WO2010110553A2 - Novel organic electroluminescent compounds and organic electroluminescent device using the same - Google Patents
Novel organic electroluminescent compounds and organic electroluminescent device using the same Download PDFInfo
- Publication number
- WO2010110553A2 WO2010110553A2 PCT/KR2010/001691 KR2010001691W WO2010110553A2 WO 2010110553 A2 WO2010110553 A2 WO 2010110553A2 KR 2010001691 W KR2010001691 W KR 2010001691W WO 2010110553 A2 WO2010110553 A2 WO 2010110553A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substituent
- organic electroluminescent
- ring
- alkyl
- aryl
- Prior art date
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 54
- 238000002347 injection Methods 0.000 claims abstract description 24
- 239000007924 injection Substances 0.000 claims abstract description 24
- 230000005525 hole transport Effects 0.000 claims abstract description 15
- 125000001424 substituent group Chemical group 0.000 claims description 89
- 239000010410 layer Substances 0.000 claims description 41
- 239000000126 substance Substances 0.000 claims description 23
- -1 cyano, carboxyl Chemical group 0.000 claims description 21
- 125000001072 heteroaryl group Chemical group 0.000 claims description 21
- 125000006743 (C1-C60) alkyl group Chemical group 0.000 claims description 20
- 125000006749 (C6-C60) aryl group Chemical group 0.000 claims description 16
- 125000003118 aryl group Chemical group 0.000 claims description 16
- 239000012044 organic layer Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 239000002019 doping agent Substances 0.000 claims description 10
- 125000006818 (C3-C60) cycloalkyl group Chemical group 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 125000004450 alkenylene group Chemical group 0.000 claims description 8
- 125000005104 aryl silyl group Chemical group 0.000 claims description 8
- 125000002950 monocyclic group Chemical group 0.000 claims description 8
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 7
- 229910052805 deuterium Inorganic materials 0.000 claims description 7
- 125000002947 alkylene group Chemical group 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 125000003545 alkoxy group Chemical group 0.000 claims description 5
- 125000006820 (C1-C60) alkylthio group Chemical group 0.000 claims description 4
- 125000006751 (C6-C60) aryloxy group Chemical group 0.000 claims description 4
- 125000006752 (C6-C60) arylthio group Chemical group 0.000 claims description 4
- 125000005073 adamantyl group Chemical group C12(CC3CC(CC(C1)C3)C2)* 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000005103 alkyl silyl group Chemical group 0.000 claims description 4
- 150000001602 bicycloalkyls Chemical group 0.000 claims description 4
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 4
- 125000005842 heteroatom Chemical group 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 4
- 125000003367 polycyclic group Chemical group 0.000 claims description 4
- 125000006746 (C1-C60) alkoxy group Chemical group 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 125000000304 alkynyl group Chemical group 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 125000006582 (C5-C6) heterocycloalkyl group Chemical group 0.000 claims description 2
- 125000006761 (C6-C60) arylene group Chemical group 0.000 claims description 2
- 125000003342 alkenyl group Chemical group 0.000 claims description 2
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 2
- 125000005194 alkoxycarbonyloxy group Chemical group 0.000 claims description 2
- 125000004448 alkyl carbonyl group Chemical group 0.000 claims description 2
- 125000005196 alkyl carbonyloxy group Chemical group 0.000 claims description 2
- 125000004419 alkynylene group Chemical group 0.000 claims description 2
- 125000005129 aryl carbonyl group Chemical group 0.000 claims description 2
- 125000005199 aryl carbonyloxy group Chemical group 0.000 claims description 2
- 125000005161 aryl oxy carbonyl group Chemical group 0.000 claims description 2
- 125000005200 aryloxy carbonyloxy group Chemical group 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- 125000005549 heteroarylene group Chemical group 0.000 claims description 2
- 125000000592 heterocycloalkyl group Chemical group 0.000 claims description 2
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 229910052723 transition metal Inorganic materials 0.000 claims description 2
- 150000003624 transition metals Chemical class 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 11
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 10
- 238000001771 vacuum deposition Methods 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000012153 distilled water Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 230000002829 reductive effect Effects 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 0 BC1(*)CC2[C@]3C(*CC)*C(*CCN(C)C*)CC3N(*)C2CC1 Chemical compound BC1(*)CC2[C@]3C(*CC)*C(*CCN(C)C*)CC3N(*)C2CC1 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004440 column chromatography Methods 0.000 description 4
- 125000001624 naphthyl group Chemical group 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 125000004076 pyridyl group Chemical group 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229940126062 Compound A Drugs 0.000 description 3
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000005428 anthryl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C3C(*)=C([H])C([H])=C([H])C3=C([H])C2=C1[H] 0.000 description 3
- 235000010290 biphenyl Nutrition 0.000 description 3
- 239000004305 biphenyl Substances 0.000 description 3
- 125000002676 chrysenyl group Chemical group C1(=CC=CC=2C3=CC=C4C=CC=CC4=C3C=CC12)* 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- JNGZXGGOCLZBFB-IVCQMTBJSA-N compound E Chemical compound N([C@@H](C)C(=O)N[C@@H]1C(N(C)C2=CC=CC=C2C(C=2C=CC=CC=2)=N1)=O)C(=O)CC1=CC(F)=CC(F)=C1 JNGZXGGOCLZBFB-IVCQMTBJSA-N 0.000 description 3
- 125000003914 fluoranthenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC=C4C1=C23)* 0.000 description 3
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 3
- 125000005956 isoquinolyl group Chemical group 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical group C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=C(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C3=CC=CC=C3C=CC=2)C=C1 IBHBKWKFFTZAHE-UHFFFAOYSA-N 0.000 description 3
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 3
- 125000005561 phenanthryl group Chemical group 0.000 description 3
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 description 3
- 125000001725 pyrenyl group Chemical group 0.000 description 3
- 125000005493 quinolyl group Chemical group 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 3
- 125000004306 triazinyl group Chemical group 0.000 description 3
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 description 3
- GHYOCDFICYLMRF-UTIIJYGPSA-N (2S,3R)-N-[(2S)-3-(cyclopenten-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[[(2S)-2-[(2-morpholin-4-ylacetyl)amino]propanoyl]amino]propanamide Chemical compound C1(=CCCC1)C[C@@H](C(=O)[C@@]1(OC1)C)NC([C@H]([C@@H](C1=CC=C(C=C1)OC)O)NC([C@H](C)NC(CN1CCOCC1)=O)=O)=O GHYOCDFICYLMRF-UTIIJYGPSA-N 0.000 description 2
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 2
- VFUDMQLBKNMONU-UHFFFAOYSA-N 9-[4-(4-carbazol-9-ylphenyl)phenyl]carbazole Chemical group C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 VFUDMQLBKNMONU-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- 150000001204 N-oxides Chemical class 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229940125904 compound 1 Drugs 0.000 description 2
- 229940125797 compound 12 Drugs 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 2
- IMKMFBIYHXBKRX-UHFFFAOYSA-M lithium;quinoline-2-carboxylate Chemical compound [Li+].C1=CC=CC2=NC(C(=O)[O-])=CC=C21 IMKMFBIYHXBKRX-UHFFFAOYSA-M 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 2
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 238000006862 quantum yield reaction Methods 0.000 description 2
- XSCHRSMBECNVNS-UHFFFAOYSA-N quinoxaline Chemical compound N1=CC=NC2=CC=CC=C21 XSCHRSMBECNVNS-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical group 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- NRESDXFFSNBDGP-UHFFFAOYSA-N (4-bromophenyl)hydrazine Chemical compound NNC1=CC=C(Br)C=C1 NRESDXFFSNBDGP-UHFFFAOYSA-N 0.000 description 1
- 125000006744 (C2-C60) alkenyl group Chemical group 0.000 description 1
- SWJPEBQEEAHIGZ-UHFFFAOYSA-N 1,4-dibromobenzene Chemical compound BrC1=CC=C(Br)C=C1 SWJPEBQEEAHIGZ-UHFFFAOYSA-N 0.000 description 1
- XEZNGIUYQVAUSS-UHFFFAOYSA-N 18-crown-6 Chemical compound C1COCCOCCOCCOCCOCCO1 XEZNGIUYQVAUSS-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Natural products C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 1
- OGGKVJMNFFSDEV-UHFFFAOYSA-N 3-methyl-n-[4-[4-(n-(3-methylphenyl)anilino)phenyl]phenyl]-n-phenylaniline Chemical compound CC1=CC=CC(N(C=2C=CC=CC=2)C=2C=CC(=CC=2)C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C=C(C)C=CC=2)=C1 OGGKVJMNFFSDEV-UHFFFAOYSA-N 0.000 description 1
- CLTQYRJHJBWTCY-UHFFFAOYSA-N CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3)cc(c4c5ccc6ccccc46)c3[n]5-c3ccccc3)c(cc3)ccc3-c(cc3)cc(c4c(cccc5)c5ccc44)c3[n]4-c3ccccc3)c2-c2ccccc12 Chemical compound CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3)cc(c4c5ccc6ccccc46)c3[n]5-c3ccccc3)c(cc3)ccc3-c(cc3)cc(c4c(cccc5)c5ccc44)c3[n]4-c3ccccc3)c2-c2ccccc12 CLTQYRJHJBWTCY-UHFFFAOYSA-N 0.000 description 1
- MMAZRZNCKOMTCT-UHFFFAOYSA-N CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3)ccc3N(c3ccccc3)c(cc3)cc4c3c(-c(cccc3C5(C)C)c3-c(cc3)c5cc3N(c(cc3)ccc3-c(cc3)cc(c5c6ccc7c5cccc7)c3[n]6-c3ccccc3)c(cc3C5(C)C)ccc3-c(cc3)c5cc3N(c3ccccc3)c3ccccc3)ccc4)c(cc3)ccc3-c(cc3)cc(c4c(cccc5)c5ccc44)c3[n]4-c3ccccc3)c2-c2ccccc12 Chemical compound CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3)ccc3N(c3ccccc3)c(cc3)cc4c3c(-c(cccc3C5(C)C)c3-c(cc3)c5cc3N(c(cc3)ccc3-c(cc3)cc(c5c6ccc7c5cccc7)c3[n]6-c3ccccc3)c(cc3C5(C)C)ccc3-c(cc3)c5cc3N(c3ccccc3)c3ccccc3)ccc4)c(cc3)ccc3-c(cc3)cc(c4c(cccc5)c5ccc44)c3[n]4-c3ccccc3)c2-c2ccccc12 MMAZRZNCKOMTCT-UHFFFAOYSA-N 0.000 description 1
- RSXZPHIDZKDTDA-UHFFFAOYSA-N CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3)ccc3N(c3ccccc3)c3ccccc3)c(cc3)ccc3-c(cc3)cc(c4c5ccc6c4cccc6)c3[n]5-c3ccccc3)c2-c2ccccc12 Chemical compound CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3)ccc3N(c3ccccc3)c3ccccc3)c(cc3)ccc3-c(cc3)cc(c4c5ccc6c4cccc6)c3[n]5-c3ccccc3)c2-c2ccccc12 RSXZPHIDZKDTDA-UHFFFAOYSA-N 0.000 description 1
- DQTKECNPKBSPBD-UHFFFAOYSA-N CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3c4c(cccc5)c5ccc44)ccc3[n]4-c3ccccc3)c(cc3)cc(C4(C)C)c3-c3c4cccc3)c2-c2ccccc12 Chemical compound CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3c4c(cccc5)c5ccc44)ccc3[n]4-c3ccccc3)c(cc3)cc(C4(C)C)c3-c3c4cccc3)c2-c2ccccc12 DQTKECNPKBSPBD-UHFFFAOYSA-N 0.000 description 1
- FDOHTTFMEHDTPE-UHFFFAOYSA-N CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3c4c5ccc6c4cccc6)ccc3[n]5-c3ccccc3)c3cc(cccc4)c4cc3)c2-c2ccccc12 Chemical compound CC1(C)c(cc(cc2)N(c(cc3)ccc3-c(cc3c4c5ccc6c4cccc6)ccc3[n]5-c3ccccc3)c3cc(cccc4)c4cc3)c2-c2ccccc12 FDOHTTFMEHDTPE-UHFFFAOYSA-N 0.000 description 1
- AHLQTRYAGYCCJH-UHFFFAOYSA-N CC1(C)c2cc(N(c(cc3)ccc3-c(cc3)ccc3N(c3ccccc3)c3c(cccc4)c4ccc3)c(cc3)ccc3-c(cc3)cc(c4c(cccc5)c5ccc44)c3[n]4-c3ccccc3)ccc2-c2c1cccc2 Chemical compound CC1(C)c2cc(N(c(cc3)ccc3-c(cc3)ccc3N(c3ccccc3)c3c(cccc4)c4ccc3)c(cc3)ccc3-c(cc3)cc(c4c(cccc5)c5ccc44)c3[n]4-c3ccccc3)ccc2-c2c1cccc2 AHLQTRYAGYCCJH-UHFFFAOYSA-N 0.000 description 1
- RHTXWRCKZHYTNH-UHFFFAOYSA-N CC1(C)c2cc(N(c3ccccc3)c(cc3)ccc3-c(cc3)ccc3N(c(cc3)ccc3-c(cc3)cc(c4c(cccc5)c5ccc44)c3[n]4-c3ccccc3)c(cc3)cc4c3-c3ccccc3C4(C)C)ccc2-c2ccccc12 Chemical compound CC1(C)c2cc(N(c3ccccc3)c(cc3)ccc3-c(cc3)ccc3N(c(cc3)ccc3-c(cc3)cc(c4c(cccc5)c5ccc44)c3[n]4-c3ccccc3)c(cc3)cc4c3-c3ccccc3C4(C)C)ccc2-c2ccccc12 RHTXWRCKZHYTNH-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N Pd(PPh3)4 Substances [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000004414 alkyl thio group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-N aluminum;quinolin-8-ol Chemical compound [Al+3].C1=CN=C2C(O)=CC=CC2=C1.C1=CN=C2C(O)=CC=CC2=C1.C1=CN=C2C(O)=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 150000004984 aromatic diamines Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 125000003785 benzimidazolyl group Chemical group N1=C(NC2=C1C=CC=C2)* 0.000 description 1
- 125000002047 benzodioxolyl group Chemical group O1OC(C2=C1C=CC=C2)* 0.000 description 1
- 125000000499 benzofuranyl group Chemical group O1C(=CC2=C1C=CC=C2)* 0.000 description 1
- 125000005874 benzothiadiazolyl group Chemical group 0.000 description 1
- 125000001164 benzothiazolyl group Chemical group S1C(=NC2=C1C=CC=C2)* 0.000 description 1
- 125000004196 benzothienyl group Chemical group S1C(=CC2=C1C=CC=C2)* 0.000 description 1
- 125000004541 benzoxazolyl group Chemical group O1C(=NC2=C1C=CC=C2)* 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 229950011260 betanaphthol Drugs 0.000 description 1
- DMVOXQPQNTYEKQ-UHFFFAOYSA-N biphenyl-4-amine Chemical compound C1=CC(N)=CC=C1C1=CC=CC=C1 DMVOXQPQNTYEKQ-UHFFFAOYSA-N 0.000 description 1
- UFVXQDWNSAGPHN-UHFFFAOYSA-K bis[(2-methylquinolin-8-yl)oxy]-(4-phenylphenoxy)alumane Chemical compound [Al+3].C1=CC=C([O-])C2=NC(C)=CC=C21.C1=CC=C([O-])C2=NC(C)=CC=C21.C1=CC([O-])=CC=C1C1=CC=CC=C1 UFVXQDWNSAGPHN-UHFFFAOYSA-K 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910000024 caesium carbonate Inorganic materials 0.000 description 1
- 150000001716 carbazoles Chemical class 0.000 description 1
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 125000000259 cinnolinyl group Chemical group N1=NC(=CC2=CC=CC=C12)* 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 125000003838 furazanyl group Chemical group 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 125000003453 indazolyl group Chemical group N1N=C(C2=C1C=CC=C2)* 0.000 description 1
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 125000001977 isobenzofuranyl group Chemical group C=1(OC=C2C=CC=CC12)* 0.000 description 1
- 125000000904 isoindolyl group Chemical group C=1(NC=C2C=CC=CC12)* 0.000 description 1
- 125000001786 isothiazolyl group Chemical group 0.000 description 1
- 125000000842 isoxazolyl group Chemical group 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000001715 oxadiazolyl group Chemical group 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004934 phenanthridinyl group Chemical group C1(=CC=CC2=NC=C3C=CC=CC3=C12)* 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000005247 tetrazinyl group Chemical group N1=NN=NC(=C1)* 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 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
- 238000002061 vacuum sublimation Methods 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- 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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/321—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3]
- H10K85/324—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3] comprising aluminium, e.g. Alq3
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
- H10K85/342—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising iridium
Definitions
- the present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device including the same.
- the organic electroluminescent compound according to the present invention may be included in a hole transport layer or a hole injection layer of an organic electroluminescent device.
- electroluminescent (EL) devices are advantageous in that they provide wide view angle, superior contrast and fast response rate as self-emissive display devices.
- Eastman Kodak first developed an organic EL device using low-molecular-weight aromatic diamine and aluminum complex as a substance for forming an electroluminescent layer [Appl. Phys. Lett. 51, 913, 1987].
- an organic EL device when a charge is applied to an organic layer formed between an electron injection electrode (cathode) and a hole injection electrode (anode), an electron and a hole are paired and emit light as the electron-hole pair is extinguished.
- the organic EL device is advantageous in that it can be formed on a flexible transparent substrate such as plastic, is operable with relatively low voltage (10 V or lower) as compared to plasma display panels or inorganic EL displays, consumes less power and provides excellent color.
- the organic materials used in an organic EL device may be classified into an electroluminescent material and a charge transport material.
- the electroluminescent material is directly related with emitted color and luminous efficiency. Some requirements include high fluorescence quantum yield in solid state, high electron and hole mobility, resistance to decomposition during vacuum deposition, ability to form uniform film and stability.
- the hole injection/transport material may include copper phthalocyanine (CuPc),
- TPD N,N'-diphenyl-N,N'-bis(3-methylphenyl)-(l,r-biphenyl)-4,4'-diamine
- MTDATA 4,4',4"-tris(3-methylphenylphenylamino)triphenylamine
- a device using these materials in the hole injection or transfer layer is problematic in efficiency and operation life. It is because, when an organic EL device is driven under high current, thermal stress occurs between an anode and the hole injection layer. The thermal stress significantly reduces the operation life of the device. Further, since the organic material used in the hole injection layer has very high hole mobility, the hole- electron charge balance may be broken and quantum yield (cd/A) may decrease.
- Glass transition temperature (T g ) may be a measure of the amorphousness.
- [8] MTDATA has a glass transition temperature of 76 0 C and cannot be said to have high amorphousness. These materials are not satisfactory in the durability of the organic EL device, as well as in the luminous efficiency, which is determined by the hole injection/transport properties. Disclosure of Invention Technical Problem
- an object of the present invention is to provide an organic electroluminescent compound providing superior luminous efficiency and device operation life as compared to existing hole injection and hole transport materials.
- Another object of the present invention is to provide an organic electroluminescent device employing the novel organic electroluminescent compound in a hole injection layer or a hole transport layer.
- the present invention provides an organic electroluminescent compound represented by Chemical Formula 1 and an organic electroluminescent device comprising the same.
- the organic electroluminescent compound according to the present invention may improve luminous efficiency while lowering driving voltage of the device.
- ring A and ring B independently represent a monocyclic or poly cyclic aromatic ring, a monocyclic or polycyclic hetero aromatic ring, a 5- or 6-membered hetero aromatic ring fused with an aromatic ring or a monocyclic or polycyclic aromatic ring fused with a 5- or 6-membered hetero aromatic ring, excluding the case where the ring A and the ring B are monocyclic aromatic rings at the same time and the substituents R 4 and R 5 are independently hydrogen, (Cl-C60)alkyl, (Cl-C60)alkoxy or (C6-C60)aryl;
- Li represents (C6-C60)arylene with or without substituent(s), (C3-C60)heteroarylene with or without substituent(s), (C3-C60)alkenylene with or without substituent(s) or (C3-C60)alkynylene with or without substituent(s);
- Ari represents (Cl-C60)alkyl with or without substituent(s), (C6-C60)aryl with or without substituent(s), (C3-C60)heteroaryl with or without substituent(s), heterocy- cloalkyl with or without substituent(s), (C3-C60)cycloalkyl with or without substituents), adamantyl with or without substituent(s), (C7-C60)bicycloalkyl with or without substituent(s), (C3-C60)alkenyl with or without substituent(s) or (C3-C60)alkynyl with or without substituent(s);
- R 1 , R 2 , R 3 , R 4 R 5 R 6 and R 7 independently represent hydrogen, deuterium, halogen,
- R 31 through R 38 independently represent (Cl-C60)alkyl, (C3-C60)cycloalkyl,
- (C6-C60)aryl or (C3-C60)heteroaryl may be linked to an adjacent substituent via (C3-C60)alkylene or (C3-C60)alkenylene with or without a fused ring to form a fused ring, and the alkyl, cycloalkyl, aryl or heteroaryl of R 31 through R 38 may be further substituted by one or more substituent(s) selected from a group consisting of hydrogen, deuterium, halogen, (Cl-C60)alkyl, halo(Cl-C60)alkyl, (C6-C60)aryl, (C3-C60)heteroaryl with or without (C6-C60)aryl substituent, cyano, carboxyl, nitro and hydroxyl.
- substituent(s) selected from a group consisting of hydrogen, deuterium, halogen, (Cl-C60)alkyl, halo(Cl-C60)alky
- alkyl includes a linear or branched saturated primary hydrocarbon radical consisting only of carbon and hydrogen atoms or a combination thereof
- alkyloxy and alkylthio respectively mean -O-alkyl and -S-alkyl, where the alkyl is the same as defined above.
- aryl means an organic radical derived from an aromatic hydrocarbon by the removal of one hydrogen atom, and may include a 4- to 7-membered, particularly 5- or 6-membered, single ring or fused ring, including a plurality of aryls linked by chemical bond(s).
- Specific examples include phenyl, naphthyl, biphenyl, anthryl, indenyl, fluorenyl, phenanthryl, triphenylenyl, pyrenyl, perylenyl, chrysenyl, naphthacenyl, fluoranthenyl, etc., but are not limited thereto.
- heteroaryl means an aryl group containing 1 to 4 heteroatom(s) selected from nitrogen (N), oxygen (O), sulfur (S), phosphorus (P) and silicon (Si) as aromatic ring backbone atom(s), other remaining aromatic ring backbone atoms being carbon. It may be 5- or 6-membered monocyclic heteroaryl or polycyclic heteroaryl resulting from condensation with a benzene ring, and may be partially saturated. Further, the heteroaryl includes more than one heteroaryls linked by chemical bond(s).
- the heteroaryl includes a divalent aryl group wherein the heteroatom(s) in the ring may be oxidized or quaternized to form, for example, N- oxide or quaternary salt.
- Specific examples include monocyclic heteroaryl such as furyl, thiophenyl, pyrrolyl, imidazolyl, pyrazolyl, thiazolyl, thiadiazolyl, isothiazolyl, isoxazolyl, oxazolyl, oxadiazolyl, triazinyl, tetrazinyl, triazolyl, tetrazolyl, furazanyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, etc., poly cyclic heteroaryl such as ben- zofuranyl, benzothiophenyl, isobenzofuranyl, benzimidazolyl, benzothiazolyl, ben-
- the substituents including "(Cl-C60)alkyl” may have 1 to 60 carbon atoms, specifically 1 to 20 carbon atoms, more specifically 1 to 10 carbon atoms.
- the substituents including "(C6-C60)aryl” may have 6 to 60 carbon atoms, specifically 6 to 20 carbon atoms, more specifically 6 to 12 carbon atoms.
- the substituents including "(C3-C60)heteroaryl” may have 3 to 60 carbon atoms, specifically 4 to 20 carbon atoms, more specifically 4 to 12 carbon atoms.
- the substituents including "(C3-C60)cycloalkyl” may have 3 to 60 carbon atoms, specifically 3 to 20 carbon atoms, more specifically 3 to 7 carbon atoms.
- the substituents including "(C2-C60)alkenyl or alkynyl” may have 2 to 60 carbon atoms, specifically 2 to 20 carbon atoms, more specifically 2 to 10 carbon atoms.
- the organic electroluminescent compound of the present invention includes the compounds represented by Chemical Formulas 2 to 5:
- ring A, ring B, L 1 , Ar 1 and R 1 through R 7 are the same as defined in Chemical Formula 1.
- the ring A and the ring B may be independently benzene, naphthalene, anthracene, pyridine, quinoline, isoquinoline or quinoxaline, but are not limited thereto.
- R 4 and R 5 substituted at the ring A and the ring B are not independently hydrogen, (Cl-C60)alkyl, (Cl-C60)alkoxy or (C6-C60)aryl.
- R 3 and R 51 may be independently methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, t- butyl, n-pentyl, i-pentyl, n-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n-nonyl, decyl, dodecyl, hexadecyl, benzyl, phenyl, naphthyl, biphenyl, fluorenyl, spirobifluorenyl, phenanthryl, anthryl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, naphthacenyl, perylenyl, pyridyl, quinolyl, isoquinolyl or triazinyl, and the phenyl,
- organic electroluminescent compound according to the present invention may be exemplified by the following compounds, but they do not limit the present invention.
- the organic electroluminescent compound according to the present invention may be prepared by Scheme 1 :
- the present invention also provides an organic electroluminescent device comprising: a first electrode; a second electrode; and one or more organic layer(s) interposed between the first electrode and the second electrode, wherein the organic layer comprises one or more organic electroluminescent compound(s) represented by Chemical Formula 1.
- the organic electroluminescent compound is used in a hole injection layer or a hole transport layer.
- the organic layer may comprise one or more layer(s) comprising the organic electroluminescent compound represented by Chemical Formula 1 and one or more layer(s) comprising a fluorescent host and a fluorescent dopant or a phosphorescent host and a phosphorescent dopant.
- the fluorescent host, the fluorescent dopant, the phosphorescent host and the phosphorescent dopant used in the organic electroluminescent device of the present invention are not particularly limited.
- the organic layer may further comprise one or more metal(s) or complex(es) selected from a group consisting of organic metals of Group 1, Group 2, 4th period and 5th period transition metals, lanthanide metals and d- transition elements, and the organic layer may comprise an electroluminescent layer and a charge generating layer at the same time.
- the organic layer may comprise one or more organic electroluminescent layer(s) emitting blue, red and green light at the same time, in addition to the aforesaid organic electroluminescent compound, to provide a white light-emitting electroluminescent device.
- the compounds emitting blue, red or green light are exemplified in Korean Patent Application Nos. 10-2008-0123276, 10-2008-0107606 and 10-2008-0118428, but are not limited thereto.
- a mixed region of an electron transport compound and a reductive dopant or a mixed region of a hole transport compound and an oxidative dopant may be placed on the inner surface of one or both electrode(s) among the pair of electrodes.
- injection and transport of electrons from the mixed region to the electroluminescent medium become easier because the electron transport compound is reduced to an anion.
- injection and transport of holes from the mixed region to the electroluminescent medium become easier because the hole transport compound is oxidized to a cation.
- Preferred examples of the oxidative dopant include various Lewis acids and acceptor compounds.
- Preferred examples of the reductive dopant include alkali metals, alkali metal compounds, alkaline earth metals, rare earth metals and mixtures thereof.
- the organic electroluminescent compound according to the present invention may improve luminous efficiency while lowering driving voltage of the device.
- the organic compounds including carbazole derivatives have large triplet gap. Since they can more effectively block excitons in a phosphorescent device than existing materials, they may improve luminous efficiency and operation life of the device.
- OLED (Samsung Corning) was subjected to ultrasonic washing sequentially using trichloroethylene, acetone, ethanol and distilled water, and stored in isopropanol for later use.
- the ITO substrate was mounted on a substrate holder of a vacuum deposition apparatus.
- a vacuum deposition apparatus After adding 4,4',4"-tris(N,N-(2-naphthyl)-phenylamino)triphenylamine (2-TNATA) in a cell of the vacuum deposition apparatus, the pressure inside the chamber was reduced to 1O 6 torr. Then, 2-TNATA was evaporated by applying electrical current to the cell to form a hole injection layer having a thickness of 60 nm on the ITO substrate.
- An electroluminescent layer was formed on the hole transport layer as follows. 4,4'-N,N'-dicarbazole-biphenyl (CBP) was added in a cell of a vacuum deposition apparatus as a host material, and Compound D was added in another cell. The two cells were heated such that an electroluminescent layer having a thickness of 30 nm was formed on the hole transport layer at 2 to 5 wt% based on Compound D.
- CBP 4,4'-N,N'-dicarbazole-biphenyl
- Each OLED electroluminescent used in the OLED device had been purified by vacuum sublimation at 10 6 torr.
- a hole injection layer was formed using 2-TNATA in the same manner as Example 1. Then, after adding N,N'-bis( ⁇ -naphthyl)-N, ⁇ /'-diphenyl-4,4'-diamine (NPB) in another cell of the vacuum deposition apparatus, NPBwas evaporated by applying electrical current to the cell to form a hole transport layer having a thickness of 20 nm on the hole injection layer.
- NPB N,N'-bis( ⁇ -naphthyl)-N, ⁇ /'-diphenyl-4,4'-diamine
- Example 2 Luminous efficiency of the OLED devices manufactured in Example 1 and Comparative Example 1 was measured at 1,000 cd/m 2 . The result is given in Table 2.
- An ITO substrate was mounted on a substrate holder of a vacuum deposition apparatus in the same manner as Example 1. After adding Compound 12 in a cell of the vacuum deposition apparatus, the pressure inside the chamber was reduced to 10 6 torr. Then, Compound 12 was evaporated by applying electrical current to the cell to form a hole injection layer having a thickness of 60 nm on the ITO substrate.
- NPB N,N'-bis( ⁇ -naphthyl)-N,N'-diphenyl-4,4'-diamine
Abstract
Description
Claims (9)
- An organic electroluminescent compound represented by Chemical Formula 1:[Chemical Formula 1]whereinring A and ring B independently represent a monocyclic or polycyclic aromatic ring, a monocyclic or polycyclic hetero aromatic ring, a 5- or 6-membered hetero aromatic ring fused with an aromatic ring or a monocyclic or polycyclic aromatic ring fused with a 5- or 6-membered hetero aromatic ring, excluding the case where the ring A and the ring B are monocyclic aromatic rings at the same time and the substituents R4 and R5 are independently hydrogen, (C1-C60)alkyl, (C1-C60)alkoxy or (C6-C60)aryl;L1 represents (C6-C60)arylene with or without substituent(s), (C3-C60)heteroarylene with or without substituent(s), (C3-C60)alkenylene with or without substituent(s) or (C3-C60)alkynylene with or without substituent(s);Ar1 represents (C1-C60)alkyl with or without substituent(s), (C6-C60)aryl with or without substituent(s), (C3-C60)heteroaryl with or without substituent(s), heterocycloalkyl with or without substituent(s), (C3-C60)cycloalkyl with or without substituent(s), adamantyl with or without substituent(s), (C7-C60)bicycloalkyl with or without substituent(s), (C3-C60)alkenyl with or without substituent(s) or (C3-C60)alkynyl with or without substituent(s);R1, R2, R3, R4, R5, R6 and R7 independently represent hydrogen, deuterium, halogen, (C1-C60)alkyl with or without substituent(s), (C6-C60)aryl with or without substituent(s), (C3-C60)heteroaryl with or without substituent(s), 5- or 6-membered heterocycloalkyl containing one or more heteroatom(s) selected from N, O and S with or without substituent(s), (C3-C60)cycloalkyl with or without substituent(s), tri(C1-C60)alkylsilyl with or without substituent(s), di(C1-C60)alkyl(C6-C60)arylsilyl with or without substituent(s), tri(C6-C60)arylsilyl with or without substituent(s), adamantyl with or without substituent(s), (C7-C60)bicycloalkyl with or without substituent(s), cyano, (C1-C60)alkyloxy with or without substituent(s), (C1-C60)alkylthio with or without substituent(s), (C6-C60)aryloxy with or without substituent(s), (C6-C60)arylthio with or without substituent(s), (C1-C60)alkoxycarbonyl with or without substituent(s), (C1-C60)alkylcarbonyl with or without substituent(s), (C6-C60)arylcarbonyl with or without substituent(s), (C6-C60)aryloxycarbonyl with or without substituent(s), (C1-C60)alkoxycarbonyloxy with or without substituent(s), (C1-C60)alkylcarbonyloxy with or without substituent(s), (C6-C60)arylcarbonyloxy with or without substituent(s), (C6-C60)aryloxycarbonyloxy with or without substituent(s), carboxyl, nitro or hydroxyl, or each of them may be linked to an adjacent substituent via (C3-C60)alkylene or (C3-C60)alkenylene with or without a fused ring to form a fused ring;the substituent substituted or unsubstituted at L1, Ar1, or R1 through R7 is one or more substituent(s) selected from a group consisting of hydrogen, deuterium, halogen, (C1-C60)alkyl, (C6-C60)aryl, (C3-C60)heteroaryl, (C3-C60)cycloalkyl, cyano, (C1-C60)alkyloxy, (C1-C60)alkylthio, (C6-C60)aryloxy, (C6-C60)arylthio, tri(C1-C60)alkylsilyl, di(C1-C60)alkyl(C6-C60)arylsilyl, tri(C6-C60)arylsilyl, NR31R32, PR33R34, BR35R36 and P(=O)R37R38, or it may be linked to an adjacent substituent via (C3-C60)alkylene or (C3-C60)alkenylene with or without a fused ring to form a fused ring; andR31 through R38 independently represent (C1-C60)alkyl, (C3-C60)cycloalkyl, (C6-C60)aryl or (C3-C60)heteroaryl, or each of them may be linked to an adjacent substituent via (C3-C60)alkylene or (C3-C60)alkenylene with or without a fused ring to form a fused ring, and the alkyl, cycloalkyl, aryl or heteroaryl of R31 through R38 may be further substituted by one or more substituent(s) selected from a group consisting of hydrogen, deuterium, halogen, (C1-C60)alkyl, halo(C1-C60)alkyl, (C6-C60)aryl, (C3-C60)heteroaryl with or without (C6-C60)aryl substituent, cyano, carboxyl, nitro and hydroxyl.
- An organic electroluminescent device comprising the organic electroluminescent compound according to any one of claims 1 to 3.
- The organic electroluminescent device according to claim 4, wherein the organic electroluminescent compound is used as a material for hole injection or hole transport.
- The organic electroluminescent device according to claim 4, which comprises a first electrode; a second electrode; and one or more organic layer(s) interposed between the first electrode and the second electrode, wherein the organic layer comprises one or more layer(s) comprising the organic electroluminescent compound represented by Chemical Formula 1 and one or more layer(s) comprising a fluorescent host and a fluorescent dopant or a phosphorescent host and a phosphorescent dopant.
- The organic electroluminescent device according to claim 6, wherein the organic layer further comprises one or more metal(s) or complex(es) selected from a group consisting of organic metals of Group 1, Group 2, 4th period and 5th period transition metals, lanthanide metals and d-transition elements.
- The organic electroluminescent device according to claim 6, wherein the organic layer comprises an electroluminescent layer and a charge generating layer.
- The organic electroluminescent device according to claim 6, which is a white light-emitting organic electroluminescent device wherein the organic layer comprises one or more organic electroluminescent layer(s) emitting blue, red and green light at the same time.
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Also Published As
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TW201105770A (en) | 2011-02-16 |
JP2012521414A (en) | 2012-09-13 |
CN102449106A (en) | 2012-05-09 |
KR20100106014A (en) | 2010-10-01 |
JP5778127B2 (en) | 2015-09-16 |
WO2010110553A3 (en) | 2010-12-09 |
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