WO2020055177A1 - Nouveau composé, composition de revêtement le comprenant et diode électroluminescente organique l'utilisant - Google Patents

Nouveau composé, composition de revêtement le comprenant et diode électroluminescente organique l'utilisant Download PDF

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WO2020055177A1
WO2020055177A1 PCT/KR2019/011851 KR2019011851W WO2020055177A1 WO 2020055177 A1 WO2020055177 A1 WO 2020055177A1 KR 2019011851 W KR2019011851 W KR 2019011851W WO 2020055177 A1 WO2020055177 A1 WO 2020055177A1
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group
light emitting
substituted
unsubstituted
layer
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PCT/KR2019/011851
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Korean (ko)
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김용욱
배재순
이재철
이길선
김영광
백이현
박형일
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주식회사 엘지화학
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Priority to CN201980026645.3A priority Critical patent/CN112020499B/zh
Priority to US17/052,282 priority patent/US20210054000A1/en
Priority to JP2020557237A priority patent/JP7214290B2/ja
Priority to EP19860054.6A priority patent/EP3778582B1/fr
Priority claimed from KR1020190112756A external-priority patent/KR102196430B1/ko
Publication of WO2020055177A1 publication Critical patent/WO2020055177A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/91—Dibenzofurans; Hydrogenated dibenzofurans
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80

Definitions

  • the present invention relates to a novel compound, a coating composition comprising the same, and an organic light emitting device comprising the same.
  • the organic light emitting phenomenon refers to a phenomenon that converts electrical energy into light energy using an organic material.
  • the organic light emitting device using the organic light emitting phenomenon has a wide viewing angle, excellent contrast, and fast response time, and has excellent luminance, driving voltage, and response speed characteristics, and thus many studies have been conducted.
  • the organic light emitting device generally has a structure including an anode and a cathode and an organic material layer between the anode and the cathode.
  • the organic material layer is often formed of a multi-layered structure composed of different materials, for example, may be formed of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, and the like.
  • Patent Document 1 Korean Patent Publication No. 10-2000-0051826
  • the present invention relates to a novel compound, a coating composition comprising the same, and an organic light emitting device comprising the same.
  • the present invention provides a compound represented by Formula 1:
  • R is Si (R 1 ) (R 2 ) (R 3 ),
  • R 1 to R 3 are each independently hydrogen; Substituted or unsubstituted C 1-60 alkyl; Or substituted or unsubstituted C 6-60 aryl; (Tri (C 1-60 alkyl) silyl)-(C 1-10 alkylene)-; Or (tri (C 6-60 aryl) silyl)-(C 1-10 alkylene) -or R 1 and R 2 combine to form a ring, provided that R 1 to R 3 are all substituted or unsubstituted C 1-60 Alkyl,
  • a to c are each independently an integer from 0 to 4,
  • R 4 to R 6 are each independently hydrogen; heavy hydrogen; halogen; Cyano; Substituted or unsubstituted C 1-60 alkyl; Substituted or unsubstituted C 1-60 alkoxy; Substituted or unsubstituted C 1-60 thioalkyl; Substituted or unsubstituted C 3-60 cycloalkyl; Substituted or unsubstituted C 6-60 aryl; Or C 5-60 heteroaryl containing one or more heteroatoms selected from the group consisting of substituted or unsubstituted N, O and S,
  • L 1 is a single bond; Or phenylene,
  • L 2 is a single bond; Or substituted or unsubstituted C 6-60 arylene,
  • Ar is substituted or unsubstituted C 6-60 aryl; Or a C 5-60 heteroaryl containing one or more heteroatoms selected from the group consisting of substituted or unsubstituted N, O and S.
  • the present invention provides a coating composition comprising the compound represented by Formula 1 above.
  • the present invention is a first electrode; A second electrode provided to face the first electrode; And an organic light emitting device including at least one layer of an organic material provided between the first electrode and the second electrode, wherein at least one layer of the organic material layer includes a compound represented by Chemical Formula 1, and provides an organic light emitting device. do.
  • the compound represented by Chemical Formula 1 may be used as a material of an organic material layer of an organic light emitting device, and may improve efficiency, low driving voltage, and / or life characteristics in the organic light emitting device.
  • the compound represented by Formula 1 may be used as a hole injection, hole transport, hole injection and transport, light emission, electron transport, or electron injection material.
  • FIG. 1 shows an example of an organic light emitting device including 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 is done.
  • the present invention provides a compound represented by Formula 1 above.
  • substituted or unsubstituted refers to deuterium; Halogen group; Nitrile group; Nitro group; Hydroxy group; Carbonyl group; Ester groups; Imide group; Amino group; Phosphine oxide group; Alkoxy groups; Aryloxy group; Alkyl thioxy group; Arylthioxy group; Alkyl sulfoxy group; Aryl sulfoxyl group; Silyl group; Boron group; Alkyl groups; Cycloalkyl group; Alkenyl group; Aryl group; Aralkyl group; An alkenyl group; Alkyl aryl groups; Alkylamine groups; 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
  • the number of carbon atoms of the carbonyl group is not particularly limited, but is preferably 1 to 40 carbon atoms. Specifically, it may be a compound having the following structure, but is not limited thereto.
  • the oxygen of the ester group may be substituted with a straight chain, branched or cyclic 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.
  • the number of carbon atoms of the imide group is not particularly limited, but is preferably 1 to 25 carbon atoms. Specifically, it may be a compound having the following structure, but is not limited thereto.
  • the silyl group is specifically trimethylsilyl group, triethylsilyl group, t-butyldimethylsilyl group, vinyldimethylsilyl group, propyldimethylsilyl group, triphenylsilyl group, diphenylsilyl group, phenylsilyl group, etc. However, it is not limited thereto.
  • the boron group is specifically a trimethyl boron group, a triethyl boron group, a t-butyldimethyl boron group, a triphenyl boron group, a phenyl boron group, and the like, but is not limited thereto.
  • examples of the halogen group include fluorine, chlorine, bromine or iodine.
  • the alkyl group may be straight chain or branched chain, and carbon number is not particularly limited, but is preferably 1 to 40. According to an exemplary embodiment, the alkyl group has 1 to 20 carbon atoms. According to another exemplary embodiment, the alkyl group has 1 to 10 carbon atoms. According to another exemplary embodiment, the alkyl group has 1 to 6 carbon atoms.
  • alkyl group examples 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
  • the alkenyl group may be linear or branched, and the number of carbon atoms is not particularly limited, but is preferably 2 to 40. According to one embodiment, the carbon number of the alkenyl group is 2 to 20. According to another exemplary embodiment, the alkenyl group has 2 to 10 carbon atoms. According to another exemplary 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, steelbenyl group, styrenyl group, and the like, but are not limited thereto.
  • the cycloalkyl group is not particularly limited, but preferably has 3 to 60 carbon atoms, and according to an exemplary embodiment, the cycloalkyl group has 3 to 30 carbon atoms. According to another exemplary embodiment, the cycloalkyl group has 3 to 20 carbon atoms. According to another exemplary embodiment, the cycloalkyl group has 3 to 6 carbon atoms.
  • the aryl group is not particularly limited, but is preferably 6 to 60 carbon atoms, and may be a monocyclic aryl group or a polycyclic aryl group. According to one embodiment, the carbon number of the aryl group is 6 to 30. According to one embodiment, the carbon number of the aryl group is 6 to 20.
  • the aryl group may be a phenyl group, a biphenyl group, a terphenyl group, etc., as a monocyclic aryl 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, and the like, but is not limited thereto.
  • the fluorenyl group may be substituted, and two substituents may combine with each other to form a spiro structure.
  • the fluorenyl group When the fluorenyl group is substituted, It can be back. However, it is not limited thereto.
  • the heterocyclic group is a heterocyclic group containing one or more of O, N, P, Si and S as heterogeneous elements, and the number of carbon atoms is not particularly limited, but is preferably 2 to 60 carbon atoms.
  • heterocyclic group examples include thiophene group, furan group, pyrrol group, imidazole group, thiazole group, oxazole group, oxadiazole group, triazole group, pyridyl group, bipyridyl group, pyrimidyl group, triazine group, acridil group , Pyridazine group, pyrazinyl group, quinolinyl group, quinazolinyl group, quinoxalinyl group, phthalazinyl group, pyridopyrimidinyl group, pyrido pyrazinyl group, pyrazino pyrazinyl group, isoquinoline group, indole group , Carbazole group, benzoxazole group, benzoimidazole group, benzothiazole group, benzocarbazole group, benzothiophene group, dibenzothiophene group, benzofuranyl group, phenan
  • an aryl group in an aralkyl group, an alkenyl group, an alkylaryl group, and an arylamine group is the same as the exemplified aryl group described above.
  • the alkyl group among the aralkyl group, alkylaryl group, and alkylamine group is the same as the above-described alkyl group.
  • the description of the heteroaryl group among heteroarylamines may be applied.
  • the alkenyl group in the alkenyl group is the same as the exemplified alkenyl group.
  • the description of the aryl group described above may be applied, except that the arylene is a divalent group.
  • the description of the heterocyclic group described above may be applied, except that the heteroarylene is a divalent group.
  • the hydrocarbon ring is not a monovalent group, and a description of the aryl group or cycloalkyl group described above may be applied, except that two substituents are formed by bonding.
  • the heterocycle is not a monovalent group, and the description of the aforementioned heterocyclic group may be applied, except that two substituents are formed by bonding.
  • Chemical Formula 1 may be the following Chemical Formula 1-1 or 1-2.
  • R, a to c, R 4 to R 6 , L 1 , L 2 and Ar is as defined above.
  • R 1 to R 3 are each independently methyl; i-propyl; t-butyl; Phenyl; Trimethylsilyl-ethylene; Triphenylsilyl-ethylene, or R 1 and R 2 bonded to cyclopentyl; Cyclohexyl; Or 2,3-dihydro-1H-indenyl ring.
  • At least one of R 1 to R 3 may be phenyl.
  • L 2 may be a single bond or phenylene.
  • Ar may be any one selected from the group consisting of:
  • the compound can be selected from the group consisting of:
  • the compound represented by the formula (1) can be prepared by the same method as in Scheme 1.
  • a to c, R 1 to R 6 , L 1 , L 2 and Ar are as defined above.
  • Compound 1-c is synthesized through a coupling reaction between the compound represented by Formula 1-a and the compound represented by Formula 1-b in Scheme 1, and the compound represented by Formula 1-c and the This is a reaction for preparing a compound represented by Formula 1-e through a coupling reaction of the compound represented by Formula 1-d.
  • the reaction is a Suzuki coupling reaction, and is preferably performed in the presence of a palladium catalyst and a base, and the reactor for the Suzuki coupling reaction can be modified as known in the art.
  • the manufacturing method may be more specific in the synthesis example to be described later.
  • the present invention provides a coating composition comprising the compound represented by the formula (1).
  • the present invention provides an organic light emitting device comprising the compound represented by the formula (1).
  • the present invention is a first electrode; A second electrode provided to face the first electrode; And an organic light emitting device including at least one layer of an organic material provided between the first electrode and the second electrode, wherein at least one layer of the organic material layer includes a compound represented by Chemical Formula 1, and provides an organic light emitting device. do.
  • the compound represented by Formula 1 increases the asymmetry of the molecule through introduction of the bulky structure of the silane group, thereby improving solubility compared to the existing anthracene derivative structure. Therefore, the solution processability is increased, and the efficiency and lifetime can be improved when the organic light emitting device including the compound represented by Chemical Formula 1 is manufactured.
  • the organic material layer of the organic light emitting device of the present invention may have a single-layer structure, but may have a multi-layer structure in which two or more organic material layers are stacked.
  • the organic light emitting device of the present invention may have a structure including a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer as an organic material layer.
  • the structure of the organic light emitting device is not limited thereto, and may include a smaller number of organic layers.
  • the organic material layer may include a hole injection layer, a hole transport layer, or a layer that simultaneously performs hole injection and transport, and the hole injection layer, a hole transport layer, or a layer that simultaneously performs hole injection and transport is represented by Formula 1 It may contain a compound to be displayed.
  • the organic material layer may include a light emitting layer, and the light emitting layer may include a compound represented by Chemical Formula 1.
  • the compound represented by Formula 1 may be used as a host material in the light emitting layer, and more specifically, the compound represented by Formula 1 may be used as a host used in the light emitting layer of the blue organic light emitting device.
  • the organic material layer may include an electron transport layer or an electron injection layer, and the electron transport layer or the electron injection layer may include a compound represented by Chemical Formula 1.
  • the electron transport layer, the electron injection layer, or the layer that simultaneously performs electron transport and electron injection may include the compound represented by Chemical Formula 1.
  • the organic material layer includes a light emitting layer and an electron transport layer
  • the electron transport layer may include a compound represented by Chemical Formula 1.
  • the organic light emitting device according to the present invention may be an organic light emitting device having a structure in which an anode, one or more organic material layers, and a cathode are sequentially stacked on a substrate. Further, the organic light emitting device according to the present invention may be an organic light emitting device of an inverted type in which a cathode, one or more organic material layers, and an anode are sequentially stacked on a substrate.
  • FIGS. 1 and 2 the structure of the organic light emitting device according to an embodiment of the present invention is illustrated in FIGS. 1 and 2.
  • FIG. 1 shows an example of an organic light emitting device including a substrate 1, an anode 2, a light emitting layer 3, and a cathode 4.
  • the compound represented by Chemical Formula 1 may be included in the light emitting layer.
  • 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 is done.
  • the compound represented by Chemical Formula 1 may be included in one or more of the hole injection layer, the hole transport layer, the light emitting layer, and the electron transport layer.
  • the organic light emitting device according to the present invention may be manufactured by materials and methods known in the art, except that at least one layer of the organic material layer includes the compound represented by Chemical Formula 1.
  • the organic material layers may be formed of the same material or different materials.
  • the organic light emitting device may be manufactured by sequentially stacking a first electrode, an organic material layer, and a second electrode on a substrate.
  • a positive electrode is formed by depositing a metal or conductive metal oxide or an alloy thereof on a substrate using a physical vapor deposition (PVD) method such as sputtering or e-beam evaporation.
  • PVD physical vapor deposition
  • an organic material layer including a hole injection layer, a hole transport layer, a light emitting layer, and an electron transport layer is formed thereon, and a material that can be used as a cathode is deposited thereon.
  • an organic light emitting device may be formed by sequentially depositing a cathode material, an organic material layer, and a cathode material on a substrate.
  • the compound represented by Chemical Formula 1 may be formed as an organic material layer by a solution coating method as well as a vacuum deposition method when manufacturing an organic light emitting device.
  • the compound represented by the formula (1) is excellent in solubility in a solvent used in the solution coating method, it is easy to apply the solution coating method.
  • the solution application method means spin coating, dip coating, doctor blading, inkjet printing, screen printing, spraying, roll coating, and the like, but is not limited to these.
  • the present invention provides a coating composition comprising a compound represented by Formula 1 and a solvent.
  • the solvent is not particularly limited as long as it is a solvent capable of dissolving or dispersing the compound according to the present invention, for example, chloroform, methylene chloride, 1,2-dichloroethane, 1,1,2-trichloroethane, chlorobenzene, o -Chlorine-based solvents such as dichlorobenzene; Ether-based solvents such as tetrahydrofuran and dioxane; Aromatic hydrocarbon solvents such as toluene, xylene, trimethylbenzene and mesitylene; Aliphatic hydrocarbon-based solvents such as cyclohexane, methylcyclohexane, n-pentane, n-hexane, n-heptane, n-octane, n-nonane, and n-decane; Ketone solvents such as acetone, methyl ethyl ketone, and cyclohexanone; Ester solvent
  • Alcohols and derivatives thereof Alcohol solvents such as methanol, ethanol, propanol, isopropanol, and cyclohexanol; Sulfoxide-based solvents such as dimethyl sulfoxide; And amide solvents such as N-methyl-2-pyrrolidone and N, N-dimethylformamide; Benzoate solvents such as butyl benzoate and methyl-2-methoxybenzoate; Tetralin; And solvents such as 3-phenoxy-toluene. Further, the above-described solvent may be used alone or in combination of two or more solvents.
  • the viscosity of the coating composition is preferably 1 cP to 10 cP, and the coating is easy in the above range.
  • the concentration of the compound according to the present invention in the coating composition is preferably 0.1 wt / v% to 20 wt / v%.
  • the present invention provides a method for forming a functional layer using the coating composition described above. Specifically, coating the coating composition according to the present invention described above by a solution process; And heat-treating the coated coating composition.
  • the heat treatment temperature is preferably 150 to 230 ° C.
  • the heat treatment time is 1 minute to 3 hours, more preferably 10 minutes to 1 hour.
  • the heat treatment is preferably performed in an inert gas atmosphere such as argon and nitrogen.
  • an organic light emitting device may be manufactured by sequentially depositing an organic material layer and a cathode material from a cathode material on a substrate (WO 2003/012890).
  • the manufacturing method is not limited thereto.
  • the first electrode is an anode
  • the second electrode is a cathode
  • the first electrode is a cathode
  • the second electrode is an anode
  • the positive electrode material is preferably a material having a large work function so that hole injection into the organic layer is smooth.
  • the positive electrode 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); A combination of metal and oxide 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, but are not limited thereto.
  • the cathode material is preferably a material having a small work function to facilitate electron injection into the organic material layer.
  • 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 is a multilayer structure material such as LiF / Al or LiO 2 / Al, but is not limited thereto.
  • the hole injection layer is a layer for injecting holes from an electrode, and has the ability to transport holes as a hole injection material, and thus has a hole injection effect at an anode, an excellent hole injection effect for a light emitting layer or a light emitting material, and is produced in the light emitting layer.
  • a compound which prevents migration of the excitons to the electron injection layer or the electron injection material, and which has excellent thin film formation ability is preferable. It is preferable that the highest occupied molecular orbital (HOMO) of the hole injection material is between the work function of the positive electrode material and the HOMO of the surrounding organic material layer.
  • HOMO highest occupied molecular orbital
  • hole injection material examples include metal porphyrin, oligothiophene, arylamine-based organic matter, hexanitrile hexaazatriphenylene-based organic matter, quinacridone-based organic matter, and perylene-based Organic materials, anthraquinones, and polyaniline and polythiophene-based conductive polymers, but are not limited thereto.
  • the hole transport layer is a layer that receives holes from the hole injection layer and transports holes from the hole injection layer to the light emitting layer, and is a material that can transport holes to the light emitting layer by receiving holes from the anode or the hole injection layer as a hole transport material and has a large mobility for holes. This is suitable. Specific examples include arylamine-based organic materials, conductive polymers, and block copolymers having a conjugated portion and a non-conjugated portion, but are not limited thereto.
  • a material capable of emitting light in the visible light region by receiving and bonding holes and electrons from the hole transport layer and the electron transport layer, respectively is preferably a material having good quantum efficiency for fluorescence or phosphorescence.
  • Specific examples include 8-hydroxy-quinoline aluminum complex (Alq 3 ); Carbazole-based compounds; Dimerized styryl compounds; BAlq; 10-hydroxybenzo quinoline-metal compound; Benzoxazole, benzthiazole and benzimidazole compounds; Poly (p-phenylenevinylene) (PPV) polymers; Spiro compounds; Polyfluorene, rubrene, and the like, but are not limited to these.
  • the light emitting layer may include a host material and a dopant material.
  • the host material may be a condensed aromatic ring derivative or a heterocyclic compound.
  • condensed aromatic ring derivatives include anthracene derivatives, pyrene derivatives, naphthalene derivatives, pentacene derivatives, phenanthrene compounds, fluoranthene compounds, etc.
  • heterocyclic compounds include carbazole derivatives, dibenzofuran derivatives, and ladder types Furan compounds, pyrimidine derivatives, and the like, but are not limited thereto.
  • a compound according to the present invention is used as the host material.
  • the dopant material examples include aromatic amine derivatives, strylamine compounds, boron complexes, fluoranthene compounds, and metal complexes.
  • the aromatic amine derivative is a condensed aromatic ring derivative having a substituted or unsubstituted arylamino group, and includes pyrene, anthracene, chrysene, periplanene, etc. having an arylamino group, and substituted or unsubstituted as a styrylamine compound.
  • a compound in which at least one arylvinyl group is substituted with the arylamine, a substituent selected from 1 or 2 or more from the group consisting of an aryl group, a silyl group, an alkyl group, a cycloalkyl group, and an arylamino group is substituted or unsubstituted.
  • a substituent selected from 1 or 2 or more from the group consisting of an aryl group, a silyl group, an alkyl group, a cycloalkyl group, and an arylamino group is substituted or unsubstituted.
  • styrylamine, styryldiamine, styryltriamine, styryltetraamine, and the like but are not limited thereto.
  • examples of the metal complex include an iridium complex and a platinum complex, but are not limited thereto.
  • 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 a material capable of receiving electrons from the cathode and transferring them to the light emitting layer is suitable. Do. Specific examples include the Al complex of 8-hydroxyquinoline; Complexes including Alq 3 ; Organic radical compounds; Hydroxyflavone-metal complexes, and the like, 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.
  • suitable cathode materials are conventional materials that have a low work function and are followed by an aluminum or silver layer. Specifically, cesium, barium, calcium, ytterbium and samarium, each case followed by an aluminum layer or a silver layer.
  • the electron injection layer is a layer that injects electrons from an electrode, has the ability to transport electrons, has an electron injection effect from a cathode, has an excellent electron injection effect on a light emitting layer or a light emitting material, and injects holes generated in the light emitting layer A compound that prevents migration to the layer and has excellent thin film forming ability is preferred.
  • fluorenone anthraquinodimethane, diphenoquinone, thiopyran dioxide, oxazole, oxadiazole, triazole, imidazole, perylenetetracarboxylic acid, preorenylidene methane, anthrone and the like and their derivatives, metal Complex compounds, nitrogen-containing 5-membered ring derivatives, and the like, but are not limited thereto.
  • Examples of the metal complex compound 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) ( There are o-cresolato) gallium, bis (2-methyl-8-quinolinato) (1-naphtholato) aluminum, bis (2-methyl-8-quinolinato) (2-naphtholato) gallium, It is not limited to this.
  • the organic light emitting device may be a front emission type, a back emission type, or a double-sided emission type depending on the material used.
  • the compound represented by Chemical Formula 1 may be included in an organic solar cell or an organic transistor in addition to the organic light emitting device.
  • a glass substrate coated with a thin film of indium tin oxide (ITO) at a thickness of 50 nm was placed in distilled water in which detergent was dissolved and washed with ultrasonic waves.
  • Fischer Fischer Co.
  • distilled water filtered secondarily by a filter of Millipore Co. was used as distilled water.
  • ultrasonic cleaning was repeated twice for 10 minutes with distilled water.
  • ultrasonic cleaning was performed with a solvent of isopropyl alcohol, acetone, and methanol, followed by drying and transporting to a plasma cleaner.
  • the substrate was transferred to a vacuum evaporator.
  • an aqueous dispersion of an electrically conductive polymer and a sulfonic acid polymer is spin-coated at 1000 rpm for 60 seconds, baked at 80 ° C for 2 minutes, and baked at 120 ° C for 15 minutes to form a hole injection layer.
  • a hole transport layer was formed by spin-coating and baking a solution of a triarylamine polymer on the hole injection layer.
  • a 2 wt% toluene solution was prepared with 95: 5 parts by weight of Compound A and Compound BD1 prepared in Example 1 above, spin-coated at 5000 rpm, baked at 80 ° C. for 2 minutes, and baked at 120 ° C.
  • lithium fluoride (LiF) was deposited to a film thickness of about 1 nm
  • aluminum was deposited to a film thickness of 100 nm to form a negative electrode.
  • the deposition rate of lithium fluoride of the negative electrode was 0.3 Pa / sec and aluminum of 2 Pa / sec, and the vacuum degree during deposition was maintained at 2 x10 -7 to 5 x10 -6 torr, thereby producing an organic light emitting device. .
  • ITO 50nm
  • HIL 40nm
  • HTL 20nm
  • EML 55nm
  • LiF 1nm
  • Al 100 nm
  • An organic light-emitting device was manufactured in the same manner as in Experimental Example 1, except that the compound used for the preparation of the light-emitting layer was changed as shown in Table 1 below.
  • An organic light-emitting device was manufactured in the same manner as in Experimental Example 1, except that the compound used for the preparation of the light-emitting layer was changed as shown in Table 1 below.
  • the organic light-emitting device using the compound of the present invention as a host of the light-emitting layer showed excellent properties in terms of voltage, efficiency, and life.
  • substrate 2 anode

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  • Electroluminescent Light Sources (AREA)

Abstract

La présente invention concerne un nouveau composé, une composition de revêtement le comprenant et une diode électroluminescente organique l'utilisant.
PCT/KR2019/011851 2018-09-14 2019-09-11 Nouveau composé, composition de revêtement le comprenant et diode électroluminescente organique l'utilisant WO2020055177A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201980026645.3A CN112020499B (zh) 2018-09-14 2019-09-11 新的化合物、包含其的涂覆组合物和包含其的有机发光器件
US17/052,282 US20210054000A1 (en) 2018-09-14 2019-09-11 Novel Compound, Coating Composition Comprising the Same and Organic Light Emitting Device Comprising the Same
JP2020557237A JP7214290B2 (ja) 2018-09-14 2019-09-11 新規な化合物、これを含むコーティング組成物およびこれを利用した有機発光素子
EP19860054.6A EP3778582B1 (fr) 2018-09-14 2019-09-11 Nouveau composé, composition de revêtement le comprenant et diode électroluminescente organique comprenant celui-ci

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20180110277 2018-09-14
KR10-2018-0110277 2018-09-14
KR1020190112756A KR102196430B1 (ko) 2018-09-14 2019-09-11 신규한 화합물, 이를 포함하는　코팅　조성물 및 이를 이용한 유기발광 소자
KR10-2019-0112756 2019-09-11

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WO2020055177A1 true WO2020055177A1 (fr) 2020-03-19

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000051826A (ko) 1999-01-27 2000-08-16 성재갑 신규한 착물 및 그의 제조 방법과 이를 이용한 유기 발광 소자
WO2003012890A2 (fr) 2001-07-20 2003-02-13 Novaled Gmbh Composant electroluminescent a couches organiques
KR20170039020A (ko) * 2015-09-30 2017-04-10 주식회사 스킨앤스킨 유기 전계발광 화합물 및 유기 전계발광 소자
KR20170044001A (ko) * 2015-10-13 2017-04-24 에스에프씨 주식회사 저계조 영역에서의 휘도감소율이 개선된 유기 발광 소자
KR20180037695A (ko) * 2016-10-05 2018-04-13 에스에프씨 주식회사 장수명, 저전압 및 고효율 특성을 갖는 유기 발광 소자
KR20180037717A (ko) * 2016-10-05 2018-04-13 에스에프씨 주식회사 장수명, 저전압 및 고효율 특성을 갖는 유기 발광 소자
KR20180077887A (ko) * 2016-12-29 2018-07-09 에스에프씨 주식회사 고효율을 갖는 유기 발광 소자

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000051826A (ko) 1999-01-27 2000-08-16 성재갑 신규한 착물 및 그의 제조 방법과 이를 이용한 유기 발광 소자
WO2003012890A2 (fr) 2001-07-20 2003-02-13 Novaled Gmbh Composant electroluminescent a couches organiques
KR20170039020A (ko) * 2015-09-30 2017-04-10 주식회사 스킨앤스킨 유기 전계발광 화합물 및 유기 전계발광 소자
KR20170044001A (ko) * 2015-10-13 2017-04-24 에스에프씨 주식회사 저계조 영역에서의 휘도감소율이 개선된 유기 발광 소자
KR20180037695A (ko) * 2016-10-05 2018-04-13 에스에프씨 주식회사 장수명, 저전압 및 고효율 특성을 갖는 유기 발광 소자
KR20180037717A (ko) * 2016-10-05 2018-04-13 에스에프씨 주식회사 장수명, 저전압 및 고효율 특성을 갖는 유기 발광 소자
KR20180077887A (ko) * 2016-12-29 2018-07-09 에스에프씨 주식회사 고효율을 갖는 유기 발광 소자

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