11
- 125000001424 substituent group Chemical group 0.000 claims description 10
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- 229910052731 fluorine Inorganic materials 0.000 claims description 8
- 229910052740 iodine Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 125000005309 thioalkoxy group Chemical group 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 150000001412 amines Chemical class 0.000 claims description 6
- 150000001716 carbazoles Chemical class 0.000 claims description 6
- 229910052805 deuterium Inorganic materials 0.000 claims description 6
- 150000004982 aromatic amines Chemical class 0.000 claims description 5
- ZADPBFCGQRWHPN-UHFFFAOYSA-N boronic acid Chemical compound OBO ZADPBFCGQRWHPN-UHFFFAOYSA-N 0.000 claims description 5
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 4
- 125000004104 aryloxy group Chemical group 0.000 claims description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 4
- 125000004475 heteroaralkyl group Chemical group 0.000 claims description 4
- 125000005553 heteroaryloxy group Chemical group 0.000 claims description 4
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims description 4
- 125000002950 monocyclic group Chemical group 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 125000004076 pyridyl group Chemical group 0.000 claims description 4
- 125000000714 pyrimidinyl group Chemical group 0.000 claims description 4
- 238000006467 substitution reaction Methods 0.000 claims description 4
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 4
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 claims description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- 125000000304 alkynyl group Chemical group 0.000 claims description 3
- 125000004306 triazinyl group Chemical group 0.000 claims description 3
- 238000007363 ring formation reaction Methods 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- WUNJCKOTXFSWBK-UHFFFAOYSA-N indeno[2,1-a]carbazole Chemical class C1=CC=C2C=C3C4=NC5=CC=CC=C5C4=CC=C3C2=C1 WUNJCKOTXFSWBK-UHFFFAOYSA-N 0.000 abstract description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 599
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 285
- 239000010410 layer Substances 0.000 description 126
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 120
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 113
- 239000000243 solution Substances 0.000 description 113
- 239000011541 reaction mixture Substances 0.000 description 106
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 96
- 239000012074 organic phase Substances 0.000 description 80
- 239000011734 sodium Substances 0.000 description 79
- 239000007787 solid Substances 0.000 description 62
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 51
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 48
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 47
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 43
- 239000000047 product Substances 0.000 description 43
- BWHDROKFUHTORW-UHFFFAOYSA-N tritert-butylphosphane Chemical compound CC(C)(C)P(C(C)(C)C)C(C)(C)C BWHDROKFUHTORW-UHFFFAOYSA-N 0.000 description 42
- 230000006872 improvement Effects 0.000 description 40
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 40
- 238000001816 cooling Methods 0.000 description 39
- 238000010992 reflux Methods 0.000 description 35
- LXNAVEXFUKBNMK-UHFFFAOYSA-N palladium(II) acetate Substances [Pd].CC(O)=O.CC(O)=O LXNAVEXFUKBNMK-UHFFFAOYSA-N 0.000 description 33
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 33
- 239000000725 suspension Substances 0.000 description 33
- 230000001681 protective effect Effects 0.000 description 31
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 27
- 238000002390 rotary evaporation Methods 0.000 description 26
- 239000007789 gas Substances 0.000 description 25
- 239000008346 aqueous phase Substances 0.000 description 23
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 22
- 238000003786 synthesis reaction Methods 0.000 description 22
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 20
- UAVZDBIKIOWDQF-UHFFFAOYSA-N 7,7-dimethyl-5h-indeno[2,1-b]carbazole Chemical compound N1C2=CC=CC=C2C2=C1C=C1C(C)(C)C3=CC=CC=C3C1=C2 UAVZDBIKIOWDQF-UHFFFAOYSA-N 0.000 description 20
- 230000015572 biosynthetic process Effects 0.000 description 20
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 20
- 239000002480 mineral oil Substances 0.000 description 20
- 235000010446 mineral oil Nutrition 0.000 description 20
- 238000009835 boiling Methods 0.000 description 19
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 18
- 239000002019 doping agent Substances 0.000 description 17
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 16
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 16
- 150000001339 alkali metal compounds Chemical class 0.000 description 16
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 16
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 15
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 15
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 14
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 14
- 239000012043 crude product Substances 0.000 description 14
- DDGPPAMADXTGTN-UHFFFAOYSA-N 2-chloro-4,6-diphenyl-1,3,5-triazine Chemical compound N=1C(Cl)=NC(C=2C=CC=CC=2)=NC=1C1=CC=CC=C1 DDGPPAMADXTGTN-UHFFFAOYSA-N 0.000 description 13
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 13
- QARVLSVVCXYDNA-UHFFFAOYSA-N bromobenzene Chemical compound BrC1=CC=CC=C1 QARVLSVVCXYDNA-UHFFFAOYSA-N 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 12
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 12
- 239000011261 inert gas Substances 0.000 description 12
- KZPYGQFFRCFCPP-UHFFFAOYSA-N 1,1'-bis(diphenylphosphino)ferrocene Chemical compound [Fe+2].C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1 KZPYGQFFRCFCPP-UHFFFAOYSA-N 0.000 description 11
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 11
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 11
- 239000004305 biphenyl Substances 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 11
- 125000005842 heteroatom Chemical group 0.000 description 11
- 239000005457 ice water Substances 0.000 description 11
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 10
- 235000010290 biphenyl Nutrition 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 10
- DYHSDKLCOJIUFX-UHFFFAOYSA-N tert-butoxycarbonyl anhydride Chemical compound CC(C)(C)OC(=O)OC(=O)OC(C)(C)C DYHSDKLCOJIUFX-UHFFFAOYSA-N 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 9
- 239000011777 magnesium Substances 0.000 description 9
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 9
- 238000000859 sublimation Methods 0.000 description 9
- 230000008022 sublimation Effects 0.000 description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 8
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 8
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 8
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 8
- 229910052749 magnesium Inorganic materials 0.000 description 8
- IUGYQRQAERSCNH-UHFFFAOYSA-N pivalic acid Chemical compound CC(C)(C)C(O)=O IUGYQRQAERSCNH-UHFFFAOYSA-N 0.000 description 8
- 229910000027 potassium carbonate Inorganic materials 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 7
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 7
- 239000000741 silica gel Substances 0.000 description 7
- 229910002027 silica gel Inorganic materials 0.000 description 7
- 0 C*C(CC=CC)=C(C)C(C(*1)=C(C)C(*)=C(*(C)[C@@]2C(*)=C(C)*)C1=N[C@]2C(*)=*C)=*CCC(*)=C Chemical compound C*C(CC=CC)=C(C)C(C(*1)=C(C)C(*)=C(*(C)[C@@]2C(*)=C(C)*)C1=N[C@]2C(*)=*C)=*CCC(*)=C 0.000 description 6
- 239000007818 Grignard reagent Substances 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 6
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 6
- 150000001340 alkali metals Chemical class 0.000 description 6
- 125000002178 anthracenyl group Chemical group C1(=CC=CC2=CC3=CC=CC=C3C=C12)* 0.000 description 6
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 6
- JCWIWBWXCVGEAN-UHFFFAOYSA-L cyclopentyl(diphenyl)phosphane;dichloropalladium;iron Chemical compound [Fe].Cl[Pd]Cl.[CH]1[CH][CH][CH][C]1P(C=1C=CC=CC=1)C1=CC=CC=C1.[CH]1[CH][CH][CH][C]1P(C=1C=CC=CC=1)C1=CC=CC=C1 JCWIWBWXCVGEAN-UHFFFAOYSA-L 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 150000004795 grignard reagents Chemical class 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 6
- 238000001953 recrystallisation Methods 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 description 6
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 6
- 150000003918 triazines Chemical class 0.000 description 6
- MBHPOBSZPYEADG-UHFFFAOYSA-N 2-bromo-9,9-dimethylfluorene Chemical compound C1=C(Br)C=C2C(C)(C)C3=CC=CC=C3C2=C1 MBHPOBSZPYEADG-UHFFFAOYSA-N 0.000 description 5
- JVVRCYWZTJLJSG-UHFFFAOYSA-N 4-dimethylaminophenol Chemical compound CN(C)C1=CC=C(O)C=C1 JVVRCYWZTJLJSG-UHFFFAOYSA-N 0.000 description 5
- 229960000549 4-dimethylaminophenol Drugs 0.000 description 5
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-dimethylaminopyridine Substances CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 description 5
- 125000001931 aliphatic group Chemical group 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- DMVOXQPQNTYEKQ-UHFFFAOYSA-N biphenyl-4-amine Chemical group C1=CC(N)=CC=C1C1=CC=CC=C1 DMVOXQPQNTYEKQ-UHFFFAOYSA-N 0.000 description 5
- IPWKHHSGDUIRAH-UHFFFAOYSA-N bis(pinacolato)diboron Chemical compound O1C(C)(C)C(C)(C)OB1B1OC(C)(C)C(C)(C)O1 IPWKHHSGDUIRAH-UHFFFAOYSA-N 0.000 description 5
- 239000003446 ligand Substances 0.000 description 5
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- 229910052709 silver Inorganic materials 0.000 description 5
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- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 4
- KMZUUSFWPQLMQE-UHFFFAOYSA-N 1-bromo-9,9-dimethylfluorene Chemical compound C1=CC(Br)=C2C(C)(C)C3=CC=CC=C3C2=C1 KMZUUSFWPQLMQE-UHFFFAOYSA-N 0.000 description 4
- NNVAMBHIPUGHRP-UHFFFAOYSA-N 10,10-dimethyl-10,12-dihydro-3,12-diazaindeno-[2,1-b]fluorene Chemical compound N1C2=CC=NC=C2C2=C1C=C1C(C)(C)C3=CC=CC=C3C1=C2 NNVAMBHIPUGHRP-UHFFFAOYSA-N 0.000 description 4
- PARQPRHOASBGHV-UHFFFAOYSA-N 2-bromo-5-(4,6-diphenyl-1,3,5-triazin-2-yl)-7,7-dimethylindeno[2,1-b]carbazole Chemical compound C1=C2C(C)(C)C3=CC=CC=C3C2=CC(C2=CC(Br)=CC=C22)=C1N2C(N=1)=NC(C=2C=CC=CC=2)=NC=1C1=CC=CC=C1 PARQPRHOASBGHV-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- 102100036305 C-C chemokine receptor type 8 Human genes 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 101000837299 Euglena gracilis Trans-2-enoyl-CoA reductase Proteins 0.000 description 4
- 101000716063 Homo sapiens C-C chemokine receptor type 8 Proteins 0.000 description 4
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 4
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 4
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
- QPJDMGCKMHUXFD-UHFFFAOYSA-N cyanogen chloride Chemical compound ClC#N QPJDMGCKMHUXFD-UHFFFAOYSA-N 0.000 description 4
- 238000004128 high performance liquid chromatography Methods 0.000 description 4
- 229960004592 isopropanol Drugs 0.000 description 4
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 4
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- IEYUFQCGTKMIMX-UHFFFAOYSA-N diethyl 2,5-bis(9-phenylcarbazol-3-yl)benzene-1,4-dicarboxylate Chemical compound CCOC(=O)C=1C=C(C=2C=C3C4=CC=CC=C4N(C=4C=CC=CC=4)C3=CC=2)C(C(=O)OCC)=CC=1C(C=C1C2=CC=CC=C22)=CC=C1N2C1=CC=CC=C1 IEYUFQCGTKMIMX-UHFFFAOYSA-N 0.000 description 1
- WXRSDHICEYICMV-UHFFFAOYSA-N diethyl 2,5-dibromobenzene-1,4-dicarboxylate Chemical compound CCOC(=O)C1=CC(Br)=C(C(=O)OCC)C=C1Br WXRSDHICEYICMV-UHFFFAOYSA-N 0.000 description 1
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- MCRSZLVSRGTMIH-UHFFFAOYSA-N ditert-butyl(chloro)phosphane Chemical compound CC(C)(C)P(Cl)C(C)(C)C MCRSZLVSRGTMIH-UHFFFAOYSA-N 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000001194 electroluminescence spectrum Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- OAMZXMDZZWGPMH-UHFFFAOYSA-N ethyl acetate;toluene Chemical compound CCOC(C)=O.CC1=CC=CC=C1 OAMZXMDZZWGPMH-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
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- 125000005980 hexynyl group Chemical group 0.000 description 1
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- 238000006460 hydrolysis reaction Methods 0.000 description 1
- PJULCNAVAGQLAT-UHFFFAOYSA-N indeno[2,1-a]fluorene Chemical compound C1=CC=C2C=C3C4=CC5=CC=CC=C5C4=CC=C3C2=C1 PJULCNAVAGQLAT-UHFFFAOYSA-N 0.000 description 1
- LYILDIOBEBSXIG-UHFFFAOYSA-N indeno[2,1-b]fluorene Chemical compound C1=C2C=C3C=C4C=C5C=CC=CC5=C4C=C3C2=CC=C1 LYILDIOBEBSXIG-UHFFFAOYSA-N 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- HOBCFUWDNJPFHB-UHFFFAOYSA-N indolizine Chemical compound C1=CC=CN2C=CC=C21 HOBCFUWDNJPFHB-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
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- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
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- IHLVCKWPAMTVTG-UHFFFAOYSA-N lithium;carbanide Chemical compound [Li+].[CH3-] IHLVCKWPAMTVTG-UHFFFAOYSA-N 0.000 description 1
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- DVSDBMFJEQPWNO-UHFFFAOYSA-N methyllithium Chemical compound C[Li] DVSDBMFJEQPWNO-UHFFFAOYSA-N 0.000 description 1
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- IGIGVQPOBYOCNG-UHFFFAOYSA-N n-[4-[4-(7,7-dimethylindeno[2,1-b]carbazol-5-yl)phenyl]phenyl]-4-phenyl-n-(4-phenylphenyl)aniline Chemical compound C1=C2C(C)(C)C3=CC=CC=C3C2=CC(C2=CC=CC=C22)=C1N2C(C=C1)=CC=C1C(C=C1)=CC=C1N(C=1C=CC(=CC=1)C=1C=CC=CC=1)C(C=C1)=CC=C1C1=CC=CC=C1 IGIGVQPOBYOCNG-UHFFFAOYSA-N 0.000 description 1
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- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
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- 125000005244 neohexyl group Chemical group [H]C([H])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])C([H])([H])* 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
- 230000000802 nitrating effect Effects 0.000 description 1
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- 125000004430 oxygen atom Chemical group O* 0.000 description 1
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- SLIUAWYAILUBJU-UHFFFAOYSA-N pentacene Chemical compound C1=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C21 SLIUAWYAILUBJU-UHFFFAOYSA-N 0.000 description 1
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
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- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- CPNGPNLZQNNVQM-UHFFFAOYSA-N pteridine Chemical compound N1=CN=CC2=NC=CN=C21 CPNGPNLZQNNVQM-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- ABMYEXAYWZJVOV-UHFFFAOYSA-N pyridin-3-ylboronic acid Chemical compound OB(O)C1=CC=CN=C1 ABMYEXAYWZJVOV-UHFFFAOYSA-N 0.000 description 1
- GDISDVBCNPLSDU-UHFFFAOYSA-N pyrido[2,3-g]quinoline Chemical compound C1=CC=NC2=CC3=CC=CN=C3C=C21 GDISDVBCNPLSDU-UHFFFAOYSA-N 0.000 description 1
- HZFPPBMKGYINDF-UHFFFAOYSA-N pyrimidin-5-ylboronic acid Chemical compound OB(O)C1=CN=CN=C1 HZFPPBMKGYINDF-UHFFFAOYSA-N 0.000 description 1
- JWVCLYRUEFBMGU-UHFFFAOYSA-N quinazoline Chemical compound N1=CN=CC2=CC=CC=C21 JWVCLYRUEFBMGU-UHFFFAOYSA-N 0.000 description 1
- 230000009103 reabsorption Effects 0.000 description 1
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- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
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- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005092 sublimation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 150000001911 terphenyls Chemical class 0.000 description 1
- JBMDFPSEQHQANT-UHFFFAOYSA-N tert-butyl 2-[4-(n-(9,9-dimethylfluoren-2-yl)-4-phenylanilino)phenyl]-7,7-dimethylindeno[2,1-b]carbazole-5-carboxylate Chemical compound C1=C2C3=CC=4C5=CC=CC=C5C(C)(C)C=4C=C3N(C(=O)OC(C)(C)C)C2=CC=C1C(C=C1)=CC=C1N(C=1C=C2C(C)(C)C3=CC=CC=C3C2=CC=1)C(C=C1)=CC=C1C1=CC=CC=C1 JBMDFPSEQHQANT-UHFFFAOYSA-N 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- 150000003536 tetrazoles Chemical class 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 229910000404 tripotassium phosphate Inorganic materials 0.000 description 1
- 235000019798 tripotassium phosphate Nutrition 0.000 description 1
- COIOYMYWGDAQPM-UHFFFAOYSA-N tris(2-methylphenyl)phosphane Chemical compound CC1=CC=CC=C1P(C=1C(=CC=CC=1)C)C1=CC=CC=C1C COIOYMYWGDAQPM-UHFFFAOYSA-N 0.000 description 1
- YGPLLMPPZRUGTJ-UHFFFAOYSA-N truxene Chemical compound C1C2=CC=CC=C2C(C2=C3C4=CC=CC=C4C2)=C1C1=C3CC2=CC=CC=C21 YGPLLMPPZRUGTJ-UHFFFAOYSA-N 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
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000002061 vacuum sublimation Methods 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 150000003751 zinc Chemical class 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
Classifications
-
- 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
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
- H10K85/633—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/58—[b]- or [c]-condensed
- C07D209/70—[b]- or [c]-condensed containing carbocyclic rings other than six-membered
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/82—Carbazoles; Hydrogenated carbazoles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/50—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
- C07D333/52—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/10—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing aromatic rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing three or more hetero rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D407/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00
- C07D407/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings
- C07D407/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings linked by a carbon chain containing aromatic rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
- C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
- C07D409/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
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Definitions
- the present invention describes indenocarbazole derivatives having electron and hole transporting properties, in particular for use in the emission and / or charge transport layer of
- Electroluminescent devices or as a matrix material The invention further relates to a process for the preparation of the compounds according to the invention and to electronic devices containing them.
- the operating voltage of both fluorescent and phosphorescent OLEDs 1 should be reduced, resulting in an improvement in power efficiency. This is especially important for mobile applications.
- the voltage is dependent on the layer thickness of the hole transport layer.
- a thicker layer thickness of the hole transport layer would often be desirable in order to reduce the optical outcoupling and the
- carbazole derivatives e.g. B. bis (carbazolyl) biphenyl, as matrix materials for phosphorescent
- ketones WO 2004/093207
- phosphine oxides and sulfones WO 2005/003253
- phosphorescent emitters Especially with ketones low operating voltages and long lifetimes are achieved. Nevertheless, there is still room for improvement, especially in terms of efficiency and compatibility with metal complexes containing ketoketonate ligands, for example, acetylacetonate.
- metal complexes for example BAIq 3 or bis [2- (2-benzothiazole) phenolate] zinc (II), are used as matrix materials for phosphorescent emitters. There is still room for improvement here, especially with regard to the operating voltage and the chemical stability. Pure organic compounds are often more stable than these metal complexes. Thus, some of these metal complexes are sensitive to hydrolysis, which makes it difficult to handle the complexes.
- AIQ 3 Electroluminescent devices that use AIQ 3 as electron conductor, s jnd have long known and described were already 1993 in US 4,539,507.
- AIQ 3 has since been widely used as an electron transport material, but has several disadvantages: It can not be evaporated without leaving any residue, as it partially decomposes at the sublimation temperature, which is a major problem especially for production plants. This has the consequence that the Aufdampfarion must always be cleaned or changed. Furthermore, decomposition products of AIQ 3 enter the OLED, where they contribute to a reduced lifetime and reduced quantum and power efficiency. AIQ 3 also has low electron mobility, resulting in high voltages and thus lower power efficiency.
- AIQ 3 To avoid short circuits in the display, one would like to increase the layer thickness; this is not possible with AIQ 3 because of the low charge carrier mobility and the resulting increase in voltage.
- the charge carrier mobility of other electron conductors (US Pat. No. 4,539,507) is also too low to build up thicker layers therewith Life of the OLED is even worse than when using AIQ 3 .
- the inherent color (yellow in the solid) of AIQ 3 also proves unfavorable, which can lead to color shifts, especially with blue OLEDs, due to reabsorption and weak reemission.
- blue OLEDs can only be represented with high efficiency or color loss.
- Indenofluoreneamines are considered as having good hole mobility
- EP 1860097, WO 2006/100896, DE 102006025846, WO 2006/122630 and WO 2008/006449 disclose indenofluorene diamines for use in electronic devices. It cites good lifetimes when used as a hole transport material, but there is still a need to lower the operating voltage to achieve better power efficiencies, especially with blue emission.
- the object of the present invention is thus to provide such compounds.
- electroluminescent devices containing indenocarbazole derivatives and related compounds according to the following formula (1) have significant improvements over the prior art, especially when used as matrix materials for phosphorescent dopants, but also, depending on the substitution, when used as electron transport or hole transport compounds.
- the invention provides a compound of general formula (1) or formula (1 '),
- Y is C when the group Y is bound to a group X 2 , or is the same or different CR or N at each occurrence when no group X 2 is bound to the group Y;
- E is the same or different covalent at each occurrence
- X 2 is the same or different at each occurrence as a bivalent
- L is a bivalent aromatic or heteroaromatic ring system having 5 to 40 aromatic ring atoms, which may be substituted by one or more radicals R 1 ;
- Ar is the same or different at each occurrence an aromatic or heteroaromatic ring system, preferably an aryl or heteroaryl group having 5 to 40 ring atoms, which may be substituted by one or more radicals R 1 ;
- q 1, 2, 3, 4, 5 or 6;
- F, Cl, Br, I 1 CN or NO 2 may be replaced, or an aryl or heteroaryl group having 5 to 40 ring atoms, each of which may be substituted by one or more radicals R 2 , or an aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms, each by one or more radicals
- R 2 may be substituted, or an aryloxy or heteroaryloxy group having 5 to 40 aromatic ring atoms, which may be substituted by one or more radicals R 2 , or an aralkyl or heteroaralkyl group having 5 to 40 aromatic ring atoms, by one or a plurality of radicals R 2 may be substituted, or one
- R 1 is identical or different at each occurrence H 1 D, F, Cl, Br, I, CN, NO 2 , CF 3 , B (OR 2 ) 2 , Si (R 2 ) 3 , a straight-chain alkyl, alkoxy or thioalkoxy group having 1 to 40 carbon atoms or a branched or cyclic alkyl, alkoxy or thioalkoxy group having 3 to 40 carbon atoms or an alkenyl or alkynyl group having 2 to 40 carbon atoms
- R 2 is the same or different H, D or an aliphatic hydrocarbon radical having 1 to 20 C atoms or an aryl or heteroaryl group having 5 to 40 ring atoms or a combination of these groups at each occurrence;
- Ph phenyl
- an alkynyl group is understood as meaning, in particular, ethynyl, propynyl, butynyl, pentynyl, hexynyl or octynyl.
- a C 1 to C 40 alkoxy group is preferably understood as meaning methoxy, trifluoromethoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, s-butoxy, t-butoxy or 2-methylbutoxy.
- An aryl group in the sense of this invention contains 6 to 40 C atoms, preferably 6 to 25 C atoms, more preferably 6 to 20 C atoms; a
- Heteroaryl group in the context of this invention contains 1 to 39 carbon atoms and at least one heteroatom, preferably 2 to 25 carbon atoms and at least one heteroatom, more preferably 2 to 20 carbon atoms and at least one heteroatom, with the proviso that the sum of C atoms and heteroatoms at least 5 yields.
- the heteroatoms are preferably selected from N, O and / or S.
- an aryl group or heteroaryl group is either a simple aromatic cycle, ie benzene, or a simple heteroaromatic cycle, for example pyridine, pyrimidine, triazine, thiophene, or a polycyclic fused aryl or heteroaryl group, for example, naphthalene, anthracene, phenanthrene, Benzanthracene, quinoline, isoquinoline, benzothiophene, benzofuran and indole, etc., understood.
- An aromatic ring system in the sense of this invention contains 6 to 60 C atoms, preferably 6 to 40 C atoms, more preferably 6 to 24 C atoms in the ring system.
- a heteroaromatic ring system in the sense of this invention contains 1 to 79 C atoms and at least one heteroatom in the ring system, more preferably 2 to 40 C atoms and at least one heteroatom, most preferably 2 to 24 C atoms and at least one heteroatom, with Given that the sum of C atoms and Heteroatoms at least 5 results.
- the heteroatoms are preferably selected from N, O and / or S.
- An aromatic or heteroaromatic ring system in the sense of this invention is furthermore to be understood as meaning a system which does not necessarily contain only aryl or heteroaryl groups but in which also several aryl or heteroaryl groups Heteroaryl groups by a non-aromatic unit (preferably less than 10% of the atoms other than H), such as.
- a C, N or O atom can be connected.
- systems such as 9,9'-spirobifluorene, 9,9-diarylfluorene, triarylamine, diaryl ethers, stilbene, etc.
- aromatic ring systems in the context of this invention, as well as systems in which two or more aryl groups, for example by a linear or cyclic alkyl group or linked by a silyl group and also biaryl or oligoaryl groups.
- An aromatic or heteroaromatic ring system having 5-60 ring atoms, which may be substituted in each case by the abovementioned radicals R and which may be linked via any position on the aromatic or heteroaromatic compounds, is understood in particular to mean groups derived from benzene, naphthalene , Anthracene, phenanthrene, pyrene, chrysene, benzanthracene, perylene, fluoranthene, naphthacene, pentacene, benzpyrene, biphenyl, biphenylene, terphenyl, terphenyls, fluorene, spirobifluorene, dihydrophenanthrene, dihydropyrene, tetra-hydropyrene, cis or trans indenofluorene, truxene, isotruxene , Spirotruxene, spiroisotruxene, furan, benzofuran,
- Xi in the compound of the general formula (1) is preferably selected from N (R 1 ), wherein R 1 is selected from an aryl or heteroaryl group having 5 to 40 ring atoms, each substituted by one or more R 2 substituents may be, or an aromatic or heteroaromatic ring system having 5 to 60 ring atoms, each of which may be substituted by one or more radicals R 2 .
- ⁇ 2 is independently selected from C (R 1 ) 2 , N (R 1 ) or S independently of each other independently of each other.
- X 1 in the compound of general formula (1) is N (R 1 ), wherein R 1 is selected from an aryl or heteroaryl group having 5 to 40 ring atoms, each represented by one or more radicals R 2 may be substituted, or an aromatic or heteroaromatic ring system having 5 to 60 ring atoms, each of which may be substituted by one or more radicals R 2 , and X 2 is C (R 1 ) 2 .
- X 3 in the compound of the general formula (1a) in each occurrence independently of one another is preferably selected from N or C (R 1 ), more preferably N.
- E is independently selected independently of each occurrence from a single covalent bond or a divalent bridge selected from N (R 1 ), C (R 1 ) 2 and O. E is more preferably selected from a single covalent bond, N (R 1 ) or C (R 1 ) 2 . Most preferably, E is a single covalent bond.
- L is preferably an aromatic or heteroaromatic ring system having 5 to 24 aromatic ring atoms, which may be substituted by one or more radicals R 1 . As mentioned above in the definition, L need not necessarily contain only aromatic groups.
- a group L is also preferred which has the formula aryl-C (OO) -aryl, where aryl, identically or differently on each occurrence, stands for an aryl, biaryl, heteroaryl or biheteroaryl group having 5 to 12 aromatic ring atoms , preferred for a phenyl or biphenyl group.
- Further preferred groups L are groups which represent a combination of phenyl groups and triazine groups, for example phenyl-triazine-phenyl, where these groups may also be substituted by one or more radicals R 1 .
- R is preferably selected from H, D, N (Ar> 2 , preferably diphenylamino, a substituted or unsubstituted arylamine, a straight-chain alkyl group having 1 to 20 C atoms, preferably 1 to 10 C-atoms. Atoms, a branched alkyl group having 3 to 20 C atoms, preferably 1 to 10 C atoms, or an aromatic or heteroaromatic ring system having 5 to 40 ring atoms, where the aromatic or heteroaromatic ring system is preferably selected from substituted or unsubstituted phenyl,
- Ar represents an aryl or heteroaryl group having 5 to 40 ring atoms, preferably substituted or unsubstituted phenyl, naphthyl, triazinyl, pyridyl, pyrimidyl or carbazole, more preferably phenyl.
- a preferred compound according to the invention is represented by the following formula (2) or formula (2 ')
- the compound of formula (1) is selected from the following general structures:
- R 1 is preferably independently selected from alkyl, substituted or unsubstituted triazine, pyridine, pyrimidine, pyrazine, phenyl, biphenyl, terphenyl, naphthyl, anthracenyl and carbazole.
- aryl is an aryl or heteroaryl group having 5 to 10 aromatic ring atoms, preferably phenyl.
- two radicals R 1 which are bonded to the same carbon atom, together with the atom to which they are attached, form an aliphatic, aromatic or heteroaromatic ring system, for example a fluorene.
- radicals R preferably none of the radicals R contains a carbazole group or a dibenzothiophene group.
- X 2 is C (R 1 ) 2 .
- R 1 is preferably independently selected from alkyl, substituted or unsubstituted each occurrence Triazine, pyridine, pyrimidine, pyrazine, phenyl, biphenyl, terphenyl, naphthyl, anthracenyl and carbazole.
- two radicals R 1 which are bonded to the same carbon atom, together with the atom to which they are attached, form an aliphatic, aromatic or heteroaromatic ring system, for example a fluorene.
- At least one group Y stands for N and the remaining groups Y for CR. Otherwise, the symbols and indices used have the meanings given above. Particularly preferred compounds are also the structures of the formulas (5a) to (5d) and (6a) to (6d) shown below,
- At least one Y represents a nitrogen atom and wherein X 2 is preferably selected from C (R 1 ) 2, N (R 1 ) and S.
- R 1 preferably each independently selected from alkyl, substituted or unsubstituted triazine, pyridine, pyrimidine, pyrazine, phenyl, biphenyl, terphenyl, naphthyl, anthracenyl and carbazole. It is also possible for two radicals R 1 , which are bonded to the same carbon atom, to form an aliphatic, aromatic or heteroaromatic ring system, for example a fluorene.
- R 1 is preferably independently selected from alkyl, substituted or unsubstituted triazine, pyridine, pyrimidine, pyrazine, phenyl, biphenyl, terphenyl, naphthyl, anthracenyl and carbazole.
- two radicals R 1 which are bonded to the same carbon atom, together with the atom to which they are attached, form an aliphatic, aromatic or heteroaromatic ring system, for example a fluorene.
- Corresponding embodiments of the formula (V) can be constructed quite analogously and are likewise preferred.
- X 2 is particularly preferably C (R 1 ) 2 - R 1 is preferably independently selected from alkyl, substituted or unsubstituted triazine, pyridine, pyrimidine, pyrazine, phenyl, biphenyl, terphenyl, naphthyl, anthracenyl and carbazole.
- R 1 two radicals R 1 , which are bonded to the same carbon atom, together with the atom to which they are attached, form an aliphatic, aromatic or heteroaromatic ring system, for example a fluorene.
- the compound of the invention corresponds to the general formula (7),
- each occurrence of X 1 in the compound of general formula (7) is preferably selected from N (R 1 ) or C (R 1 ) 2) wherein R 1 is selected from an aryl substituted or unsubstituted with R 2 or heteroaryl group having 5 to 40 ring atoms or an aromatic or heteroaromatic ring system having 5 to 40 ring atoms, which may be substituted by one or more radicals R 2 .
- X 2 is independently selected from C (R 1 ) 2 , N (R 1 ) or S independently of each other independently of each other.
- Xi is particularly preferably N (R 1 ) and X 2 is C (R 1 ) 2 or X 1 is C (R 1 ) 2 and X 2 is N (R 1 ).
- R is preferably selected from H 1 D, NAr 2 , a substituted or unsubstituted arylamine, a straight-chain alkyl group having 1 to 20 C atoms, preferably 1 to 10 C atoms, a branched alkyl group 3 to 20 C atoms, preferably 3 to 10 C atoms, or an aromatic or heteroaromatic ring system having 5 to 40 ring atoms, which may be substituted by one or more radicals R 1 .
- the aromatic or heteroaromatic ring system is preferably selected from phenyl, biphenyl, terphenyl, naphthyl, pyridine, triazine, pyrimidine, pyrazine, thiophene or triphenylamine, which in each case may be substituted by one or more radicals R 1 .
- Ar is an aryl or heteroaryl group, preferably phenyl, naphthyl, biphenyl, terphenyl, pyridinyl, triazinyl, pyrimidinyl, pyrazinyl, thiophenyl or substituted or unsubstituted carbazole, each having a or a plurality of R may be substituted.
- Preferred structures within the compound of the formula (7) are the structures (7a) to (7d),
- X 1 and X 1 each independently of one another are C (R 1 ) 2 or N (R 1 ), Ea and Eb independently of one another each independently represent a single covalent bond, C ( R 1 ) are 2 , N (R 1 ) or O and X 2 a and X 2 b are each independently selected from C (R 1 ) 2 , N (R 1 ) or S, more preferably C (R 1 ) 2 and N (R 1 ).
- the compound according to the invention corresponds to the general formula (8),
- X 1 is N (R 1 ).
- E is a single bond, N (R 1 ) or C (R 1 ) 2, particularly preferably a single bond. Most preferably, X 1 is N (R 1 ) 2 and E is a single bond.
- Preferred embodiments of the formula (8) are the compounds of the following formula (8a)
- Examples of compounds of the formula (1) according to the invention are, for example, the structures shown below.
- the compounds of the invention can according to the expert known synthesis steps, such as. Bromination, Suzuki coupling, Hartwig-Buchwald coupling, etc., are presented.
- the synthesis of a compound of the formula (1) having a nitrogen atom as a bridging atom is generally shown in the following Schemes 1 to 6.
- the example compounds according to the invention can also be synthesized with variation of the substituents.
- substituents for example, phenyl, biphenyl, terphenyl, naphthyl, pyridinyl, pyrimidinyl, anthracenyl, and the like can be used instead of the triazine substituent as the substituent on the nitrogen.
- Another object of the invention is a process for the preparation of a compound of general formula (1)
- R 3 is a reactive leaving group, preferably selected from bromine, iodine, chlorine, boronic acid, boronic acid ester, tosylate or triflate,
- R 4 is a reactive leaving group, preferably selected from bromine, iodine, chlorine, boronic acid, boronic acid ester, tosylate or triflate, or a functional reactive group, for example an amine, R 5 and R 6 each independently form a
- Bridge X 2 are suitable, n and m are each independently 0 or 1, where n + m is greater than or equal to 1,
- the compound according to formula (1) can be used in electronic devices, in particular in organic electroluminescent devices.
- the exact use of the compounds depends on the exact structure and the substituents.
- Another object of the present invention is therefore the use of a compound according to formula (1) in an electronic device.
- the compound of the formula (1) is employed in an emitting layer, preferably in admixture with at least one further compound. It is preferred if the compound according to formula (1) in the mixture is the matrix material.
- the compounds of the formula (1) are therefore used as matrix material (host material) for dopants, preferably phosphorescent dopants. It is particularly preferred here that the compounds of the formula (1) are used as matrix material for dopants in an organic electroluminescent device.
- An organic electroluminescent device is a device that includes anode, cathode and at least one emissive layer disposed between the anode and the cathode.
- one or more electron transport layers and one or more hole transport layers may be included.
- An organic electroluminescent device according to the invention contains at least one layer between the anode and the cathode which comprises a compound of the formula (1), for example as matrix material, hole transport material or electron transport material.
- the matrix material contains an emitting compound.
- the layer is an emitting layer containing at least one emitter, preferably a phosphorescent emitter, and at least one compound of the above-mentioned formula (1).
- the organic electroluminescent device may also contain a plurality of emitting layers, wherein at least one emitting layer contains at least one compound according to formula (1) and at least one emitter, preferably a phosphorescent emitter.
- the invention therefore also provides mixtures of one or more compounds of the formula (1) as matrix material with one or more dopants, in particular emitting compounds.
- the mixture of the compound according to formula (1) as matrix material and the emitter used in the emitting layer preferably contains between 99 and 50% by volume, preferably between 98 and so% by volume, particularly preferably between 97 and 60 vol .-%, in particular between 95 and 85 vol .-% of the compound according to formula (1) based on the total mixture of emitter and matrix material. Accordingly, the mixture contains between 1 and 50% by volume, preferably between 2 and 50% by volume, more preferably between 3 and 40% by volume, in particular between 5 and 15% by volume of the emitter relative to the Total mixture of emitter and matrix material.
- a matrix material is selected from compounds of the formula (1).
- suitable matrix materials which can be used in combination with compounds of the formula (1) are, for example, ketones, phosphine oxides, sulfoxides and sulfones, eg. B. according to WO 2004/013080, WO 2004/093207, WO 2006/005627 or not disclosed application DE 102008033943.1, triarylamines, z. JsiPB, carbazole derivatives, e.g. B.
- CBP N, N-Biscarbazolylbiphenyl
- CBP indolocarbazole derivatives
- indolocarbazole derivatives for. B. according to WO 2007/063754 or WO 2008/056746
- Azacarbazole z. B. according to EP 1617710, EP 1617711, EP 1731584, JP 2005/347160
- bipolar matrix materials for. B. according to WO 2007/137725, silanes, z. B. according to WO 2005/111172, azaborole or boronic esters, z. B. according to
- WO 2006/117052 triazine derivatives, for. B. according to WO 2007/063754, WO 2008/056746 or WO 2010/015306, or zinc complexes, for. B. according to EP 652273 or WO 2009/062578.
- the compound according to the invention is used together with two phosphorescent emitters.
- the shorter-wavelength emitting emitter serves as a co-matrix for the longer-wavelength emitting emitter.
- the compound according to the invention can be used together with a green-phosphorescent and a red-phosphorescent emitter.
- phosphorescence is understood as meaning the luminescence from an excited state with a higher spin multiplicity, ie a spin state> 1, in particular from an excited triplet state.
- all luminescent transition metal complexes and luminescent lanthanide complexes are to be regarded as phosphorescent compounds.
- Suitable phosphorescent compounds are, in particular, compounds which emit light, preferably in the visible range, with suitable excitation and also contain at least one atom of atomic number greater than 20, preferably greater than 38 and less than 84, particularly preferably greater than 56 and less than 80, in particular a metal with this atomic number.
- Preferred phosphorescence emitters used are compounds containing copper, molybdenum, tungsten, rhenium, ruthenium, osmium, rhodium, iridium, palladium, platinum, silver, gold or europium, in particular compounds containing iridium, platinum or copper.
- the compounds according to formula (1) are used as electron transport material.
- Particularly preferred compounds in this case are compounds of the formula (1) which have an electron-deficient heteroaromatic group, for example triazine or pyrimidine.
- Low-electron heteroaromatic groups are, for example, 5-membered heteroaromatics containing at least 2 heteroatoms or 6-membered heteroaromatics.
- the compounds of the formula (1) are used as the electron transport material in an organic electroluminescent device, they can also be used according to the invention in combination with an organic alkali metal compound.
- “in combination with an organic alkali metal compound” means that the compounds of formula (1) and the alkali metal compound are present either as a mixture in one layer or separately in two successive layers.
- the compounds of the formula (1) and the organic alkali metal compound are present as a mixture in one layer.
- An organic alkali metal compound in the context of this invention is to be understood as meaning a compound which contains at least one alkali metal, ie lithium, sodium, potassium, rubidium or cesium, and which also contains at least one organic ligand.
- Suitable organic alkali metal compounds are, for example, those in
- WO 2007/050301, WO 2007/050334 and EP 1144543 disclosed compounds. These are via quote part of the present application.
- Preferred organic alkali metal compounds are the compounds of the following formula A,
- Line represents two or three atoms and bonds which are required to complement with M a 5- or 6-membered ring, these
- Atoms may also be substituted by one or more radicals R 1 , and M is an alkali metal selected from lithium, sodium, potassium, rubidium or cesium.
- Preferred compounds of the formula A are the compounds of the following formulas B and C,
- organic alkali metal compounds are the compounds according to the following formula D,
- the alkali metal is selected from lithium, sodium and potassium, more preferably lithium and sodium, most preferably lithium.
- Examples of suitable organic alkali metal compounds are the structures listed in the following table.
- the ratio of the compound of the formula (1) to the organic alkali metal compound is preferably 20:80 to 80:20, more preferably 30:70 to 70:30, all more preferably 30:70 to 50:50, especially 30:70 to 45:55.
- Electron transport layer preferably between 3 and 150 nm, particularly preferably between 5 and 100 nm, very particularly preferably between 10 and 60 nm, in particular between 15 and 40 nm.
- the layer thickness of the layer containing the compound of the formula (1) is preferably from 3 to 150 nm, more preferably from 5 to 100 nm, most preferably between 10 and 60 nm, in particular between 15 and 40 nm.
- the layer thickness of the layer containing the organic alkali metal compound and which is arranged between the layer with the compound of formula (1) and the cathode is preferably between 0.5 and 20 nm, particularly preferably between 1 and 10 nm, very particularly preferably between 1 and 5 nm, in particular between 1, 5 and 3 nm.
- the compound according to formula (1) be used as a hole transport material and / or as a hole injection material. This is especially true when at least one R is a substituted or unsubstituted arylamine and / or when X 1 and / or X 2 is N (R 1 ).
- the compounds are then preferably used in a hole transport layer and / or in a hole injection layer.
- a hole injection layer in the sense of this invention is a layer which is directly adjacent to the anode.
- a hole transport layer in the sense of this invention is a layer that lies between the hole injection layer and the emission layer. If the connection is in accordance with
- Formula (1) is used as Lochtransport- or hole injection material, it may be preferred if it is doped with electron acceptor compounds, for example, with F 4 -TCNQ (tetrafluorotetra cyano-quinodimethane) or with compounds, as described in EP 1476881 or EP 1596445.
- electron acceptor compounds for example, with F 4 -TCNQ (tetrafluorotetra cyano-quinodimethane) or with compounds, as described in EP 1476881 or EP 1596445.
- the compound according to formula (1) is used as hole transport material in a hole transport layer, a proportion of 100% may also be preferred, ie the use of this compound as a pure material.
- Particular preference is also given to using the compound of the formula (1) in a hole transport or injection layer in combination with a layer which comprises a hexaazatriphenylene derivative, in particular hexacyanohexaazatriphenylene (for example according to EP 1175470).
- Hole transport layer containing one or more compounds according to formula (1).
- this structure it is possible in this structure to use a plurality of successive hole transport layers, wherein at least one hole transport layer contains at least one compound according to formula (1).
- a further preferred combination is as follows: anode-hole transport layer-hexaazatriphenylene derivative-hole transport layer, wherein at least one of the two hole transport layers contains one or more compounds according to formula (1).
- a plurality of successive hole transport layers are used, wherein at least one hole transport layer contains at least one compound according to formula (1).
- Another object of the invention is an electronic device containing at least one compound of formula (1), as defined above.
- the electronic device is preferably selected from the group consisting of organic electroluminescent devices (OLEDs), organic field-effect transistors (O-FETs), organic thin-film transistors (O-TFTs), organic light-emitting transistors
- OLEDs organic electroluminescent devices
- O-FETs organic field-effect transistors
- O-TFTs organic thin-film transistors
- OLEDs organic light-emitting transistors
- O-LETs organic integrated circuits
- O-ICs organic solar cells
- O-SCs organic field quench devices
- LECs light-emitting electrochemical cells
- O-SCs organic laser diodes
- Laser optically pumped lasers.
- the compound of the invention according to formula (1) be used as hole transport material in a hole transport layer and / or in a hole injection layer and that the compounds according to formula (1) may optionally be doped in these layers by electron acceptor compounds.
- the preferences listed above also apply.
- Formula (1) can be used as an electron transport material in an electron transport layer and / or as a hole blocking material in a hole blocking layer and / or as a matrix material, in particular as a triplet matrix material in an emitting layer.
- the preferences listed above also apply.
- Yet another object of the invention are organic electronic devices containing at least one compound according to formula (1) as defined above, in particular organic electroluminescent devices containing anode, cathode and at least one emitting layer, characterized in that at least one organic layer containing a emitting layer or another layer, at least one compound according to formula (1) as defniert above contains.
- organic electroluminescent devices characterized in that a plurality of emitting compounds are used in the same layer or in different layers. Particularly preferably, these compounds have a total of several emission maxima between 380 nm and 750 nm, so that a total of white emission results, ie in addition to the compound of formula (1) at least one further emitting compound is used, which can fluoresce or phosphoresce and the yellow, emitted orange or red light. Particularly preferred are three-layer systems, of which at least one of these layers contains a compound according to formula (1) and wherein the layers show blue, green and orange or red emission (for the basic structure see, for example, WO 05/011013). Similarly, broadband emitters can be used for white emitting OLEDs.
- low work function metals, metal alloys or multilayer structures of various metals are preferable, such as alkaline earth metals, alkali metals, main group metals or lanthanides (eg, Ca, Ba, Mg, Al, In, Mg, Yb, Sm, etc.).
- alkaline earth metals alkali metals
- main group metals or lanthanides eg, Ca, Ba, Mg, Al, In, Mg, Yb, Sm, etc.
- further metals which have a relatively high work function such as, for example, B. Ag, which then usually combinations of metals, such as Mg / Ag, Ca / Ag or Ba / Ag are used.
- metal alloys in particular alloys of an alkali metal or alkaline earth metal and silver, particularly preferably an alloy of Mg and Ag.
- a metallic cathode and the organic semiconductor may also be preferred to introduce between a metallic cathode and the organic semiconductor a thin intermediate layer of a material with a high dielectric constant.
- Suitable examples of these are alkali metal or alkaline earth metal fluorides, but also the corresponding oxides or carbonates (eg LiF, Li 2 O, CsF, Cs 2 CO 3 , BaF 2 , MgO, NaF, etc.).
- organic metal compounds such as.
- lithium quinolinate can be used.
- the layer thickness of this layer is preferably between 0.5 and 5 nm.
- the anode high workfunction materials are preferred.
- the anode has a work function greater than 4.5 eV against vacuum.
- metals with a high redox potential such as Ag, Pt or Au, are suitable for this purpose.
- metal / metal oxide electrodes eg Al / Ni / NiO x , Al / PtO x
- at least one of the electrodes must be transparent or partially transparent to allow either the irradiation of the organic material (O-SC) or the outcoupling of light (OLED / PLED, O-laser).
- Preferred anode materials here are conductive mixed metal oxides. Particularly preferred are indium tin oxide (ITO) or indium zinc oxide (IZO). Preference is furthermore given to conductive, doped organic materials, in particular conductive doped polymers.
- the organic electroluminescent device may contain further layers. These can be, for example: hole injection layer, hole transport layer, Electron blocking layer, exciton blocking layer, hole blocking layer, electron transport layer, electron injection layer and / or a charge generation layer. However, it should be noted at this point that not necessarily each of these layers must be present.
- an organic electroluminescent device characterized in that one or more layers are coated with a sublimation process.
- the materials in vacuum sublimation are "evaporated 5 mbar, preferably less than 10 -6 mbar.
- the initial pressure may be even lower, for example less than 10" at an initial pressure of less than 10 7 mbar.
- organic electroluminescent device characterized in that one or more layers with the
- OVPD Organic Vapor Phase Deposition
- carrier gas sublimation a carrier gas sublimation
- the materials are applied at a pressure between 10 "applied 5 mbar and 1 bar.
- OVJP organic vapor jet printing
- the materials are applied directly through a nozzle and patterned (eg. BMS Arnold et al., Appl. Phys. Lett., 2008, 92, 053301).
- an organic electroluminescent device characterized in that one or more layers of solution, such. B. by spin coating, or with any printing process, such.
- any printing process such as screen printing, flexographic printing, offset printing, LITI (Light Induced Thermal Imaging, thermal transfer printing), ink-jet printing (inkjet printing) or Nozzle-Printing, are produced.
- soluble compounds according to formula (1) are necessary. High solubility can be achieved by suitable substitution of the compounds.
- the organic electroluminescent device can also be fabricated as a hybrid system by applying one or more layers of solution and one or more other layers be evaporated.
- an emitting layer containing a compound of the formula (1) and a phosphorescent dopant from solution and then evaporate a hole blocking layer and / or an electron transport layer in vacuo.
- the emitting layer containing a compound according to formula (1) and a phosphorescent dopant can be vacuum-deposited and one or more other layers can be applied from solution.
- Another object of the present invention are mixtures comprising at least one phosphorescent emitter and at least one compound according to formula (1).
- Yet another object of the present invention is the use of compounds according to formula (1) as a matrix material for phosphorescent emitters in an organic electroluminescent device.
- the device is structured accordingly (depending on the application), contacted and finally hermetically sealed because the life of such devices drastically shortened in the presence of water and / or air.
- the compounds according to the invention When used in organic electroluminescent devices, the compounds according to the invention have the following surprising advantages over the prior art: 1. The performance efficiency of corresponding devices becomes higher as compared to prior art systems.
- the organic electroluminescent devices according to the invention have a very high efficiency.
- the improved efficiency may be due to improved electron injection from the electron transport layer into the emitting layer. 15
- O-FETs Organic Feid-Effect Transistors
- O-TFTs Organic Thin Film transistors
- O-LETs organic light-emitting transistors
- O-ICs organic integrated circuits
- O-SCs organic solar cells
- O-FQDs organic field quench devices
- LECs light-emitting electrochemical cells
- O-lasers organic laser diodes
- reaction mixture is heated under reflux for 5 h. After cooling to room temperature, 1000 ml of water are added. The organic phase is washed with 4 x 250 mL H 2 O, then dried with MgSO 4 and the solvent removed under reduced pressure. The pure one
- Example 7 10- (4,6-Diphenyl- [1,3,5] triazin-2-yl) -12,12-dimethyl-10,12-dihydro-10-aza-indeno [2,1 -b] fluorene
- the mixture is partitioned between water and dichloromethane, the aqueous phase extracted three times with dichloromethane, the combined organic Phases dried over Na 2 SO 4 and concentrated by rotary evaporation. The residue is recrystallized from toluene / heptane. The yield is 5 g (5 mmol, 50%).
- [2,1-b] fluorene are dissolved in 275 ml of dimethylformamide under a protective gas atmosphere and admixed with 1.45 g of NaH, 60% in mineral oil (36 mmol). After 1 h at room temperature, a solution of 2-chloro-4,6-diphenyl- [1,3,5] triazine (8.2 g, 30.5 mmol) in 75 ml of dimethylformamide is added dropwise. The reaction mixture is then stirred for 12 h at room temperature. To At this time, the reaction mixture is poured onto ice and extracted three times with dichloromethane. The combined organic phases are dried over Na 2 SO 4 and concentrated. The residue is extracted hot with toluene. The yield is 14.7 g (24.9 mmol, 90%).
- Example 11 10- (4,6-Diphenyl-pyrimidin-2-yl) -12,12-dimethyl-10,12-dihydro-10-aza-indeno [2,1-biofluorene
- Example 12 10- (4,6-Diphenyl-1- [1,3,5] triazin-2-yl) -10,12-dihydro-10-aza-indeno [2,1-b] -12,12- spirofluorene
- Example 13 10- (4,6-Bis-biphenyl-3-yl- [1,3,5] triazin-2-yl) -12,12-dimethyl-10,12-dihydro-10-aza-indeno [ fluorene 2,1-b]
- Example 14 10- (4,6-Di-phenyl-1,3,5-triazin-2-yl) -12,12,12,12'-tetramethyl-10,12-dihydro-12 ⁇ - [7, 1 O'lbiflO-aza-indenofrl -b] fluorenyl]
- Example 15 7- (3,6-Diphenyl-carbazol-9-yl) -10- (4,6-diphenyl- [1,3,5] -triazin-2-yl) -12,12-dimethyl-10 fluorene, 12-dihydro-10-aza-indeno [2,1-b]
- Example 16 7- (4,6-Diphenyl-pyrimidin-2-yl) -10- (4,6-diphenyl- [1,3,5] -triazin-2-yl) -12,12-dimethyl-10 fluorene, 12-dihydro-10-aza-indeno [2,1-b]
- Example 17 10- (2,6-Diphenyl-pyridin-4-yl) -12,12-dimethyl-10,12-dihydro-10-aza-indeno [2,1-b] fluorene
- a solution of 50 g (211 mmol) of 2,6-dibromopyridine in 250 ml of trifluoroacetic acid is heated to 90 ° C., 53 ml (515 mmol) of a 33% hydrogen peroxide solution are added dropwise. After 3 h, the reaction mixture is cooled and poured onto 200 ml of ice-water. The filtrate is extracted three times with DCM, the combined organic phases are washed four times with a 0.5 MK 2 CO 3 solution, dried over Na 2 SO 4 and concentrated. The residue 2,6-dibromopyridine-1-oxide (41, 2 g) is used further.
- a solution of 20 g (78 mmol) of 2,6-dibromopyridine-1-oxide is heated to 40 ° C. in 70 ml of H 2 SO 4 . At this temperature, the solution is treated with nitrating acid (70 ml H 2 SO 4 and 34 ml fuming HNO 3 ). The reaction mixture is heated at 90 ° C. for 3 h. After cooling, it is poured onto 800 ml of ice water. The precipitated solid is filtered and washed with water.
- Residue is recrystallized from EtOH. Yield: 41.7 g (148 mmol), 70% of theory.
- the Residue is suspended together with 0.7 g (0.6 mmol) of Pd (PPh 3 ) 4 in 50 ml of THF, and 69 ml of 34.7 mmol of a pyridylzinc bromide THF solution (0.5 M, 34.7 mmol).
- the reaction mixture is stirred for 12 hours at room temperature, the mixture is poured onto an EDTA / Na 2 CO 3 solution and extracted three times with Et 2 O.
- the residue is extracted with hot toluene, recrystallised from toluene and finally sublimed under high vacuum , the purity is 99.9% Yield: 7.5g, 50% of theory
- Example 19 10- (3,5-Di-pyrimidin-2-yl-phenyl) -12,12-dimethyl-10,12-dihydro-10-aza-indeno [2,1-b] fluorene
- Example 20 10- (4,6-bis [1,1 l; ll 3M] terphenyl-5 l -yl [1, 3,5] triazin-2-yl) - 12,12-dimethyl-10 12-dihydro-10-aza-indeno [2,1-b] fluorene
- the cooled Grignard reagent is added dropwise and stirred for 12 h at RT After this time, the reaction mixture is mixed with 150 ml of HCl and The aqueous phase extracted three times with dichloromethane. The combined organic phases are washed with water, dried over Na 2 SO 4 and concentrated. The residue is recrystallized from EtOH. The yield is 27.8 g (49 mol, 70%).
- Example 22 12,12-Dimethyl-10- [1,1 ', 3 g , 1 "Jterphenyl-S'-yM 0,12-dihydro-10-aza-indeno [2,1-b] fluorene
- Example 23 10-JS ⁇ ⁇ -DiphenyKI.S.Sltriazine ⁇ -yO-phenyl] - ⁇ , ⁇ -dimethyl-10,12-dihydro-10-aza-indeno [2,1-b] fluorene
- the mixture is partitioned between water and dichloromethane, the aqueous phase extracted three times with dichloromethane, the combined organic phases dried over Na 2 SO 4 and concentrated by rotary evaporation. The residue is recrystallized from toluene / heptane. The yield is 13.4 g (13.5 mmol, 45%).
- Example 25 7- (4,6-Diphenyl- [1,3,5] triazin-2-yl) -7H-12-oxa-7-aza-indeno [1,2-a] fluorene
- Example 26 10-Biphenyl-4-yl-7- (4,6-diphenyl- [1,3,5] triazin-2-yl) -12,12-dimethyl-10,12-dihydro-10-aza fluorene indeno [2,1-b]
- reaction mixture is post-degassed and then stirred under reflux for 3 h.
- the warm reaction solution is filtered through Alox B (activity level 1), washed with water, dried and concentrated. After crystallization from toluene, 15.6 g (50.8%) of the product are obtained as a white solid with 99.7% purity.
- Example 28 7- (4,6-Diphenyl- [1,3,5] triazin-2-yl) -12,12-dimethyl-10- [1,1 L ; 3M > f ] terphenyl-5 L -yl -10,12-dihydro-10-aza-indeno [2,1-b] fluorene
- Example 29 7- (4,6-Diphenyl- [1,3,5] triazin-2-yl) -12,12-dimethyl-10-phenyl-10,12-dihydro-10-aza-indeno [2, fluoren 1-b]
- the crude product is Soxhletiert via heptane / toluene, is crystallized from heptane and is obtained by sublimation 5.6 g (60%) of the product as a yellowish solid with a purity of 99.9%.
- Example 31 10,10'-di- (1,3-pyrimidin-2-yl) -10,10M2,12'-tetrahydro-10,10'-di (aza-indeno [2,1-b] -12 , 12-spiro fluorene
- the mixture is partitioned between water and dichloromethane, the aqueous phase extracted three times with dichloromethane and the combined organic phases dried over Na 2 SO 4 and concentrated by rotary evaporation. The residue is recrystallized from toluene / heptane. The yield is 19.8 g (40 mmol, 50%).
- Example 36 10- [4,6-Bis (4-tert-butylphenyl) - [1, 3,5] triazin-2-yl] -12,12-dimethyl-10,12-dihydro-10 fluorene aza-indeno [2,1-b] Step a): 2,4-bis (4-tert-butyl-phenyl) -6-chloro [1,3,5] triazine
- reaction mixture is mixed with 150 ml of HCl ml and the aqueous phase extracted three times with dichloromethane. The combined organic phases are washed with water, dried over Na 2 SO 4 and concentrated. The residue is recrystallized from EtOH. The yield is 31 g (81, 6 mmol, 80%).
- Example 37 10- (4,6-Bis- (3 - ([3,1 ' , 5,1 "] -terphen-1-yl) -phen-1-yl) -
- reaction mixture is treated with 150 ml of HCl, the aqueous phase extracted three times with dichloromethane. the combined organic phases are washed with water and dried over Na 2 SO 4 and concentrated, the residue is recrystallized from toluene, the yield is 6.8 g (9.4 mmol, 28%).
- Example 38 7- (3 - ([3,1 ' , 5,1 "] terphen-1-yl) -phen-1-yl) -10- (4,6-diphenyl-
- Reaction mixture is then stirred at 80 0 C for 48 h under a protective gas atmosphere.
- the cooled solution is replenished with toluene and washed several times with water, dried and concentrated.
- the residue is recrystallized from heptane / toluene. The yield is 21.8 g (26.6 mmol, 63.2%).
- Example 39 12- (4,6-Di-phenyl- [1,3,5] triazin-2-yl) -7-thia-12-aza-indeno [1,2-a] fluorene Nitro-phenyl) -dibenzothiophen
- Example 40 7- ⁇ 10- (4,6-Diphenyl- [1,3,5] triazin-2-yl) -12,12-dimethyl-10,12-dihydro-10-aza-indeno [2.1 -b] fluorenyl ⁇ -12,12-dimethyl-10-phenyl-10,12-dihydro-10-aza-indeno [2,1-b] fluorene
- Example 41 4- (7- (4,6-Diphenyl- [1,3,5] triazin-2-yl) -12,12-dimethyl-10 5 -12-dihydro-10-aza-indeno [2.1 -b] fluoren-10-yl) - 4 '- (12,12-dimethyl-10,12-dihydro-10-aza-indeno [2,1-b] fluoren-10-yl) -biphenyl
- Example 42 7-Dibenzofuran-4-yl-10- (4,6-diphenyl- [1,3,5] triazin-2-yl) -12,12-dimethyl-10,12-dihydro-10-aza indeno [2, 1-b] f I uoren
- [2,1-b] fluorene 19.9 g (94 mmol) of dibenzofuran-4-boronic acid and 164 ml of saturated NaHCO 3 solution are suspended in 1640 ml of toluene and 164 ml of ethanol. 1.9 g (1.6 mmol) of Pd (PPh) 3 are added to this suspension, and the reaction mixture is refluxed for 16 h. After cooling, the organic phase is separated, filtered through silica gel, washed three times with 200 ml_ of water and then concentrated to dryness. The yield is 26.7 g (59 mmol), corresponding to 65% of theory.
- reaction mixture is poured onto ice and extracted three times with dichloromethane.
- the combined organic phases are dried over Na 2 SO 4 and concentrated.
- the residue is extracted with hot toluene, recrystallized from dichloromethane / isopropanol and finally sublimed under high vacuum, the purity is 99.9%.
- the yield is 21.4 g (28 mmol, 42%).
- the mixture is partitioned between water and dichloromethane, the aqueous phase extracted three times with dichloromethane, the combined organic phases dried over Na 2 SO 4 and concentrated by rotary evaporation. The residue is recrystallized from toluene / heptane. The yield is 18.5 g (65.1 mmol, 50%).
- Example 46 [3 '- (12,12-Dimethyl-12H-10-aza-indeno [2,1-b] fluorene-10-yl) -biphenyl-3-yl] -phenyl-methanone m-biphenyl-3 yl) phenyl-methanone
- Reaction mixture concentrated to dryness.
- the solid is taken up in 1000 ml of NMP and heated to reflux for 12 h with 40 ml of water and 2 ml of glacial acetic acid.
- a mixture of 600 ml of methanol and 600 ml of 1 N hydrochloric acid is added and the precipitated solid is separated by filtration and dried.
- the crude product is recrystallized from toluene / heptane.
- the yield at a purity> 98% by HPLC is 27.1 g (80.5 mmol) corresponding to 79.7% of theory.
- the purity is 99.9%.
- Example 47 Bis- [3 '- (12,12-dimethyl-12H-10-aza-indeno [2,1-b] fluoren-10-yl) -biphenyl-3-yl] -methanone
- Example 48 [3 '- (12,12-Dimethyl-10-phenyl-10,12-dihydro-10-aza-indeno [2,1-b] fluorene-7-yl) -biphenyl-3-yl] - phenyl-methanone
- Step a): 7- (3'-Benzoyl-biphenyl-3-yl) -12,12-dimethyl-12H-10 aza-indeno [2,1-b] fluorenene-10-carboxylic acid tert-butyl ester
- N 1 N 1 - bis (2-chloro-phenyl) -9,9-dimethyl-9H-fluoren-2,7-diamine is recrystallized from toluene / ethyl acetate.
- the yield is 32.5 g (73 mmol, 63.5%).
- the mixture is partitioned between water and dichloromethane, the aqueous phase extracted three times with dichloromethane, the combined organic phases dried over Na 2 SO 4 and concentrated by rotary evaporation. The residue is recrystallized from toluene / heptane. The yield is 15.1 g (37.5 mmol, 59.5%).
- reaction mixture is post-degassed and then stirred under reflux for 5 h.
- the warm reaction solution is filtered through Alox B (activity level 1), washed with water, dried and concentrated. After crystallization from toluene, 15.6 g (30.4 mmol) (43%) of the product are obtained as a white solid.
- Example 53 is (3-bromophenyl) -6-phenyl- [1,3,5] triazines
- the OLEDs have in principle the following layer structure: Substrate / optional hole injection layer (HIL) / hole transport layer (HTL) / optional interlayer (IL) / electron blocker layer (EBL) / emission layer (EML) / optional hole blocking layer (HBL) / electron transport layer (ETL) / optional electron injection layer
- the cathode is formed by a 100 nm thick aluminum layer.
- the exact structure of the OLEDs is shown in Table 2.
- the materials needed to make the OLEDs are shown in Table 4.
- the emission layer always consists of at least one matrix material (host material, host material) and an emitting dopant (dopant, emitter), which is admixed to the matrix material or the matrix materials by co-evaporation in a specific volume fraction.
- the electron transport layer may consist of a mixture of two materials.
- the OLEDs are characterized by default.
- the lifetime is defined as the time after which the luminance has dropped to a certain level from a certain starting luminance.
- the term LD50 means that the said lifetime is the time at which the luminance has dropped to 50% of the starting luminance, ie from 4000 cd / m 2 to 2000 cd / m 2 .
- the values for the lifetime can be converted to an indication for other starting luminous densities with the aid of conversion formulas known to the person skilled in the art.
- the Lifespan for a starting luminance of 1000 cd / m 2 a usual indication.
- Examples V1-V22 are comparative examples according to the prior art, examples E1-E106 show data of OLEDs in which materials according to the invention are used.
- the OLEDs V1-V3, V9 are comparative examples in which the materials Alq 3 , ETM1 and ST1 according to the prior art are used as electron transport materials.
- the emitters used are the blue-emitting material D1 and the green-emitting materials D2 and TEG1, which are doped into the matrix materials H1, H2 or H4.
- the blue-emitting OLEDs V1, V2, E1, E3 and E5 show a comparable lifetime of about 150 h with a starting brightness of 6000 cd / m 2 . This corresponds to about 5500 h at a starting brightness of 1000 cd / m 2 , if the expert is based on known conversion formulas.
- the green emitting OLEDs V3 and E2 show a comparable lifetime of about 470 h with a starting brightness of 25000 cd / m 2 , which corresponds to a lifetime of about 300,000 h at 1000 cd / m 2 .
- the OLEDs E1-E3 and E5 contain the compound of the invention H4 or H7 as Elektronenransportmatehal.
- the materials according to the invention can be used profitably on the hole transport side of OLEDs, more precisely as hole transport or electron blocking materials. This is shown by Examples E4, E7-E15 and E74-77.
- the comparative examples V1-V3, V6, V9, V12 and V20 according to the prior art contain the material HTM1 or SpNPB as hole transporting and NPB or EBM1 as electron blocking material.
- HTM3 is used as the electron blocking material, there is also a slight improvement in the operating voltage and power efficiency compared to NPB (comparison of example E7 with example V2 or example E8 with example V3). Much more important, however, is that the lifetime can be increased by using HTM3 at blue emission (eg E7) to about 7400 h at 1000 cd / m 2 , ie about 40% compared to NPB. In the case of green emission, the improvement in life is slightly lower, resulting in an increase of about 25%, which corresponds to a lifetime of about 375,000 h for example E8. Similar improvements are seen in the use of HTM5 as electron blocking material (E14 and E15).
- the compounds according to the invention show a significant improvement in the power efficiency of up to 25%, the lifetime likewise being slightly improved (Examples V9 and E11 or E15).
- the HTM4 compound can also be used as a single layer, which significantly reduces the processing effort.
- the power efficiency increases by almost 15%, while the life compared to the prior art remains approximately the same (Examples V9 and E12).
- the use of compounds according to the invention on the hole transport side of OLEDs thus results in significant improvements in terms of operating voltage, power efficiency, service life and processing complexity.
- the compounds according to the invention can furthermore be used as matrix materials (host materials, host materials) for phosphorescent dopants.
- the compounds H4-H27, H31-H42 and H44-H48 are used as individual materials or also in combination with CBP.
- the compound ST1 and Ket1 are used as a comparison according to the prior art.
- OLEDs are compared with the green emitting dopant TEG1 and the red emitting dopants TER1 and TER2.
- the materials according to the invention When used as matrix materials in phosphorescent OLEDs, the materials according to the invention thus provide essential
- Mixed matrix systems ie OLEDs with an emission layer consisting of three or more components, show in some cases clear advantages over systems with single matrix materials.
- the compounds according to the invention can also be used profitably in such systems. Compared to mixed matrix components according to the prior art, there are significant improvements in terms of efficiency, voltage and service life.
- As compounds according to the The prior art uses the materials CBP, TCTA and FTPh (see Table 4).
- the corresponding OLEDs are labeled V6, V10 and V13-V18.
- the compounds H17, H28-H30 and H43 are used in combination with the matrix materials ST1, Ket1 and DAP1.
- the corresponding OLEDs are designated E60-E72 and E78.
- Example 56 Preparation of solution-processed OLEDs
- the structures of the emitter T1 used in the solution-processed OLED, of the matrix materials SH1, SH2 according to the invention and of the further matrix components C1 and C2 are shown in Table 5 for the sake of clarity.
- Inventive materials can also be used from solution and lead there to much simpler devices with good properties.
- the production of such components is based on the production of polymeric light-emitting diodes (PLEDs), which has already been described many times in the literature (eg in WO 2004/037887 A2).
- PLEDs polymeric light-emitting diodes
- the compounds according to the invention are dissolved in toluene or chlorobenzene.
- Concentration is 20% by weight of the emitter and 80% by weight of the compounds SH1 and SH2.
- the typical solids content of such solutions is between 16 and 25 g / L, if, as here, the typical for a device layer thickness of 80 nm is to be achieved by spin coating.
- the typical structure of the solution-processed OLED is the following: ITO anode // 80 nm buffer layer (PEDOT) // 20 nm intermediate layer
- Interlayer, HIL-012) 80nm emitting layer (T1 in SH1 or SH2) // cathode (3nm Ba, 150nm Al).
- EML emission layer
- the dissolved matrix materials and the emitter are in the form of an amorphous layer.
- Structured ITO substrates and the material for the so-called buffer layer (PEDOT, actually PEDOT.PSS) are commercially available (ITO from Technoprint and others, PEDOT: PPS as aqueous dispersion Clevios P from HC Starck).
- the interlayer used is the hole injection; in this case, Merck uses HIL-012.
- the emission layer is spin-coated in an inert gas atmosphere, in the present case argon, and baked at 160 ° C. (SH 1 ) or 180 ° C. (SH 2 ) for 10 minutes. Finally, a cathode of barium and aluminum is evaporated in vacuo. Between EML and cathode, the layers HBL and ETL used in the aforementioned examples can also be applied by vapor deposition, and the interlayer can also be replaced by one or more layers, which merely have to fulfill the condition, by the subsequent processing step of the EML deposition from solution not to be replaced again.
- the solution-processed devices are characterized by default and are not optimized.
- Solution-based OLEDs have the advantage, in addition to the cheaper production, that materials can be combined in one layer easily and in a reproducible concentration.
- the materials SH1 and SH2 according to the invention can therefore also be combined with other matrix materials ("co-hosts")
- the materials C1 and C2 are used in each case in a ratio of 1: 1 relative to the other matrix component SH1 or SH2 Concentrations mean that 40 mg / ml SH1 or SH2, 40 mg / ml co-host and 20 mg / ml T1 are weighed in.
- the solvent used in the case of C1 is chlorobenzene, in the case of C2 it is toluene, otherwise the OLEDs will open
- the structure of the solution-processed OLED is the following: ITO anode // 80 nm buffer layer (PEDOT) // 20 nm intermediate layer (interlayer, HIL-012) // 80 nm emissive layer (T1 in SH1 or SH2, each + co-host) // cathode (3 nm Ba, 150 nm Al) This design is also used in the OLEDs listed in Table 7.
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Publication number | Publication date |
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JP2012528088A (ja) | 2012-11-12 |
TWI469967B (zh) | 2015-01-21 |
CN102448946A (zh) | 2012-05-09 |
US9537105B2 (en) | 2017-01-03 |
US9126970B2 (en) | 2015-09-08 |
JP5819289B2 (ja) | 2015-11-24 |
US20120068170A1 (en) | 2012-03-22 |
CN102448946B (zh) | 2015-10-21 |
KR20100129101A (ko) | 2010-12-08 |
US20150318478A1 (en) | 2015-11-05 |
KR101381505B1 (ko) | 2014-04-04 |
TW201114742A (en) | 2011-05-01 |
DE102009023155A1 (de) | 2010-12-02 |
DE112010002609A5 (de) | 2012-08-02 |
CN105218525A (zh) | 2016-01-06 |
KR20100130197A (ko) | 2010-12-10 |
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