KR102578741B1 - Novel compound and organic light emitting device comprising the same - Google Patents
Novel compound and organic light emitting device comprising the same Download PDFInfo
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- KR102578741B1 KR102578741B1 KR1020190128747A KR20190128747A KR102578741B1 KR 102578741 B1 KR102578741 B1 KR 102578741B1 KR 1020190128747 A KR1020190128747 A KR 1020190128747A KR 20190128747 A KR20190128747 A KR 20190128747A KR 102578741 B1 KR102578741 B1 KR 102578741B1
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- 150000004056 anthraquinones Chemical class 0.000 description 1
- RJGDLRCDCYRQOQ-UHFFFAOYSA-N anthrone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3CC2=C1 RJGDLRCDCYRQOQ-UHFFFAOYSA-N 0.000 description 1
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- 125000005165 aryl thioxy group Chemical group 0.000 description 1
- 125000003609 aryl vinyl group Chemical group 0.000 description 1
- 125000004104 aryloxy group Chemical group 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
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- GQVWHWAWLPCBHB-UHFFFAOYSA-L beryllium;benzo[h]quinolin-10-olate Chemical compound [Be+2].C1=CC=NC2=C3C([O-])=CC=CC3=CC=C21.C1=CC=NC2=C3C([O-])=CC=CC3=CC=C21 GQVWHWAWLPCBHB-UHFFFAOYSA-L 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 150000001638 boron Chemical class 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- XOYLJNJLGBYDTH-UHFFFAOYSA-M chlorogallium Chemical compound [Ga]Cl XOYLJNJLGBYDTH-UHFFFAOYSA-M 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 125000002676 chrysenyl group Chemical group C1(=CC=CC=2C3=CC=C4C=CC=CC4=C3C=CC12)* 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000004210 cyclohexylmethyl group Chemical group [H]C([H])(*)C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000004851 cyclopentylmethyl group Chemical group C1(CCCC1)C* 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 150000004826 dibenzofurans Chemical class 0.000 description 1
- IYYZUPMFVPLQIF-ALWQSETLSA-N dibenzothiophene Chemical group C1=CC=CC=2[34S]C3=C(C=21)C=CC=C3 IYYZUPMFVPLQIF-ALWQSETLSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- YLQWCDOCJODRMT-UHFFFAOYSA-N fluoren-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C2=C1 YLQWCDOCJODRMT-UHFFFAOYSA-N 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001072 heteroaryl group Chemical group 0.000 description 1
- 125000005549 heteroarylene group Chemical group 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- QWXYZCJEXYQNEI-OSZHWHEXSA-N intermediate I Chemical compound COC(=O)[C@@]1(C=O)[C@H]2CC=[N+](C\C2=C\C)CCc2c1[nH]c1ccccc21 QWXYZCJEXYQNEI-OSZHWHEXSA-N 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 150000002503 iridium Chemical class 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000002183 isoquinolinyl group Chemical group C1(=NC=CC2=CC=CC=C12)* 0.000 description 1
- 125000000842 isoxazolyl group Chemical group 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- XNUVVHVFAAQPQY-UHFFFAOYSA-L manganese(2+) quinolin-8-olate Chemical compound N1=CC=CC2=CC=CC(=C12)[O-].[Mn+2].N1=CC=CC2=CC=CC(=C12)[O-] XNUVVHVFAAQPQY-UHFFFAOYSA-L 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 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 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 239000007773 negative electrode material Substances 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
- 125000002560 nitrile group Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl 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])[H] 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical group [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 229960003540 oxyquinoline Drugs 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 150000002964 pentacenes Chemical class 0.000 description 1
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- FVDOBFPYBSDRKH-UHFFFAOYSA-N perylene-3,4,9,10-tetracarboxylic acid Chemical compound C=12C3=CC=C(C(O)=O)C2=C(C(O)=O)C=CC=1C1=CC=C(C(O)=O)C2=C1C3=CC=C2C(=O)O FVDOBFPYBSDRKH-UHFFFAOYSA-N 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 150000002987 phenanthrenes Chemical class 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 125000001484 phenothiazinyl group Chemical group C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- XPPWLXNXHSNMKC-UHFFFAOYSA-N phenylboron Chemical group [B]C1=CC=CC=C1 XPPWLXNXHSNMKC-UHFFFAOYSA-N 0.000 description 1
- 125000004592 phthalazinyl group Chemical group C1(=NN=CC2=CC=CC=C12)* 0.000 description 1
- 150000003057 platinum Chemical class 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 150000004032 porphyrins Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 150000003220 pyrenes Chemical class 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical group C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 229940083082 pyrimidine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 150000003230 pyrimidines Chemical class 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
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- JLBRGNFGBDNNSF-UHFFFAOYSA-N tert-butyl(dimethyl)borane Chemical group CB(C)C(C)(C)C JLBRGNFGBDNNSF-UHFFFAOYSA-N 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- IBBLKSWSCDAPIF-UHFFFAOYSA-N thiopyran Chemical compound S1C=CC=C=C1 IBBLKSWSCDAPIF-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- KWQNQSDKCINQQP-UHFFFAOYSA-K tri(quinolin-8-yloxy)gallane Chemical compound C1=CN=C2C(O[Ga](OC=3C4=NC=CC=C4C=CC=3)OC=3C4=NC=CC=C4C=CC=3)=CC=CC2=C1 KWQNQSDKCINQQP-UHFFFAOYSA-K 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- LALRXNPLTWZJIJ-UHFFFAOYSA-N triethylborane Chemical group CCB(CC)CC LALRXNPLTWZJIJ-UHFFFAOYSA-N 0.000 description 1
- WXRGABKACDFXMG-UHFFFAOYSA-N trimethylborane Chemical group CB(C)C WXRGABKACDFXMG-UHFFFAOYSA-N 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- MXSVLWZRHLXFKH-UHFFFAOYSA-N triphenylborane Chemical group C1=CC=CC=C1B(C=1C=CC=CC=1)C1=CC=CC=C1 MXSVLWZRHLXFKH-UHFFFAOYSA-N 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 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
- HTPBWAPZAJWXKY-UHFFFAOYSA-L zinc;quinolin-8-olate Chemical compound [Zn+2].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 HTPBWAPZAJWXKY-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- 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
- C07D409/04—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 directly linked by a ring-member-to-ring-member bond
-
- 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
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
-
- 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
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
본 발명은 신규한 화합물 및 이를 이용한 유기 발광 소자를 제공한다. The present invention provides a novel compound and an organic light-emitting device using the same.
Description
본 발명은 신규한 화합물 및 이를 포함하는 유기 발광 소자에 관한 것이다. The present invention relates to novel compounds and organic light-emitting devices containing them.
일반적으로 유기 발광 현상이란 유기 물질을 이용하여 전기에너지를 빛에너지로 전환시켜주는 현상을 말한다. 유기 발광 현상을 이용하는 유기 발광 소자는 넓은 시야각, 우수한 콘트라스트, 빠른 응답 시간을 가지며, 휘도, 구동 전압 및 응답 속도 특성이 우수하여 많은 연구가 진행되고 있다. In general, organic luminescence refers to a phenomenon that converts electrical energy into light energy using organic materials. Organic light-emitting devices using the organic light-emitting phenomenon have a wide viewing angle, excellent contrast, fast response time, and excellent luminance, driving voltage, and response speed characteristics, so much research is being conducted.
유기 발광 소자는 일반적으로 양극과 음극 및 상기 양극과 음극 사이에 유기물 층을 포함하는 구조를 가진다. 상기 유기물 층은 유기 발광 소자의 효율과 안정성을 높이기 위하여 각기 다른 물질로 구성된 다층의 구조로 이루어진 경우가 많으며, 예컨대 정공주입층, 정공수송층, 발광층, 전자수송층, 전자주입층 등으로 이루어질 수 있다. 이러한 유기 발광 소자의 구조에서 두 전극 사이에 전압을 걸어주게 되면 양극에서는 정공이, 음극에서는 전자가 유기물층에 주입되게 되고, 주입된 정공과 전자가 만났을 때 엑시톤(exciton)이 형성되며, 이 엑시톤이 다시 바닥상태로 떨어질 때 빛이 나게 된다. Organic light emitting devices generally have a structure including an anode, a cathode, and an organic layer between the anode and the cathode. The organic material layer is often composed of a multi-layer structure made of different materials to increase the efficiency and stability of the organic light-emitting device, and may be composed of, for example, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer. In the structure of this organic light-emitting device, when a voltage is applied between the two electrodes, holes are injected from the anode and electrons from the cathode into the organic material layer. When the injected holes and electrons meet, an exciton is formed, and this exciton is When it falls back to the ground state, it glows.
상기와 같은 유기 발광 소자에 사용되는 유기물에 대하여 새로운 재료의 개발이 지속적으로 요구되고 있다.The development of new materials for organic materials used in organic light-emitting devices as described above is continuously required.
본 발명은 신규한 화합물 및 이를 포함하는 유기 발광 소자에 관한 것이다. The present invention relates to novel compounds and organic light-emitting devices containing them.
본 발명은 하기 화학식 1로 표시되는 화합물을 제공한다:The present invention provides a compound represented by the following formula (1):
[화학식 1][Formula 1]
상기 화학식 1에서, In Formula 1,
A는 인접한 두 개의 오각 고리와 융합된 벤젠 고리이고,A is a benzene ring fused with two adjacent pentagonal rings,
X는 N, 또는 CH이고, 단 X 중 적어도 하나는 N이고,X is N, or CH, provided that at least one of X is N,
L은 치환 또는 비치환된 C6-60 아릴렌이고, L is substituted or unsubstituted C 6-60 arylene,
Ar1 및 Ar2는 각각 독립적으로 치환 또는 비치환된 C6-60 아릴; 또는 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상을 포함하는 C2-60 헤테로아릴이고, Ar 1 and Ar 2 are each independently substituted or unsubstituted C 6-60 aryl; or C 2-60 heteroaryl containing at least one selected from the group consisting of substituted or unsubstituted N, O and S,
Ar3은 비페닐릴, 디메틸플루오레닐, 디페닐플루오레닐, 디벤조퓨라닐, 또는 디벤조티오페닐이고, Ar 3 is biphenylyl, dimethylfluorenyl, diphenylfluorenyl, dibenzofuranyl, or dibenzothiophenyl,
R은 수소, 중수소, 치환 또는 비치환된 C6-60 아릴; 또는 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상을 포함하는 C2-60 헤테로아릴이고, R is hydrogen, deuterium, substituted or unsubstituted C 6-60 aryl; or C 2-60 heteroaryl containing at least one selected from the group consisting of substituted or unsubstituted N, O and S,
n은 1 내지 10의 정수이고, n is an integer from 1 to 10,
단, Ar1, Ar2 및 Ar3 중 적어도 하나는 1개 이상의 중수소로 치환된다. However, at least one of Ar 1 , Ar 2 and Ar 3 is substituted with one or more deuterium.
또한, 본 발명은 제1 전극; 상기 제1 전극과 대향하여 구비된 제2 전극; 및 상기 제1 전극과 상기 제2 전극 사이에 구비된 1층 이상의 유기물 층을 포함하는 유기 발광 소자로서, 상기 유기물층 중 1층 이상은 상기 화학식 1로 표시되는 화합물을 포함하는, 유기 발광 소자를 제공한다.In addition, the present invention includes a first electrode; a second electrode provided opposite to the first electrode; and an organic light-emitting device comprising at least one organic material layer provided between the first electrode and the second electrode, wherein at least one layer of the organic material layer includes a compound represented by Formula 1. do.
상술한 화학식 1로 표시되는 화합물은 유기 발광 소자의 유기물 층의 재료로서 사용될 수 있으며, 유기 발광 소자에서 효율의 향상, 낮은 구동전압 및/또는 수명 특성을 향상시킬 수 있다. 특히, 상술한 화학식 1로 표시되는 화합물은 정공주입, 정공수송, 정공주입 및 수송, 전자억제, 발광, 전자수송, 또는 전자주입 재료로 사용될 수 있다.The compound represented by the above-mentioned formula 1 can be used as a material for the organic layer of an organic light-emitting device, and can improve efficiency, low driving voltage, and/or lifespan characteristics of the organic light-emitting device. In particular, the compound represented by the above-mentioned formula 1 can be used as a hole injection, hole transport, hole injection and transport, electron suppression, light emission, electron transport, or electron injection material.
도 1은 기판(1), 양극(2), 발광층(3), 음극(4)으로 이루어진 유기 발광 소자의 예를 도시한 것이다.
도 2는 기판 (1), 양극(2), 정공주입층(5), 정공수송층(6), 발광층(7), 전자수송층(8) 및 음극(4)로 이루어진 유기 발광 소자의 예를 도시한 것이다.Figure 1 shows an example of an organic light emitting device consisting of a substrate 1, an anode 2, a light emitting layer 3, and a cathode 4.
Figure 2 shows an example of an organic light emitting device consisting of a substrate (1), an anode (2), a hole injection layer (5), a hole transport layer (6), a light emitting layer (7), an electron transport layer (8), and a cathode (4). It was done.
이하, 본 발명의 이해를 돕기 위하여 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail to aid understanding.
본 명세서에서, 
본 명세서에서 "치환 또는 비치환된" 이라는 용어는 중수소; 할로겐기; 니트릴기; 니트로기; 히드록시기; 카보닐기; 에스테르기; 이미드기; 아미노기; 포스핀옥사이드기; 알콕시기; 아릴옥시기; 알킬티옥시기; 아릴티옥시기; 알킬술폭시기; 아릴술폭시기; 실릴기; 붕소기; 알킬기; 사이클로알킬기; 알케닐기; 아릴기; 아르알킬기; 아르알케닐기; 알킬아릴기; 알킬아민기; 아랄킬아민기; 헤테로아릴아민기; 아릴아민기; 아릴포스핀기; 또는 N, O 및 S 원자 중 1개 이상을 포함하는 헤테로고리기로 이루어진 군에서 선택된 1개 이상의 치환기로 치환 또는 비치환되거나, 상기 예시된 치환기 중 2 이상의 치환기가 연결된 치환 또는 비치환된 것을 의미한다. 예컨대, "2 이상의 치환기가 연결된 치환기"는 비페닐기일 수 있다. 즉, 비페닐기는 아릴기일 수도 있고, 2개의 페닐기가 연결된 치환기로 해석될 수 있다.As used herein, the term “substituted or unsubstituted” refers to deuterium; halogen group; Nitrile group; nitro group; hydroxyl group; carbonyl group; ester group; imide group; amino group; Phosphine oxide group; Alkoxy group; Aryloxy group; Alkylthioxy group; Arylthioxy group; Alkyl sulphoxy group; Aryl sulfoxy group; silyl group; boron group; Alkyl group; Cycloalkyl group; alkenyl group; Aryl group; Aralkyl group; Aralkenyl group; Alkylaryl group; Alkylamine group; Aralkylamine group; heteroarylamine group; Arylamine group; Arylphosphine group; or substituted or unsubstituted with one or more substituents selected from the group consisting of heterocyclic groups containing one or more of N, O and S atoms, or substituted or unsubstituted with two or more of the above-exemplified substituents linked. . For example, “a substituent group in which two or more substituents are connected” may be a biphenyl group. That is, the biphenyl group may be an aryl group, or it may be interpreted as a substituent in which two phenyl groups are connected.
본 명세서에서 카보닐기의 탄소수는 특별히 한정되지 않으나, 탄소수 1 내지 40인 것이 바람직하다. 구체적으로 하기와 같은 구조의 화합물이 될 수 있으나, 이에 한정되는 것은 아니다.In this specification, the carbon number of the carbonyl group is not particularly limited, but is preferably 1 to 40 carbon atoms. Specifically, it may be a compound with the following structure, but is not limited thereto.
본 명세서에 있어서, 에스테르기는 에스테르기의 산소가 탄소수 1 내지 25의 직쇄, 분지쇄 또는 고리쇄 알킬기 또는 탄소수 6 내지 25의 아릴기로 치환될 수 있다. 구체적으로, 하기 구조식의 화합물이 될 수 있으나, 이에 한정되는 것은 아니다.In the present specification, the oxygen of the ester group may be substituted with a straight-chain, branched-chain, or ring-chain alkyl group having 1 to 25 carbon atoms or an aryl group having 6 to 25 carbon atoms. Specifically, it may be a compound of the following structural formula, but is not limited thereto.
본 명세서에 있어서, 이미드기의 탄소수는 특별히 한정되지 않으나, 탄소수 1 내지 25인 것이 바람직하다. 구체적으로 하기와 같은 구조의 화합물이 될 수 있으나, 이에 한정되는 것은 아니다.In this specification, the carbon number of the imide group is not particularly limited, but is preferably 1 to 25 carbon atoms. Specifically, it may be a compound with the following structure, but is not limited thereto.
본 명세서에 있어서, 실릴기는 구체적으로 트리메틸실릴기, 트리에틸실릴기, t-부틸디메틸실릴기, 비닐디메틸실릴기, 프로필디메틸실릴기, 트리페닐실릴기, 디페닐실릴기, 페닐실릴기 등이 있으나 이에 한정되지 않는다. In the present specification, the silyl group specifically includes trimethylsilyl group, triethylsilyl group, t-butyldimethylsilyl group, vinyldimethylsilyl group, propyldimethylsilyl group, triphenylsilyl group, diphenylsilyl group, phenylsilyl group, etc. However, it is not limited to this.
본 명세서에 있어서, 붕소기는 구체적으로 트리메틸붕소기, 트리에틸붕소기, t-부틸디메틸붕소기, 트리페닐붕소기, 페닐붕소기 등이 있으나 이에 한정되지 않는다.In the present specification, the boron group specifically includes trimethyl boron group, triethyl boron group, t-butyldimethyl boron group, triphenyl boron group, and phenyl boron group, but is not limited thereto.
본 명세서에 있어서, 할로겐기의 예로는 불소, 염소, 브롬 또는 요오드가 있다.In this specification, examples of halogen groups include fluorine, chlorine, bromine, or iodine.
본 명세서에 있어서, 상기 알킬기는 직쇄 또는 분지쇄일 수 있고, 탄소수는 특별히 한정되지 않으나 1 내지 40인 것이 바람직하다. 일 실시상태에 따르면, 상기 알킬기의 탄소수는 1 내지 20이다. 또 하나의 실시상태에 따르면, 상기 알킬기의 탄소수는 1 내지 10이다. 또 하나의 실시상태에 따르면, 상기 알킬기의 탄소수는 1 내지 6이다. 알킬기의 구체적인 예로는 메틸, 에틸, 프로필, n-프로필, 이소프로필, 부틸, n-부틸, 이소부틸, tert-부틸, sec-부틸, 1-메틸-부틸, 1-에틸-부틸, 펜틸, n-펜틸, 이소펜틸, 네오펜틸, tert-펜틸, 헥실, n-헥실, 1-메틸펜틸, 2-메틸펜틸, 4-메틸-2-펜틸, 3,3-디메틸부틸, 2-에틸부틸, 헵틸, n-헵틸, 1-메틸헥실, 사이클로펜틸메틸,사이클로헥틸메틸, 옥틸, n-옥틸, tert-옥틸, 1-메틸헵틸, 2-에틸헥실, 2-프로필펜틸, n-노닐, 2,2-디메틸헵틸, 1-에틸-프로필, 1,1-디메틸-프로필, 이소헥실, 2-메틸펜틸, 4-메틸헥실, 5-메틸헥실 등이 있으나, 이들에 한정되지 않는다.In the present specification, the alkyl group may be straight chain or branched, and the number of carbon atoms is not particularly limited, but is preferably 1 to 40. According to one embodiment, the carbon number of the alkyl group is 1 to 20. According to another embodiment, the carbon number of the alkyl group is 1 to 10. According to another embodiment, the carbon number of the alkyl group is 1 to 6. Specific examples of alkyl groups include methyl, ethyl, propyl, n-propyl, isopropyl, butyl, n-butyl, isobutyl, tert-butyl, sec-butyl, 1-methyl-butyl, 1-ethyl-butyl, pentyl, n. -pentyl, isopentyl, neopentyl, tert-pentyl, hexyl, n-hexyl, 1-methylpentyl, 2-methylpentyl, 4-methyl-2-pentyl, 3,3-dimethylbutyl, 2-ethylbutyl, heptyl , n-heptyl, 1-methylhexyl, cyclopentylmethyl, cyclohexylmethyl, octyl, n-octyl, tert-octyl, 1-methylheptyl, 2-ethylhexyl, 2-propylpentyl, n-nonyl, 2,2 -Dimethylheptyl, 1-ethyl-propyl, 1,1-dimethyl-propyl, isohexyl, 2-methylpentyl, 4-methylhexyl, 5-methylhexyl, etc., but is not limited to these.
본 명세서에 있어서, 상기 알케닐기는 직쇄 또는 분지쇄일 수 있고, 탄소수는 특별히 한정되지 않으나, 2 내지 40인 것이 바람직하다. 일 실시상태에 따르면, 상기 알케닐기의 탄소수는 2 내지 20이다. 또 하나의 실시상태에 따르면, 상기 알케닐기의 탄소수는 2 내지 10이다. 또 하나의 실시상태에 따르면, 상기 알케닐기의 탄소수는 2 내지 6이다. 구체적인 예로는 비닐, 1-프로페닐, 이소프로페닐, 1-부테닐, 2-부테닐, 3-부테닐, 1-펜테닐, 2-펜테닐, 3-펜테닐, 3-메틸-1-부테닐, 1,3-부타디에닐, 알릴, 1-페닐비닐-1-일, 2-페닐비닐-1-일, 2,2-디페닐비닐-1-일, 2-페닐-2-(나프틸-1-일)비닐-1-일, 2,2-비스(디페닐-1-일)비닐-1-일, 스틸베닐기, 스티레닐기 등이 있으나 이들에 한정되지 않는다.In the present specification, the alkenyl group may be straight chain or branched, and the number of carbon atoms is not particularly limited, but is preferably 2 to 40. According to one embodiment, the alkenyl group has 2 to 20 carbon atoms. According to another embodiment, the alkenyl group has 2 to 10 carbon atoms. According to another embodiment, the alkenyl group has 2 to 6 carbon atoms. Specific examples include vinyl, 1-propenyl, isopropenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 3-methyl-1- Butenyl, 1,3-butadienyl, allyl, 1-phenylvinyl-1-yl, 2-phenylvinyl-1-yl, 2,2-diphenylvinyl-1-yl, 2-phenyl-2-( Naphthyl-1-yl) vinyl-1-yl, 2,2-bis (diphenyl-1-yl) vinyl-1-yl, stilbenyl group, styrenyl group, etc., but are not limited to these.
본 명세서에 있어서, 사이클로알킬기는 특별히 한정되지 않으나, 탄소수 3 내지 60인 것이 바람직하며, 일 실시상태에 따르면, 상기 사이클로알킬기의 탄소수는 3 내지 30이다. 또 하나의 실시상태에 따르면, 상기 사이클로알킬기의 탄소수는 3 내지 20이다. 또 하나의 실시상태에 따르면, 상기 사이클로알킬기의 탄소수는 3 내지 6이다. 구체적으로 사이클로프로필, 사이클로부틸, 사이클로펜틸, 3-메틸사이클로펜틸, 2,3-디메틸사이클로펜틸, 사이클로헥실, 3-메틸사이클로헥실, 4-메틸사이클로헥실, 2,3-디메틸사이클로헥실, 3,4,5-트리메틸사이클로헥실, 4-tert-부틸사이클로헥실, 사이클로헵틸, 사이클로옥틸 등이 있으나, 이에 한정되지 않는다.In the present specification, the cycloalkyl group is not particularly limited, but preferably has 3 to 60 carbon atoms, and according to one embodiment, the cycloalkyl group has 3 to 30 carbon atoms. According to another embodiment, the carbon number of the cycloalkyl group is 3 to 20. According to another embodiment, the carbon number of the cycloalkyl group is 3 to 6. Specifically, cyclopropyl, cyclobutyl, cyclopentyl, 3-methylcyclopentyl, 2,3-dimethylcyclopentyl, cyclohexyl, 3-methylcyclohexyl, 4-methylcyclohexyl, 2,3-dimethylcyclohexyl, 3, Examples include, but are not limited to, 4,5-trimethylcyclohexyl, 4-tert-butylcyclohexyl, cycloheptyl, and cyclooctyl.
본 명세서에 있어서, 아릴기는 특별히 한정되지 않으나 탄소수 6 내지 60인 것이 바람직하며, 단환식 아릴기 또는 다환식 아릴기일 수 있다. 일 실시상태에 따르면, 상기 아릴기의 탄소수는 6 내지 30이다. 일 실시상태에 따르면, 상기 아릴기의 탄소수는 6 내지 20이다. 상기 아릴기가 단환식 아릴기로는 페닐기, 바이페닐기, 터페닐기 등이 될 수 있으나, 이에 한정되는 것은 아니다. 상기 다환식 아릴기로는 나프틸기, 안트라세닐기, 페난트릴기, 파이레닐기, 페릴레닐기, 크라이세닐기, 플루오레닐기 등이 될 수 있으나, 이에 한정되는 것은 아니다.In the present specification, the aryl group is not particularly limited, but preferably has 6 to 60 carbon atoms, and may be a monocyclic aryl group or a polycyclic aryl group. According to one embodiment, the aryl group has 6 to 30 carbon atoms. According to one embodiment, the aryl group has 6 to 20 carbon atoms. The aryl group may be a monocyclic aryl group, such as a phenyl group, biphenyl group, or terphenyl group, but is not limited thereto. The polycyclic aryl group may be a naphthyl group, anthracenyl group, phenanthryl group, pyrenyl group, perylenyl group, chrysenyl group, fluorenyl group, etc., but is not limited thereto.
본 명세서에 있어서, 플루오레닐기는 치환될 수 있고, 치환기 2개가 서로 결합하여 스피로 구조를 형성할 수 있다. 상기 플루오레닐기가 치환되는 경우, 
본 명세서에 있어서, 헤테로고리기는 이종 원소로 O, N, Si 및 S 중 1개 이상을 포함하는 헤테로고리기로서, 탄소수는 특별히 한정되지 않으나, 탄소수 2 내지 60인 것이 바람직하다. 헤테로고리기의 예로는 티오펜기, 퓨란기, 피롤기, 이미다졸기, 티아졸기, 옥사졸기, 옥사디아졸기, 트리아졸기, 피리딜기, 비피리딜기, 피리미딜기, 트리아진기, 아크리딜기, 피리다진기, 피라지닐기, 퀴놀리닐기, 퀴나졸린기, 퀴녹살리닐기, 프탈라지닐기, 피리도 피리미디닐기, 피리도 피라지닐기, 피라지노 피라지닐기, 이소퀴놀린기, 인돌기, 카바졸기, 벤조옥사졸기, 벤조이미다졸기, 벤조티아졸기, 벤조카바졸기, 벤조티오펜기, 디벤조티오펜기, 벤조퓨라닐기, 페난쓰롤린기(phenanthroline), 이소옥사졸릴기, 티아디아졸릴기, 페노티아지닐기 및 디벤조퓨라닐기 등이 있으나, 이들에만 한정되는 것은 아니다.In the present specification, the heterocyclic group is a heterocyclic group containing one or more of O, N, Si, and S as a heterogeneous element, and the number of carbon atoms is not particularly limited, but is preferably 2 to 60 carbon atoms. Examples of heterocyclic groups include thiophene group, furan group, pyrrole group, imidazole group, thiazole group, oxazole group, oxadiazole group, triazole group, pyridyl group, bipyridyl group, pyrimidyl group, triazine group, and acridyl group. , pyridazine group, pyrazinyl group, quinolinyl group, quinazoline group, quinoxalinyl group, phthalazinyl group, pyrido pyrimidinyl group, pyrido pyrazinyl group, pyrazino pyrazinyl group, isoquinoline group, indole group , carbazole group, benzooxazole group, benzoimidazole group, benzothiazole group, benzocarbazole group, benzothiophene group, dibenzothiophene group, benzofuranyl group, phenanthroline group, isoxazolyl group, thiadia These include, but are not limited to, a zolyl group, a phenothiazinyl group, and a dibenzofuranyl group.
본 명세서에 있어서, 아르알킬기, 아르알케닐기, 알킬아릴기, 아릴아민기 중의 아릴기는 전술한 아릴기의 예시와 같다. 본 명세서에 있어서, 아르알킬기, 알킬아릴기, 알킬아민기 중 알킬기는 전술한 알킬기의 예시와 같다. 본 명세서에 있어서, 헤테로아릴아민 중 헤테로아릴은 전술한 헤테로고리기에 관한 설명이 적용될 수 있다. 본 명세서에 있어서, 아르알케닐기 중 알케닐기는 전술한 알케닐기의 예시와 같다. 본 명세서에 있어서, 아릴렌은 2가기인 것을 제외하고는 전술한 아릴기에 관한 설명이 적용될 수 있다. 본 명세서에 있어서, 헤테로아릴렌은 2가기인 것을 제외하고는 전술한 헤테로고리기에 관한 설명이 적용될 수 있다. 본 명세서에 있어서, 탄화수소 고리는 1가기가 아니고, 2개의 치환기가 결합하여 형성한 것을 제외하고는 전술한 아릴기 또는 사이클로알킬기에 관한 설명이 적용될 수 있다. 본 명세서에 있어서, 헤테로고리는 1가기가 아니고, 2개의 치환기가 결합하여 형성한 것을 제외하고는 전술한 헤테로고리기에 관한 설명이 적용될 수 있다.In this specification, the aryl group among the aralkyl group, aralkenyl group, alkylaryl group, and arylamine group is the same as the example of the aryl group described above. In this specification, the aralkyl group, alkylaryl group, and alkylamine group are the same as the examples of the alkyl group described above. In the present specification, the description regarding the heterocyclic group described above may be applied to heteroaryl among heteroarylamines. In this specification, the alkenyl group among the aralkenyl groups is the same as the example of the alkenyl group described above. In the present specification, the description of the aryl group described above can be applied, except that arylene is a divalent group. In the present specification, the description of the heterocyclic group described above can be applied, except that heteroarylene is a divalent group. In the present specification, the description of the aryl group or cycloalkyl group described above can be applied, except that the hydrocarbon ring is not monovalent and is formed by combining two substituents. In the present specification, the description of the heterocyclic group described above can be applied, except that the heterocycle is not a monovalent group and is formed by combining two substituents.
바람직하게는, 상기 화학식 1은 A에 따라 하기 화학식 1-1 내지 1-6 중어느 하나로 표시된다:Preferably, Formula 1 is represented by any one of the following Formulas 1-1 to 1-6 according to A:
[화학식 1-1][Formula 1-1]
[화학식 1-2][Formula 1-2]
[화학식 1-3][Formula 1-3]
[화학식 1-4][Formula 1-4]
[화학식 1-5][Formula 1-5]
[화학식 1-6][Formula 1-6]
상기 화학식 1-1 내지 1-6에서, In Formulas 1-1 to 1-6,
X, L, Ar1, Ar2, Ar3, R 및 n은 앞서 정의한 바와 같다.X, L, Ar 1 , Ar 2 , Ar 3 , R and n are as previously defined.
바람직하게는, L은 페닐렌이고, 보다 바람직하게는 1,4-페닐렌, 또는 1,3-페닐렌이다. Preferably, L is phenylene, more preferably 1,4-phenylene, or 1,3-phenylene.
바람직하게는, Ar1 및 Ar2는 각각 독립적으로 페닐, 1 내지 5개의 중수소로 치환된 페닐, 비페닐릴, 또는 1 내지 10개의 중수소로 치환된 비페닐릴이고, 보다 바람직하게는 페닐, 또는 5개의 중수소로 치환된 페닐이다. Preferably, Ar 1 and Ar 2 are each independently phenyl, phenyl substituted with 1 to 5 deuteriums, biphenylyl, or biphenylyl substituted with 1 to 10 deuteriums, more preferably phenyl, or It is phenyl substituted with 5 deuterium atoms.
바람직하게는, Ar3은 하기로 구성되는 군으로부터 선택되는 어느 하나이다:Preferably, Ar 3 is any one selected from the group consisting of:
상기에서, In the above,
Y는 O, S, C(CH3)2, 또는 C(페닐)2이고, Y is O, S, C(CH 3 ) 2 , or C(phenyl) 2 ,
R' 중 하나는 상기 화학식 1에 결합되는 부분이고, 나머지는 수소 또는 중수소이다.One of R' is a portion bonded to Formula 1 above, and the remainder is hydrogen or deuterium.
상기 화학식 1로 표시되는 화합물의 대표적인 예는 다음과 같다:Representative examples of compounds represented by Formula 1 are as follows:
또한, 본 발명은 하기 반응식 1과 같이 상기 화학식 1로 표시되는 화합물의 제조 방법을 제공한다.Additionally, the present invention provides a method for producing a compound represented by Chemical Formula 1 as shown in Scheme 1 below.
[반응식 1][Scheme 1]
상기 반응식 1에서, X'를 제외한 나머지 정의는 앞서 정의한 바와 같으며, X'는 할로겐이고, 바람직하게는 브로모, 또는 클로로이다. 상기 반응은 아민 치환 반응으로서, 팔라듐 촉매와 염기 존재 하에 수행하는 것이 바람직하며, 아민 치환 반응을 위한 반응기는 당업계에 알려진 바에 따라 변경이 가능하다. 상기 제조 방법은 후술할 제조예에서 보다 구체화될 수 있다.In Scheme 1, the remaining definitions except for X' are as defined above, and X' is halogen, preferably bromo or chloro. The above reaction is an amine substitution reaction, and is preferably carried out in the presence of a palladium catalyst and a base, and the reactor for the amine substitution reaction can be changed according to what is known in the art. The manufacturing method may be further detailed in the manufacturing examples described later.
또한, 본 발명은 상기 화학식 1로 표시되는 화합물을 포함하는 유기 발광 소자를 제공한다. 일례로, 본 발명은 제1 전극; 상기 제1 전극과 대향하여 구비된 제2 전극; 및 상기 제1 전극과 상기 제2 전극 사이에 구비된 1층 이상의 유기물 층을 포함하는 유기 발광 소자로서, 상기 유기물층 중 1층 이상은 상기 화학식 1로 표시되는 화합물을 포함하는, 유기 발광 소자를 제공한다. Additionally, the present invention provides an organic light-emitting device containing the compound represented by Formula 1 above. For example, the present invention includes a first electrode; a second electrode provided opposite to the first electrode; and an organic light-emitting device comprising at least one organic material layer provided between the first electrode and the second electrode, wherein at least one layer of the organic material layer includes a compound represented by Formula 1. do.
본 발명의 유기 발광 소자의 유기물 층은 단층 구조로 이루어질 수도 있으나, 2층 이상의 유기물층이 적층된 다층 구조로 이루어질 수 있다. 예컨대, 본 발명의 유기 발광 소자는 유기물 층으로서 정공주입층, 정공수송층, 발광층, 전자수송층, 전자주입층 등을 포함하는 구조를 가질 수 있다. 그러나 유기 발광 소자의 구조는 이에 한정되지 않고 더 적은 수의 유기층을 포함할 수 있다.The organic material layer of the organic light emitting device of the present invention may have a single-layer structure, or may have a multi-layer structure in which two or more organic material layers are stacked. For example, the organic light emitting device of the present invention may have a structure that includes a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, etc. as an organic material layer. However, the structure of the organic light emitting device is not limited to this and may include fewer organic layers.
또한, 상기 유기물 층은 발광층을 포함할 수 있고, 상기 발광층은 상기 화학식 1로 표시되는 화합물을 포함한다. 특히, 본 발명에 따른 화합물은 발광층의 호스트로 사용할 수 있다. Additionally, the organic layer may include a light-emitting layer, and the light-emitting layer includes the compound represented by Chemical Formula 1. In particular, the compound according to the present invention can be used as a host for a light-emitting layer.
바람직하게는, 상기 발광층은 상기 화학식 1로 표시되는 화합물과 함께, 하기 화학식 2로 표시되는 화합물을 추가로 포함한다:Preferably, the light-emitting layer further includes a compound represented by the following formula (2) along with the compound represented by the formula (1):
[화학식 2][Formula 2]
상기 화학식 2에서,In Formula 2,
Ar4 및 Ar5는 각각 독립적으로, 치환 또는 비치환된 C6-60 아릴; 또는 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상을 포함하는 C2-60 헤테로아릴이고,Ar 4 and Ar 5 are each independently substituted or unsubstituted C 6-60 aryl; or C 2-60 heteroaryl containing at least one selected from the group consisting of substituted or unsubstituted N, O and S,
R4 및 R5는 각각 독립적으로, 수소; 중수소; 할로겐; 시아노; 니트로; 아미노; 치환 또는 비치환된 C1-60 알킬; 치환 또는 비치환된 C3-60 사이클로알킬; 치환 또는 비치환된 C2-60 알케닐; 치환 또는 비치환된 C6-60 아릴; 또는 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상을 포함하는 C2-60 헤테로아릴이고,R 4 and R 5 are each independently hydrogen; heavy hydrogen; halogen; cyano; nitro; Amino; Substituted or unsubstituted C 1-60 alkyl; Substituted or unsubstituted C 3-60 cycloalkyl; Substituted or unsubstituted C 2-60 alkenyl; Substituted or unsubstituted C 6-60 aryl; or C 2-60 heteroaryl containing at least one selected from the group consisting of substituted or unsubstituted N, O and S,
a 및 b는 각각 독립적으로, 0 내지 7의 정수이다.a and b are each independently integers from 0 to 7.
바람직하게는, Ar4 및 Ar5는 각각 독립적으로, 페닐, 비페닐릴, 터페닐릴, 나프틸, 디벤조퓨라닐, 디벤조티오페닐, 또는 디메틸플루오레닐이다. Preferably, Ar 4 and Ar 5 are each independently phenyl, biphenylyl, terphenylyl, naphthyl, dibenzofuranyl, dibenzothiophenyl, or dimethylfluorenyl.
바람직하게는, R4 및 R5는 모두 수소이다. Preferably, R 4 and R 5 are both hydrogen.
상기 화학식 2로 표시되는 화합물의 대표적인 예는 하기와 같다:Representative examples of compounds represented by Formula 2 are as follows:
바람직하게는, 상기 발광층 내에서 상기 화학식 1로 표시되는 화합물과 상기 화학식 2로 표시되는 화합물의 중량비는 1:99 내지 99:1, 10:90 내지 90:10, 또는 20:80 내지 80:20이다. Preferably, the weight ratio of the compound represented by Formula 1 and the compound represented by Formula 2 in the light emitting layer is 1:99 to 99:1, 10:90 to 90:10, or 20:80 to 80:20. am.
또한, 상기 유기물 층은 정공주입층, 정공수송층, 또는 전자억제층을 포함할 수 있고, 상기 정공주입층, 정공수송층, 또는 전자억제층은 상기 화학식 1로 표시되는 화합물을 포함한다. Additionally, the organic material layer may include a hole injection layer, a hole transport layer, or an electron blocking layer, and the hole injection layer, a hole transport layer, or an electron blocking layer includes the compound represented by Formula 1.
또한, 상기 전자수송층, 전자주입층, 또는 전자수송 및 전자주입을 동시에 하는 층은 상기 화학식 1로 표시되는 화합물을 포함한다. In addition, the electron transport layer, the electron injection layer, or the layer that simultaneously performs electron transport and electron injection includes the compound represented by Formula 1.
또한, 상기 유기물 층은 발광층 및 전자수송층을 포함하고, 상기 전자수송층은 상기 화학식 1로 표시되는 화합물을 포함할 수 있다. Additionally, the organic layer includes a light-emitting layer and an electron transport layer, and the electron transport layer may include the compound represented by Formula 1.
또한, 본 발명에 따른 유기 발광 소자는, 기판 상에 양극, 1층 이상의 유기물 층 및 음극이 순차적으로 적층된 구조(normal type)의 유기 발광 소자일 수 있다. 또한, 본 발명에 따른 유기 발광 소자는 기판 상에 음극, 1층 이상의 유기물 층 및 양극이 순차적으로 적층된 역방향 구조(inverted type)의 유기 발광 소자일 수 있다. 예컨대, 본 발명의 일실시예에 따른 유기 발광 소자의 구조는 도 1 및 2에 예시되어 있다.Additionally, the organic light emitting device according to the present invention may be a normal type organic light emitting device in which an anode, one or more organic material layers, and a cathode are sequentially stacked on a substrate. Additionally, the organic light emitting device according to the present invention may be an inverted type organic light emitting device in which a cathode, one or more organic layers, and an anode are sequentially stacked on a substrate. For example, the structure of an organic light emitting device according to an embodiment of the present invention is illustrated in FIGS. 1 and 2.
도 1은 기판(1), 양극(2), 발광층(3), 음극(4)으로 이루어진 유기 발광 소자의 예를 도시한 것이다. 이와 같은 구조에 있어서, 상기 화학식 1로 표시되는 화합물은 상기 발광층에 포함될 수 있다. Figure 1 shows an example of an organic light emitting device consisting of a substrate 1, an anode 2, a light emitting layer 3, and a cathode 4. In this structure, the compound represented by Formula 1 may be included in the light-emitting layer.
도 2는 기판 (1), 양극(2), 정공주입층(5), 정공수송층(6), 발광층(7), 전자수송층(8) 및 음극(4)로 이루어진 유기 발광 소자의 예를 도시한 것이다. 이와 같은 구조에 있어서, 상기 화학식 1로 표시되는 화합물은 상기 정공주입층, 정공수송층, 발광층, 전자수송층 중 1층 이상에 포함될 수 있다. Figure 2 shows an example of an organic light emitting device consisting of a substrate (1), an anode (2), a hole injection layer (5), a hole transport layer (6), a light emitting layer (7), an electron transport layer (8), and a cathode (4). It was done. In this structure, the compound represented by Formula 1 may be included in one or more of the hole injection layer, hole transport layer, light emitting layer, and electron transport layer.
본 발명에 따른 유기 발광 소자는, 상기 유기물 층 중 1층 이상이 상기 화학식 1로 표시되는 화합물을 포함하는 것을 제외하고는 당 기술분야에 알려져 있는 재료와 방법으로 제조될 수 있다. 또한, 상기 유기 발광 소자가 복수개의 유기물층을 포함하는 경우, 상기 유기물층은 동일한 물질 또는 다른 물질로 형성될 수 있다. The organic light emitting device according to the present invention can be manufactured using materials and methods known in the art, except that at least one of the organic layers includes the compound represented by Formula 1 above. Additionally, when the organic light emitting device includes a plurality of organic material layers, the organic material layers may be formed of the same material or different materials.
예컨대, 본 발명에 따른 유기 발광 소자는 기판 상에 제1 전극, 유기물층 및 제2 전극을 순차적으로 적층시켜 제조할 수 있다. 이때, 스퍼터링법(sputtering)이나 전자빔 증발법(e-beam evaporation)과 같은 PVD(physical Vapor Deposition)방법을 이용하여, 기판 상에 금속 또는 전도성을 가지는 금속 산화물 또는 이들의 합금을 증착시켜 양극을 형성하고, 그 위에 정공 주입층, 정공 수송층, 발광층 및 전자 수송층을 포함하는 유기물 층을 형성한 후, 그 위에 음극으로 사용할 수 있는 물질을 증착시켜 제조할 수 있다. 이와 같은 방법 외에도, 기판 상에 음극 물질부터 유기물층, 양극 물질을 차례로 증착시켜 유기 발광 소자를 만들 수 있다. For example, the organic light emitting device according to the present invention can be manufactured by sequentially stacking a first electrode, an organic material layer, and a second electrode on a substrate. At this time, an anode is formed by depositing a metal or a conductive metal oxide or an alloy thereof on the substrate using a PVD (physical vapor deposition) method such as sputtering or e-beam evaporation. It can be manufactured by forming an organic material layer including a hole injection layer, a hole transport layer, a light emitting layer, and an electron transport layer thereon, and then depositing a material that can be used as a cathode thereon. In addition to this method, an organic light-emitting device can be made by sequentially depositing a cathode material, an organic material layer, and an anode material on a substrate.
또한, 상기 화학식 1로 표시되는 화합물은 유기 발광 소자의 제조시 진공 증착법 뿐만 아니라 용액 도포법에 의하여 유기물 층으로 형성될 수 있다. 여기서, 용액 도포법이라 함은 스핀 코팅, 딥코팅, 닥터 블레이딩, 잉크젯 프린팅, 스크린 프린팅, 스프레이법, 롤 코팅 등을 의미하지만, 이들만으로 한정되는 것은 아니다.In addition, the compound represented by Formula 1 may be formed as an organic layer by a solution coating method as well as a vacuum deposition method when manufacturing an organic light-emitting device. Here, the solution application method refers to spin coating, dip coating, doctor blading, inkjet printing, screen printing, spraying, roll coating, etc., but is not limited to these.
이와 같은 방법 외에도, 기판 상에 음극 물질로부터 유기물층, 양극 물질을 차례로 증착시켜 유기 발광 소자를 제조할 수 있다(WO 2003/012890). 다만, 제조 방법이 이에 한정되는 것은 아니다. In addition to this method, an organic light-emitting device can be manufactured by sequentially depositing a cathode material, an organic layer, and an anode material on a substrate (WO 2003/012890). However, the manufacturing method is not limited to this.
일례로, 상기 제1 전극은 양극이고, 상기 제2 전극은 음극이거나, 또는 상기 제1 전극은 음극이고, 상기 제2 전극은 양극이다.In one example, the first electrode is an anode and the second electrode is a cathode, or the first electrode is a cathode and the second electrode is an anode.
상기 양극 물질로는 통상 유기물 층으로 정공 주입이 원활할 수 있도록 일함수가 큰 물질이 바람직하다. 상기 양극 물질의 구체적인 예로는 바나듐, 크롬, 구리, 아연, 금과 같은 금속 또는 이들의 합금; 아연 산화물, 인듐 산화물, 인듐주석 산화물(ITO), 인듐아연 산화물(IZO)과 같은 금속 산화물; ZnO:Al 또는 SnO2:Sb와 같은 금속과 산화물의 조합; 폴리(3-메틸티오펜), 폴리[3,4-(에틸렌-1,2-디옥시)티오펜](PEDOT), 폴리피롤 및 폴리아닐린과 같은 전도성 고분자 등이 있으나, 이들에만 한정되는 것은 아니다. The anode material is generally preferably a material with a large work function to facilitate hole injection into the organic layer. Specific examples of the anode material include metals such as vanadium, chromium, copper, zinc, and gold, or alloys thereof; metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), and indium zinc oxide (IZO); Combinations of metals and oxides such as ZnO:Al or SnO 2 :Sb; Conductive polymers such as poly(3-methylthiophene), poly[3,4-(ethylene-1,2-dioxy)thiophene](PEDOT), polypyrrole, and polyaniline are included, but are not limited to these.
상기 음극 물질로는 통상 유기물층으로 전자 주입이 용이하도록 일함수가 작은 물질인 것이 바람직하다. 상기 음극 물질의 구체적인 예로는 마그네슘, 칼슘, 나트륨, 칼륨, 티타늄, 인듐, 이트륨, 리튬, 가돌리늄, 알루미늄, 은, 주석 및 납과 같은 금속 또는 이들의 합금; LiF/Al 또는 LiO2/Al과 같은 다층 구조 물질 등이 있으나, 이들에만 한정되는 것은 아니다. The cathode material is generally preferably a material with a small work function to facilitate electron injection into the organic layer. Specific examples of the negative electrode material include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin and lead, or alloys thereof; There are, but are not limited to, multi-layered materials such as LiF/Al or LiO 2 /Al.
상기 정공주입층은 전극으로부터 정공을 주입하는 층으로, 정공 주입 물질로는 정공을 수송하는 능력을 가져 양극에서의 정공 주입효과, 발광층 또는 발광재료에 대하여 우수한 정공 주입 효과를 갖고, 발광층에서 생성된 여기자의 전자주입층 또는 전자주입재료에의 이동을 방지하며, 또한, 박막 형성 능력이 우수한 화합물이 바람직하다. 정공 주입 물질의 HOMO(highest occupied molecular orbital)가 양극 물질의 일함수와 주변 유기물 층의 HOMO 사이인 것이 바람직하다. 정공 주입 물질의 구체적인 예로는 금속 포피린(porphyrin), 올리고티오펜, 아릴아민 계열의 유기물, 헥사니트릴헥사아자트리페닐렌 계열의 유기물, 퀴나크리돈(quinacridone)계열의 유기물, 페릴렌(perylene) 계열의 유기물, 안트라퀴논 및 폴리아닐린과 폴리티오펜 계열의 전도성 고분자 등이 있으나, 이들에만 한정 되는 것은 아니다. The hole injection layer is a layer that injects holes from an electrode. The hole injection material has the ability to transport holes, has an excellent hole injection effect at the anode, a light-emitting layer or a light-emitting material, and has an excellent hole injection effect on the light-emitting layer or light-emitting material. A compound that prevents movement of excitons to the electron injection layer or electron injection material and has excellent thin film forming ability is preferred. It is preferable that the highest occupied molecular orbital (HOMO) of the hole injection material is between the work function of the anode material and the HOMO of the surrounding organic material layer. Specific examples of hole injection materials include metal porphyrin, oligothiophene, arylamine-based organic substances, hexanitrilehexaazatriphenylene-based organic substances, quinacridone-based organic substances, and perylene-based organic substances. These include organic materials, anthraquinone, polyaniline, and polythiophene-based conductive polymers, but are not limited to these.
상기 정공수송층은 정공주입층으로부터 정공을 수취하여 발광층까지 정공을 수송하는 층으로, 정공 수송 물질로 양극이나 정공 주입층으로부터 정공을 수송받아 발광층으로 옮겨줄 수 있는 물질로 정공에 대한 이동성이 큰 물질이 적합하다. 구체적인 예로는 아릴아민 계열의 유기물, 전도성 고분자, 및 공액 부분과 비공액 부분이 함께 있는 블록 공중합체 등이 있으나, 이들에만 한정되는 것은 아니다. The hole transport layer is a layer that receives holes from the hole injection layer and transports holes to the light-emitting layer. It is a hole transport material that can receive holes from the anode or hole injection layer and transfer them to the light-emitting layer, and is a material with high mobility for holes. This is suitable. Specific examples include arylamine-based organic materials, conductive polymers, and block copolymers with both conjugated and non-conjugated portions, but are not limited to these.
상기 발광층은 호스트 재료 및 도펀트 재료를 포함할 수 있다. 호스트 재료는 축합 방향족환 유도체 또는 헤테로환 함유 화합물 등이 있다. 구체적으로 축합 방향족환 유도체로는 안트라센 유도체, 피렌 유도체, 나프탈렌 유도체, 펜타센 유도체, 페난트렌 화합물, 플루오란텐 화합물 등이 있고, 헤테로환 함유 화합물로는 카바졸 유도체, 디벤조퓨란 유도체, 래더형 퓨란 화합물, 피리미딘 유도체 등이 있으나, 이에 한정되지 않는다. The light emitting layer may include a host material and a dopant material. Host materials include condensed aromatic ring derivatives or heterocyclic ring-containing compounds. Specifically, condensed aromatic ring derivatives include anthracene derivatives, pyrene derivatives, naphthalene derivatives, pentacene derivatives, phenanthrene compounds, and fluoranthene compounds, and heterocycle-containing compounds include carbazole derivatives, dibenzofuran derivatives, and ladder-type compounds. These include, but are not limited to, furan compounds and pyrimidine derivatives.
도펀트 재료로는 방향족 아민 유도체, 스트릴아민 화합물, 붕소 착체, 플루오란텐 화합물, 금속 착체 등이 있다. 구체적으로 방향족 아민 유도체로는 치환 또는 비치환된 아릴아미노기를 갖는 축합 방향족환 유도체로서, 아릴아미노기를 갖는 피렌, 안트라센, 크리센, 페리플란텐 등이 있으며, 스티릴아민 화합물로는 치환 또는 비치환된 아릴아민에 적어도 1개의 아릴비닐기가 치환되어 있는 화합물로, 아릴기, 실릴기, 알킬기, 사이클로알킬기 및 아릴아미노기로 이루어진 군에서 1 또는 2 이상 선택되는 치환기가 치환 또는 비치환된다. 구체적으로 스티릴아민, 스티릴디아민, 스티릴트리아민, 스티릴테트라아민 등이 있으나, 이에 한정되지 않는다. 또한, 금속 착체로는 이리듐 착체, 백금 착체 등이 있으나, 이에 한정되지 않는다.Dopant materials include aromatic amine derivatives, strylamine compounds, boron complexes, fluoranthene compounds, and metal complexes. Specifically, aromatic amine derivatives include condensed aromatic ring derivatives having a substituted or unsubstituted arylamino group, such as pyrene, anthracene, chrysene, and periplanthene, and styrylamine compounds include substituted or unsubstituted arylamino groups. It is a compound in which at least one arylvinyl group is substituted on the arylamine, and is substituted or unsubstituted with one or two or more substituents selected from the group consisting of aryl group, silyl group, alkyl group, cycloalkyl group, and arylamino group. Specifically, styrylamine, styryldiamine, styryltriamine, styryltetraamine, etc. are included, but are not limited thereto. Additionally, metal complexes include, but are not limited to, iridium complexes and platinum complexes.
상기 전자수송층은 전자주입층으로부터 전자를 수취하여 발광층까지 전자를 수송하는 층으로 전자 수송 물질로는 음극으로부터 전자를 잘 주입 받아 발광층으로 옮겨줄 수 있는 물질로서, 전자에 대한 이동성이 큰 물질이 적합하다. 구체적인 예로는 8-히드록시퀴놀린의 Al 착물; Alq3를 포함한 착물; 유기 라디칼 화합물; 히드록시플라본-금속 착물 등이 있으나, 이들에만 한정되는 것은 아니다. 전자 수송층은 종래기술에 따라 사용된 바와 같이 임의의 원하는 캐소드 물질과 함께 사용할 수 있다. 특히, 적절한 캐소드 물질의 예는 낮은 일함수를 가지고 알루미늄층 또는 실버층이 뒤따르는 통상적인 물질이다. 구체적으로 세슘, 바륨, 칼슘, 이테르븀 및 사마륨이고, 각 경우 알루미늄 층 또는 실버층이 뒤따른다.The electron transport layer is a layer that receives electrons from the electron injection layer and transports electrons to the light-emitting layer. The electron transport material is a material that can easily inject electrons from the cathode and transfer them to the light-emitting layer, and a material with high electron mobility is suitable. do. Specific examples include Al complex of 8-hydroxyquinoline; Complex containing Alq 3 ; organic radical compounds; Hydroxyflavone-metal complexes, etc., but are not limited to these. The electron transport layer can be used with any desired cathode material as used according to the prior art. In particular, examples of suitable cathode materials are conventional materials with a low work function followed by an aluminum or silver layer. Specifically, cesium, barium, calcium, ytterbium and samarium, in each case followed by an aluminum layer or a silver layer.
상기 전자주입층은 전극으로부터 전자를 주입하는 층으로, 전자를 수송하는 능력을 갖고, 음극으로부터의 전자 주입 효과, 발광층 또는 발광 재료에 대하여 우수한 전자주입 효과를 가지며, 발광층에서 생성된 여기자의 정공주입층에의 이동을 방지하고, 또한, 박막형성능력이 우수한 화합물이 바람직하다. 구체적으로는 플루오레논, 안트라퀴노다이메탄, 다이페노퀴논, 티오피란 다이옥사이드, 옥사졸, 옥사다이아졸, 트리아졸, 이미다졸, 페릴렌테트라카복실산, 프레오레닐리덴 메탄, 안트론 등과 그들의 유도체, 금속 착체 화합물 및 질소 함유 5원환 유도체 등이 있으나, 이에 한정되지 않는다. The electron injection layer is a layer that injects electrons from the electrode, has the ability to transport electrons, has an excellent electron injection effect from the cathode, a light-emitting layer or a light-emitting material, and hole injection of excitons generated in the light-emitting layer. A compound that prevents movement to the layer and has excellent thin film forming ability is preferred. Specifically, fluorenone, anthraquinodimethane, diphenoquinone, thiopyran dioxide, oxazole, oxadiazole, triazole, imidazole, perylenetetracarboxylic acid, preorenylidene methane, anthrone, etc. and their derivatives, metals. These include, but are not limited to, complex compounds and nitrogen-containing five-membered ring derivatives.
상기 금속 착체 화합물로서는 8-하이드록시퀴놀리나토 리튬, 비스(8-하이드록시퀴놀리나토)아연, 비스(8-하이드록시퀴놀리나토)구리, 비스(8-하이드록시퀴놀리나토)망간, 트리스(8-하이드록시퀴놀리나토)알루미늄, 트리스(2-메틸-8-하이드록시퀴놀리나토)알루미늄, 트리스(8-하이드록시퀴놀리나토)갈륨, 비스(10-하이드록시벤조[h]퀴놀리나토)베릴륨, 비스(10-하이드록시벤조[h]퀴놀리나토)아연, 비스(2-메틸-8-퀴놀리나토)클로로갈륨, 비스(2-메틸-8-퀴놀리나토)(o-크레졸라토)갈륨, 비스(2-메틸-8-퀴놀리나토)(1-나프톨라토)알루미늄, 비스(2-메틸-8-퀴놀리나토)(2-나프톨라토)갈륨 등이 있으나, 이에 한정되지 않는다.Examples of the metal complex compounds include 8-hydroxyquinolinato lithium, bis(8-hydroxyquinolinato)zinc, bis(8-hydroxyquinolinato)copper, bis(8-hydroxyquinolinato)manganese, Tris(8-hydroxyquinolinato)aluminum, Tris(2-methyl-8-hydroxyquinolinato)aluminum, Tris(8-hydroxyquinolinato)gallium, bis(10-hydroxybenzo[h] Quinolinato)beryllium, bis(10-hydroxybenzo[h]quinolinato)zinc, bis(2-methyl-8-quinolinato)chlorogallium, bis(2-methyl-8-quinolinato)( o-cresolato) gallium, bis(2-methyl-8-quinolinato)(1-naphtolato) aluminum, bis(2-methyl-8-quinolinato)(2-naphtolato) gallium, etc. It is not limited to this.
본 발명에 따른 유기 발광 소자는 사용되는 재료에 따라 전면 발광형, 후면 발광형 또는 양면 발광형일 수 있다.The organic light emitting device according to the present invention may be a front emitting type, a back emitting type, or a double-sided emitting type depending on the material used.
또한, 상기 화학식 1로 표시되는 화합물은 유기 발광 소자 외에도 유기 태양 전지 또는 유기 트랜지스터에 포함될 수 있다.Additionally, the compound represented by Formula 1 may be included in organic solar cells or organic transistors in addition to organic light-emitting devices.
상기 화학식 1로 표시되는 화합물 및 이를 포함하는 유기 발광 소자의 제조는 이하 실시예에서 구체적으로 설명한다. 그러나 하기 실시예는 본 발명을 예시하기 위한 것이며, 본 발명의 범위가 이들에 의하여 한정되는 것은 아니다.The preparation of the compound represented by Formula 1 and an organic light-emitting device containing the same will be described in detail in the following Examples. However, the following examples are for illustrating the present invention, and the scope of the present invention is not limited thereto.
[실시예][Example]
실시예 1: 화합물 1의 제조Example 1: Preparation of Compound 1
단계 1) 중간체 A의 제조Step 1) Preparation of Intermediate A
플라스크에 11,12-디하이드로인돌로[2,3-a]카바졸(15.0 g, 58.5 mmol), 4-브로모-1,1'-비페닐-2',3',4',5',6'-d5(15.3 g, 64.4 mmol), 비스(트리-터트-부틸포스핀)팔라듐(0)(0.6 g, 1.2 mmol), 소디움 터트-부톡사이드(8.4 g, 87.8 mmol), 및 톨루엔(450 ml)을 넣은 후, 아르곤 분위기 환류 조건 하에서 8시간 동안 교반하였다. 반응이 종료되면 상온으로 냉각한 후, 물을 넣고 반응액을 분액 깔대기에 옮겨 추출하였다. 추출액을 MgSO4로 건조 및 농축하고, 시료를 실리카 겔 컬럼 크로마토그래피로 정제하여 중간체 A(15.7 g, 수율 65%)를 수득하였다. 11,12-dihydroindolo[2,3-a]carbazole (15.0 g, 58.5 mmol), 4-bromo-1,1'-biphenyl-2',3',4',5 in a flask. ',6'-d5 (15.3 g, 64.4 mmol), bis(tri-tert-butylphosphine)palladium(0) (0.6 g, 1.2 mmol), sodium tert-butoxide (8.4 g, 87.8 mmol), and Toluene (450 ml) was added and stirred for 8 hours under reflux conditions in an argon atmosphere. When the reaction was completed, it was cooled to room temperature, water was added, and the reaction solution was transferred to a separatory funnel and extracted. The extract was dried and concentrated with MgSO 4 , and the sample was purified by silica gel column chromatography to obtain Intermediate A (15.7 g, yield 65%).
MS: [M+H]+= 414MS: [M+H] + = 414
단계 2) 화합물 1의 제조Step 2) Preparation of Compound 1
플라스크에 중간체 A(15.0 g, 36.3 mmol), 중간체 a(15.5 g, 39.9 mmol), 비스(트리-터트-부틸포스핀)팔라듐(0)(0.4 g, 0.7 mmol), 소디움 터트-부톡사이드(5.2 g, 54.4 mmol), 및 자일렌(450 ml)을 넣은 후, 아르곤 분위기 환류 조건 하에서 8시간 동안 교반하였다. 반응이 종료되면 상온으로 냉각한 후, 물을 넣고 반응액을 분액 깔대기에 옮겨 추출하였다. 추출액을 MgSO4로 건조 및 농축하고, 시료를 실리카 겔 컬럼 크로마토그래피로 정제한 후, 승화 정제를 통해 화합물 1(8.6 g, 수율 33%)을 수득하였다.In a flask, intermediate A (15.0 g, 36.3 mmol), intermediate a (15.5 g, 39.9 mmol), bis(tri-tert-butylphosphine)palladium(0) (0.4 g, 0.7 mmol), and sodium tert-butoxide ( 5.2 g, 54.4 mmol), and xylene (450 ml) were added, and then stirred for 8 hours under reflux conditions in an argon atmosphere. When the reaction was completed, it was cooled to room temperature, water was added, and the reaction solution was transferred to a separatory funnel and extracted. The extract was dried and concentrated with MgSO 4 , the sample was purified by silica gel column chromatography, and then compound 1 (8.6 g, yield 33%) was obtained through sublimation purification.
MS: [M+H]+= 721MS: [M+H] + = 721
실시예 2: 화합물 2의 제조Example 2: Preparation of Compound 2
실시예 1에서, 4-브로모-1,1'-비페닐-2',3',4',5',6'-d5을 3-브로모-1,1'-비페닐로 변경하여 사용하여 중간체 B를 제조하고, 중간체 a를 중간체 b로 변경하여 사용한 것을 제외하고는 화합물 1의 제조 방법과 동일한 제조 방법으로 화합물 2를 제조하였다. In Example 1, 4-bromo-1,1'-biphenyl-2',3',4',5',6'-d5 was changed to 3-bromo-1,1'-biphenyl Intermediate B was prepared, and Compound 2 was prepared using the same method as that of Compound 1, except that Intermediate a was changed to Intermediate b.
MS: [M+H]+= 721MS: [M+H] + = 721
실시예 3: 화합물 3의 제조Example 3: Preparation of Compound 3
실시예 1에서, 4-브로모-1,1'-비페닐-2',3',4',5',6'-d5을 2-브로모-9,9-디메틸-9H-플루오렌으로 변경하여 사용하여 중간체 C를 제조하고, 중간체 a를 중간체 c로 변경하여 사용한 것을 제외하고는 화합물 1의 제조 방법과 동일한 제조 방법으로 화합물 3을 제조하였다. In Example 1, 4-bromo-1,1'-biphenyl-2',3',4',5',6'-d5 was reacted with 2-bromo-9,9-dimethyl-9H-fluorene. Intermediate C was prepared by changing to , and Compound 3 was prepared by the same manufacturing method as that of Compound 1, except that Intermediate a was changed to Intermediate c.
MS: [M+H]+= 766MS: [M+H] + = 766
실시예 4: 화합물 4의 제조Example 4: Preparation of Compound 4
실시예 1에서, 4-브로모-1,1'-비페닐-2',3',4',5',6'-d5을 2-브로모디벤조[b,d]퓨란으로 변경하여 사용하여 중간체 D를 제조하고, 중간체 a를 중간체 c로 변경하여 사용한 것을 제외하고는 화합물 1의 제조 방법과 동일한 제조 방법으로 화합물 4를 제조하였다. In Example 1, 4-bromo-1,1'-biphenyl-2',3',4',5',6'-d5 was used by changing it to 2-bromodibenzo[b,d]furan. Intermediate D was prepared, and Compound 4 was prepared by the same method as that of Compound 1, except that Intermediate a was changed to Intermediate c.
MS: [M+H]+= 740MS: [M+H] + = 740
실시예 5: 화합물 5의 제조Example 5: Preparation of Compound 5
실시예 1에서, 4-브로모-1,1'-비페닐-2',3',4',5',6'-d5을 2-브로모디벤조[b,d]티오펜으로 변경하여 사용하여 중간체 E를 제조하고, 중간체 a를 중간체 d로 변경하여 사용한 것을 제외하고는 화합물 1의 제조 방법과 동일한 제조 방법으로 화합물 5를 제조하였다. In Example 1, 4-bromo-1,1'-biphenyl-2',3',4',5',6'-d5 was changed to 2-bromodibenzo[b,d]thiophene Intermediate E was prepared, and Compound 5 was prepared using the same method as that of Compound 1, except that Intermediate a was changed to Intermediate d.
MS: [M+H]+= 753MS: [M+H] + = 753
실시예 6: 화합물 6의 제조Example 6: Preparation of Compound 6
단계 1) 화합물 6-1의 제조Step 1) Preparation of Compound 6-1
3구 플라스크에 중간체 B(15.0 g, 36.7 mmol), 중간체 d(15.7 g, 40.4 mmol), 비스(트리-터트-부틸포스핀)팔라듐(0)(0.4 g, 0.7 mmol), 소디움 터트-부톡사이드(5.3 g, 55.1 mmol), 및 자일렌(450 ml)을 넣은 후, 아르곤 분위기 환류 조건하에서 8시간 동안 교반하였다. 반응이 종료되면 상온으로 냉각한 후, 물을 넣고 반응액을 분액 깔대기에 옮겨 추출하였다. 추출액을 MgSO4로 건조 및 농축하고 시료를 실리카 겔 컬럼 크로마토그래피로 정제하여 화합물 6-1(16.6 g, 수율 63%)을 수득하였다. In a three-necked flask, intermediate B (15.0 g, 36.7 mmol), intermediate d (15.7 g, 40.4 mmol), bis(tri-tert-butylphosphine)palladium(0) (0.4 g, 0.7 mmol), and sodium tert-butox Side (5.3 g, 55.1 mmol) and xylene (450 ml) were added, and then stirred for 8 hours under reflux conditions in an argon atmosphere. When the reaction was completed, it was cooled to room temperature, water was added, and the reaction solution was transferred to a separatory funnel and extracted. The extract was dried and concentrated over MgSO 4 and the sample was purified by silica gel column chromatography to obtain compound 6-1 (16.6 g, yield 63%).
MS: [M+H]+= 716MS: [M+H] + = 716
단계 2) 화합물 6의 제조Step 2) Preparation of Compound 6
쉐이커 튜브에 화합물 6-1(10.0 g, 14.0 mmol), PtO2(1.0 g, 4.2 mmol), 및 D2O(70 ml)를 넣은 후, 튜브를 밀봉하고 250℃, 600 psi에서 12시간 동안 가열하였다. 반응이 종료되면 클로로포름을 넣고 반응액을 분액 깔대기에 옮겨 추출하였다. 추출액을 MgSO4로 건조 및 농축하고 시료를 실리카 겔 컬럼 크로마토그래피로 정제한 후, 승화 정제를 통해 화합물 6(4.0 g, 수율 38%, 중수소 치환율 82%)을 수득하였다. Compound 6-1 (10.0 g, 14.0 mmol), PtO 2 (1.0 g, 4.2 mmol), and D 2 O (70 ml) were added to the shaker tube, then the tube was sealed and incubated at 250°C and 600 psi for 12 hours. Heated. When the reaction was completed, chloroform was added and the reaction solution was transferred to a separatory funnel and extracted. The extract was dried and concentrated over MgSO 4 , the sample was purified by silica gel column chromatography, and then compound 6 (4.0 g, yield 38%, deuterium substitution rate 82%) was obtained through sublimation purification.
MS: [M+H]+= 749MS: [M+H] + = 749
실시예 7: 화합물 7의 제조Example 7: Preparation of Compound 7
실시예 1에서, 11,12-디하이드로인돌로[2,3-a]카바졸을 5,8-디하이드로인돌로[2,3-c]카바졸로, 4-브로모-1,1'-비페닐-2',3',4',5',6'-d5을 3-브로모-1,1'-비페닐로 변경하여 사용하여 중간체 F를 제조하고, 중간체 a를 중간체 c로 변경하여 사용한 것을 제외하고는 화합물 1의 제조 방법과 동일한 제조 방법으로 화합물 7을 제조하였다. In Example 1, 11,12-dihydroindolo[2,3-a]carbazole was reacted with 5,8-dihydroindolo[2,3-c]carbazole, 4-bromo-1,1' -Biphenyl-2',3',4',5',6'-d5 was changed to 3-bromo-1,1'-biphenyl to prepare intermediate F, and intermediate a was changed to intermediate c. Compound 7 was prepared using the same preparation method as that of Compound 1, except that it was used in modifications.
MS: [M+H]+= 726MS: [M+H] + = 726
실시예 8: 화합물 8의 제조Example 8: Preparation of Compound 8
실시예 1에서, 11,12-디하이드로인돌로[2,3-a]카바졸을 5,7-디하이드로인돌로[2,3-b]카바졸로, 4-브로모-1,1'-비페닐-2',3',4',5',6'-d5을 3-브로모-1,1'-비페닐로 변경하여 사용하여 중간체 G를 제조하고, 중간체 a를 중간체 e로 변경하여 사용한 것을 제외하고는 화합물 1의 제조 방법과 동일한 제조 방법으로 화합물 8을 제조하였다. In Example 1, 11,12-dihydroindolo[2,3-a]carbazole was reacted with 5,7-dihydroindolo[2,3-b]carbazole, 4-bromo-1,1' -Biphenyl-2',3',4',5',6'-d5 was changed to 3-bromo-1,1'-biphenyl to prepare intermediate G, and intermediate a was converted to intermediate e. Compound 8 was prepared using the same preparation method as that of Compound 1, except that it was used in modifications.
MS: [M+H]+= 721MS: [M+H] + = 721
실시예 9: 화합물 9의 제조Example 9: Preparation of Compound 9
실시예 1에서, 11,12-디하이드로인돌로[2,3-a]카바졸을 5,11-디하이드로인돌로[3,2-b]카바졸로, 4-브로모-1,1'-비페닐-2',3',4',5',6'-d5을 4-브로모-1,1'-비페닐-2,2',3,3',4',5,5',6,6'-d9로 변경하여 사용하여 중간체 H를 제조하고, 중간체 a를 중간체 d로 변경하여 사용한 것을 제외하고는 화합물 1의 제조 방법과 동일한 제조 방법으로 화합물 9를 제조하였다. In Example 1, 11,12-dihydroindolo[2,3-a]carbazole was reacted with 5,11-dihydroindolo[3,2-b]carbazole, 4-bromo-1,1' -Biphenyl-2',3',4',5',6'-d5 to 4-bromo-1,1'-biphenyl-2,2',3,3',4',5,5 Intermediate H was prepared by changing it to ',6,6'-d9, and Compound 9 was prepared by the same manufacturing method as that of Compound 1, except that Intermediate a was changed to Intermediate d.
MS: [M+H]+= 725MS: [M+H] + = 725
실시예 10: 화합물 10의 제조Example 10: Preparation of Compound 10
실시예 1에서, 11,12-디하이드로인돌로[2,3-a]카바졸을 5,12-디하이드로인돌로[3,2-a]카바졸로, 4-브로모-1,1'-비페닐-2',3',4',5',6'-d5을 2-브로모-1,1'-비페닐로 변경하여 사용하여 중간체 I를 제조하고, 중간체 a를 중간체 f로 변경하여 사용한 것을 제외하고는 화합물 1의 제조 방법과 동일한 제조 방법으로 화합물 10을 제조하였다. In Example 1, 11,12-dihydroindolo[2,3-a]carbazole was reacted with 5,12-dihydroindolo[3,2-a]carbazole, 4-bromo-1,1' -Biphenyl-2',3',4',5',6'-d5 was changed to 2-bromo-1,1'-biphenyl to prepare Intermediate I, and Intermediate a was converted to Intermediate f. Compound 10 was prepared using the same manufacturing method as that of Compound 1, except that it was used in modifications.
MS: [M+H]+= 726MS: [M+H] + = 726
[실험예][Experimental example]
실험예 1Experimental Example 1
ITO(Indium Tin Oxide)가 1,400 Å의 두께로 박막 코팅된 유리 기판을 세제를 녹인 증류수에 넣고 초음파로 세척하였다. 이 때, 세제로는 피셔사(Fischer Co.) 제품을 사용하였으며, 증류수로는 밀러포어사(Millipore Co.) 제품의 필터(Filter)로 2차로 걸러진 증류수를 사용하였다. ITO를 30분간 세척한 후 증류수로 2회 반복하여 초음파 세척을 10분간 진행하였다. 증류수 세척이 끝난 후, 이소프로필알콜, 아세톤, 메탄올의 용제로 초음파 세척을 하고 건조시킨 후 플라즈마 세정기로 수송시켰다. 또한, 산소 플라즈마를 이용하여 상기 기판을 5분간 세정한 후 진공 증착기로 기판을 수송시켰다.A glass substrate coated with a thin film of ITO (Indium Tin Oxide) with a thickness of 1,400 Å was placed in distilled water with a detergent dissolved in it and washed ultrasonically. At this time, a detergent from Fischer Co. was used, and distilled water filtered secondarily using a filter from Millipore Co. was used as distilled water. After washing the ITO for 30 minutes, ultrasonic cleaning was repeated twice with distilled water for 10 minutes. After washing with distilled water, it was ultrasonic washed with solvents of isopropyl alcohol, acetone, and methanol, dried, and then transported to a plasma cleaner. Additionally, the substrate was cleaned for 5 minutes using oxygen plasma and then transported to a vacuum evaporator.
이렇게 준비된 ITO 투명 전극 위에, 하기 HT-A 화합물과 하기 PD 화합물을 100:5의 중량비로 100 Å의 두께로 열 진공 증착하고, 이어서 하기 HT-A 화합물만 1150 Å의 두께로 증착하여 정공수송층을 형성하였다. 상기 정공수송층 위에, 하기 HT-B 화합물을 450 Å의 두께로 열 진공 증착하여 전자저지층을 형성하였다. 상기 전자저지층 위에, 앞서 제조한 화합물 1과 하기 GD 화합물을 100:15의 중량비로 400 Å의 두께로 진공 증착하여 발광층을 형성하였다. 상기 발광층 위에, 하기 ET-A 화합물을 50 Å의 두께로 진공 증착하여 정공저지층을 형성하였다. 상기 정공저지층 위에, 하기 ET-B 화합물과 하기 Liq 화합물을 2:1의 중량비로 250 Å의 두께로 열 진공 증착하고, 이어서 LiF와 마그네슘을 1:1의 중량비로 30 Å의 두께로 진공 증착하여 전자 수송 및 주입층을 형성하였다. 상기 전자주입층 위에, 마그네슘과 은을 1:4의 중량비로 160 Å의 두께로 증착하여 음극을 형성하여, 유기 발광 소자를 제조하였다.On the ITO transparent electrode prepared in this way, the following HT-A compound and the following PD compound were thermally vacuum deposited to a thickness of 100 Å at a weight ratio of 100:5, and then only the following HT-A compound was deposited to a thickness of 1150 Å to form a hole transport layer. formed. On the hole transport layer, the following HT-B compound was thermally vacuum deposited to a thickness of 450 Å to form an electron blocking layer. On the electron blocking layer, Compound 1 prepared previously and the GD compound below were vacuum deposited to a thickness of 400 Å at a weight ratio of 100:15 to form a light emitting layer. On the light emitting layer, the following ET-A compound was vacuum deposited to a thickness of 50 Å to form a hole blocking layer. On the hole blocking layer, the following ET-B compound and the following Liq compound were thermally vacuum deposited to a thickness of 250 Å at a weight ratio of 2:1, and then LiF and magnesium were vacuum deposited to a thickness of 30 Å at a weight ratio of 1:1. Thus, an electron transport and injection layer was formed. On the electron injection layer, magnesium and silver were deposited at a weight ratio of 1:4 to a thickness of 160 Å to form a cathode, thereby manufacturing an organic light-emitting device.
상기의 과정에서 유기물의 증착속도는 0.4~0.7 Å/sec를 유지하였고, 음극의 리튬플로라이드는 0.3 Å/sec, 은과 마그네슘은 2 Å/sec의 증착 속도를 유지하였으며, 증착시 진공도는 2×10-7 ~ 5×10-6 torr를 유지하여, 유기 발광 소자를 제작하였다.In the above process, the deposition rate of organic matter was maintained at 0.4~0.7 Å/sec, the deposition rate of lithium fluoride of the cathode was maintained at 0.3 Å/sec, silver and magnesium were maintained at 2 Å/sec, and the vacuum degree during deposition was 2. An organic light emitting device was manufactured by maintaining ×10 -7 to 5 × 10 -6 torr.
실험예 2 내지 실험예 10Experimental Examples 2 to 10
화합물 1 대신 하기 표 1에 기재된 화합물을 사용한 것을 제외하고는, 상기 실험예 1과 동일한 방법으로 유기 발광 소자를 제조하였다. An organic light-emitting device was manufactured in the same manner as Experimental Example 1, except that the compounds listed in Table 1 below were used instead of Compound 1.
실험예 11 내지 16Experimental Examples 11 to 16
화합물 1 대신 하기 표 1에 기재된 화합물을 사용한 것을 제외하고는, 상기 실험예 1과 동일한 방법으로 유기 발광 소자를 제조하였다. 하기 표 1에서 각 화합물의 비율은 중량비를 의미하며, 화합물 PGH-1과 PGH-2는 각각 하기와 같다. An organic light-emitting device was manufactured in the same manner as Experimental Example 1, except that the compounds listed in Table 1 below were used instead of Compound 1. In Table 1 below, the ratio of each compound refers to the weight ratio, and compounds PGH-1 and PGH-2 are respectively as follows.
비교실험예 1 내지 4Comparative Experiment Examples 1 to 4
화합물 1 대신 하기 표 1에 기재된 화합물을 사용한 것을 제외하고는, 상기 실험예 1과 동일한 방법으로 유기 발광 소자를 제조하였다. 하기 표 1에서, 화합물 GH-A, GH-B, GH-C 및 GH-D는 각각 하기와 같다.An organic light-emitting device was manufactured in the same manner as Experimental Example 1, except that the compounds listed in Table 1 below were used instead of Compound 1. In Table 1 below, compounds GH-A, GH-B, GH-C and GH-D are respectively as follows.
비교실험예 5 및 6Comparative Experiment Examples 5 and 6
화합물 1 대신 하기 표 1에 기재된 화합물을 사용한 것을 제외하고는, 상기 실험예 1과 동일한 방법으로 유기 발광 소자를 제조하였다. 하기 표 1에서 각 화합물의 비율은 중량비를 의미하며, 화합물 GH-A, GH-C, PGH-1 및 PGH-2는 앞서 설명한 바와 같다. An organic light-emitting device was manufactured in the same manner as Experimental Example 1, except that the compounds listed in Table 1 below were used instead of Compound 1. In Table 1 below, the ratio of each compound refers to the weight ratio, and compounds GH-A, GH-C, PGH-1, and PGH-2 are as described above.
상기 실험예 및 비교실험예에서 제조한 유기 발광 소자를 100℃ 오븐에서 30분간 열처리한 후 꺼내어, 전류를 인가하여 전압, 효율, 수명(T95)을 측정하고 그 결과를 하기 표 1에 나타내었다. 이때, 전압 및 효율은 10 mA/cm2의 전류 밀도를 인가하여 측정하였다. 또한, 하기 표 1의 T95은 전류 밀도 20 mA/cm2에서 초기 휘도가 95%로 저하할 때까지 측정한 시간을 의미한다.The organic light-emitting devices manufactured in the above experimental and comparative experimental examples were heat-treated in an oven at 100°C for 30 minutes, then taken out, and current was applied to measure voltage, efficiency, and lifespan (T95), and the results are shown in Table 1 below. At this time, voltage and efficiency were measured by applying a current density of 10 mA/cm 2 . Additionally, T95 in Table 1 below refers to the time measured until the initial luminance decreases to 95% at a current density of 20 mA/cm 2 .
상기 표 1에 나타난 바와 같이, 비교실험예 1 및 2에 비하여, 트리아진과 인돌로카바졸 사이에 아릴기가 있을 때 보다 저전압, 고효율 특성을 나타냄을 알 수 있다. 이는 전자 주개 역할을 하는 유닛인 인돌로카바졸과 전자 받개 역할을 하는 유닛인 트리아진 사이의 거리가 멀어짐에 따라 전자의 주입 및 이동도가 좋아져 전압 및 효율 특성이 개선되는 것에 기인한다. 또한, 비교실험예 3 및 4에서 사용된 화합물 GH-C와 화합물 GH-D은, 본 발명의 화학식 1에서 Ar3가 페닐인 화합물로서, 본 발명의 화학식 1이 이에 비하여 분자의 안정성이 높음을 확인할 수 있다. 나아가, 본 발명의 화학식 2로 표시되는 화합물과 함께 호스트로서 사용할 경우, 저전압, 고효율, 및 장수명의 특성 효과가 더 크게 나타남을 확인할 수 있었다. As shown in Table 1, compared to Comparative Experiment Examples 1 and 2, it can be seen that lower voltage and higher efficiency characteristics are exhibited when there is an aryl group between triazine and indolocarbazole. This is due to the fact that as the distance between indolocarbazole, a unit that acts as an electron donor, and triazine, a unit that acts as an electron acceptor, increases, the injection and mobility of electrons improves, thereby improving voltage and efficiency characteristics. In addition, Compound GH-C and Compound GH-D used in Comparative Experiment Examples 3 and 4 are compounds in which Ar 3 is phenyl in Formula 1 of the present invention, and Formula 1 of the present invention has higher molecular stability compared to this. You can check it. Furthermore, it was confirmed that when used as a host together with the compound represented by Formula 2 of the present invention, the characteristics of low voltage, high efficiency, and long life appear to be greater.
1: 기판 2: 양극
3: 발광층 4: 음극
5: 정공주입층 6: 정공수송층
7: 발광층 8: 전자수송층1: Substrate 2: Anode
3: light emitting layer 4: cathode
5: hole injection layer 6: hole transport layer
7: light emitting layer 8: electron transport layer
Claims (12)
[화학식 1]
상기 화학식 1에서,
A는 인접한 두 개의 오각 고리와 융합된 벤젠 고리이고,
X는 N, 또는 CH이고, 단 X 중 적어도 하나는 N이고,
L은 치환 또는 비치환된 C6-60 아릴렌이고,
Ar1 및 Ar2는 각각 독립적으로 페닐, 또는 5개의 중수소로 치환된 페닐이고,
Ar3은 하기로 구성되는 군으로부터 선택되는 어느 하나이고:
상기에서,
Y는 O, S, C(CH3)2, 또는 C(페닐)2이고,
R' 중 하나는 상기 화학식 1에 결합되는 부분이고, 나머지는 수소 또는 중수소이고,
R은 수소, 또는 중수소이고,
n은 1 내지 10의 정수이고,
단, Ar1, Ar2 및 Ar3 중 적어도 하나는 1개 이상의 중수소로 치환된다.
Compound represented by Formula 1:
[Formula 1]
In Formula 1,
A is a benzene ring fused with two adjacent pentagonal rings,
X is N, or CH, provided that at least one of X is N,
L is substituted or unsubstituted C 6-60 arylene,
Ar 1 and Ar 2 are each independently phenyl or phenyl substituted with 5 deuterium atoms,
Ar 3 is any one selected from the group consisting of:
In the above,
Y is O, S, C(CH 3 ) 2 , or C(phenyl) 2 ,
One of R' is a portion bonded to Formula 1 above, and the remainder is hydrogen or deuterium,
R is hydrogen or deuterium,
n is an integer from 1 to 10,
However, at least one of Ar 1 , Ar 2 and Ar 3 is substituted with one or more deuterium.
상기 화학식 1은 하기 화학식 1-1 내지 1-6 중 어느 하나로 표시되는,
화합물:
[화학식 1-1]
[화학식 1-2]
[화학식 1-3]
[화학식 1-4]
[화학식 1-5]
[화학식 1-6]
상기 화학식 1-1 내지 1-6에서,
X, L, Ar1, Ar2, Ar3, R 및 n은 제1항에서 정의한 바와 같다.
According to paragraph 1,
Formula 1 is represented by any one of the following formulas 1-1 to 1-6,
compound:
[Formula 1-1]
[Formula 1-2]
[Formula 1-3]
[Formula 1-4]
[Formula 1-5]
[Formula 1-6]
In Formulas 1-1 to 1-6,
X, L, Ar 1 , Ar 2 , Ar 3 , R and n are as defined in clause 1.
L은 페닐렌인,
화합물.
According to paragraph 1,
L is phenylene,
compound.
상기 화학식 1로 표시되는 화합물은 하기로 구성되는 군으로부터 선택되는 어느 하나인,
화합물:
According to paragraph 1,
The compound represented by Formula 1 is any one selected from the group consisting of:
compound:
first electrode; a second electrode provided opposite to the first electrode; And an organic light emitting device comprising one or more organic material layers provided between the first electrode and the second electrode, wherein one or more of the organic material layers is any of claims 1, 2, 3, and 6. An organic light-emitting device comprising the compound according to one clause.
상기 유기물층은 발광층인,
유기 발광 소자.
In clause 7,
The organic layer is a light emitting layer,
Organic light emitting device.
상기 발광층은 하기 화학식 2로 표시되는 화합물을 추가로 포함하는,
유기 발광 소자:
[화학식 2]
상기 화학식 2에서,
Ar4 및 Ar5는 각각 독립적으로, 치환 또는 비치환된 C6-60 아릴; 또는 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상을 포함하는 C2-60 헤테로아릴이고,
R4 및 R5는 각각 독립적으로, 수소; 중수소; 할로겐; 시아노; 니트로; 아미노; 치환 또는 비치환된 C1-60 알킬; 치환 또는 비치환된 C3-60 사이클로알킬; 치환 또는 비치환된 C2-60 알케닐; 치환 또는 비치환된 C6-60 아릴; 또는 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상을 포함하는 C2-60 헤테로아릴이고,
a 및 b는 각각 독립적으로, 0 내지 7의 정수이다.
According to clause 8,
The light-emitting layer further includes a compound represented by the following formula (2):
Organic light emitting device:
[Formula 2]
In Formula 2,
Ar 4 and Ar 5 are each independently substituted or unsubstituted C 6-60 aryl; or C 2-60 heteroaryl containing at least one selected from the group consisting of substituted or unsubstituted N, O and S,
R 4 and R 5 are each independently hydrogen; heavy hydrogen; halogen; cyano; nitro; Amino; Substituted or unsubstituted C 1-60 alkyl; Substituted or unsubstituted C 3-60 cycloalkyl; Substituted or unsubstituted C 2-60 alkenyl; Substituted or unsubstituted C 6-60 aryl; or C 2-60 heteroaryl containing at least one selected from the group consisting of substituted or unsubstituted N, O and S,
a and b are each independently integers from 0 to 7.
Ar4 및 Ar5는 각각 독립적으로, 페닐, 비페닐릴, 터페닐릴, 나프틸, 디벤조퓨라닐, 디벤조티오페닐, 또는 디메틸플루오레닐인,
유기 발광 소자.
According to clause 9,
Ar 4 and Ar 5 are each independently phenyl, biphenylyl, terphenylyl, naphthyl, dibenzofuranyl, dibenzothiophenyl, or dimethylfluorenyl,
Organic light emitting device.
R4 및 R5는 모두 수소인,
유기 발광 소자.
According to clause 9,
R 4 and R 5 are both hydrogen,
Organic light emitting device.
상기 화학식 2로 표시되는 화합물은 하기로 구성되는 군으로부터 선택되는 어느 하나인,
유기 발광 소자:
According to clause 9,
The compound represented by Formula 2 is any one selected from the group consisting of:
Organic light emitting device:
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| CN117940429A (en) * | 2021-09-30 | 2024-04-26 | 株式会社半导体能源研究所 | Organic compound, light-emitting device, thin film, light-emitting device, electronic apparatus, and lighting device |
| CN115521241A (en) * | 2022-09-29 | 2022-12-27 | 阜阳欣奕华材料科技有限公司 | Composition of bicarbazole compound containing para-biphenyl substituent and organic electroluminescent device comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018173598A1 (en) * | 2017-03-22 | 2018-09-27 | 新日鉄住金化学株式会社 | Organic electroluminescent element |
| WO2018198844A1 (en) * | 2017-04-27 | 2018-11-01 | 新日鉄住金化学株式会社 | Organic electroluminescent element |
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| KR100430549B1 (en) | 1999-01-27 | 2004-05-10 | 주식회사 엘지화학 | New organomattalic complex molecule for the fabrication of organic light emitting diodes |
| CN102596950A (en) * | 2009-10-29 | 2012-07-18 | E.I.内穆尔杜邦公司 | Deuterated compounds for electronic applications |
| CN111278829B (en) * | 2018-01-04 | 2023-01-17 | 株式会社Lg化学 | Compound and organic light emitting device including the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018173598A1 (en) * | 2017-03-22 | 2018-09-27 | 新日鉄住金化学株式会社 | Organic electroluminescent element |
| WO2018198844A1 (en) * | 2017-04-27 | 2018-11-01 | 新日鉄住金化学株式会社 | Organic electroluminescent element |
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