WO2022191561A1 - 신규한 화합물 및 이를 이용한 유기 발광 소자 - Google Patents
신규한 화합물 및 이를 이용한 유기 발광 소자 Download PDFInfo
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Definitions
- the present invention relates to a novel compound and an organic light emitting device comprising the same.
- the organic light emitting phenomenon refers to a phenomenon in which electric energy is converted 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, fast response time, and excellent luminance, driving voltage, and response speed characteristics, and thus many studies are being conducted.
- An 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 made of a multi-layered structure composed of different materials in order to increase the efficiency and stability of the organic light emitting device, for example, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, it may be made of an electron injection layer, etc.
- an organic light emitting device using a solution process is being developed instead of a conventional deposition process.
- all organic light emitting device layers were coated with a solution process to develop an organic light emitting device, but the current technology has limitations. Therefore, only HIL, HTL, and EML are processed in a solution process in a regular structure, and subsequent processes are performed using the conventional deposition process.
- the present invention provides a material for a novel organic light emitting device that can be used in an organic light emitting device and can be used in a solution process at the same time.
- Patent Document 1 Korean Patent Publication No. 10-2000-0051826
- the present invention relates to a novel compound and an organic light emitting device comprising the same.
- the present invention provides a compound represented by the following formula (1):
- A1 is a C 6-60 aromatic ring
- A2 is a C 6-60 aromatic ring, or a C2-60 heteroaromatic ring comprising any one of N, O and S;
- A3 is a C 6-60 aromatic ring, or a C2-60 heteroaromatic ring comprising any one of N, O and S;
- A4 is a C 6-60 aromatic ring
- X is NR, wherein R is substituted or unsubstituted C 6-60 aryl;
- Y is B
- n is an integer from 1 to 4.
- the present invention is a first electrode; a second electrode provided to face the first electrode; and 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 the compound represented by Formula 1 above; to provide.
- the compound represented by Formula 1 described above can be used as a material for an organic material layer of an organic light emitting device, can be used in a solution process, and can improve efficiency, low driving voltage and/or lifespan characteristics in an organic light emitting device have.
- 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 .
- an organic light emitting device including a substrate 1, an anode 2, a hole injection layer 5, a hole transport layer 6, a light emitting layer 7, an electron injection and transport layer 8, and a cathode 4 will show
- substituted or unsubstituted refers to deuterium; halogen group; cyano group; nitro group; hydroxyl group; carbonyl group; ester group; imid; amino group; phosphine oxide group; alkoxy group; aryloxy group; alkyl thiooxy group; arylthioxy group; an alkyl sulfoxy group; arylsulfoxy group; silyl group; boron group; an alkyl group; cycloalkyl group; alkenyl group; aryl group; aralkyl group; aralkenyl group; an alkylaryl group; an alkylamine group; an aralkylamine group; heteroarylamine group; arylamine group; an aryl phosphine group; or N, O, and S atoms, which is substituted or unsubstituted with one or more substituents selected from the group consisting of heteroaryl containing one
- a substituent in which two or more substituents are connected may be a biphenyl group. That is, the biphenyl group may be an aryl group or may be interpreted as a substituent in which two phenyl groups are connected.
- the number of carbon atoms of the carbonyl group is not particularly limited, but it is preferably from 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 linear, branched or cyclic alkyl group having 1 to 25 carbon atoms or an aryl group having 6 to 25 carbon atoms.
- a linear, branched or cyclic alkyl group having 1 to 25 carbon atoms or an aryl group having 6 to 25 carbon atoms 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 it is preferably from 1 to 25 carbon atoms. Specifically, it may be a compound having the following structure, but is not limited thereto.
- the silyl group specifically includes a trimethylsilyl group, a triethylsilyl group, a t-butyldimethylsilyl group, a vinyldimethylsilyl group, a propyldimethylsilyl group, a triphenylsilyl group, a diphenylsilyl group, a phenylsilyl group, and the like.
- the present invention is not limited thereto.
- the boron group specifically includes a trimethylboron group, a triethylboron group, a t-butyldimethylboron group, a triphenylboron group, a phenylboron 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 linear or branched, and the number of carbon atoms is not particularly limited, but is preferably 1 to 40. According to an exemplary embodiment, the number of carbon atoms in the alkyl group is 1 to 20. 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 an exemplary embodiment, the carbon number of the alkenyl group is 2 to 20. According to another exemplary embodiment, the carbon number of the alkenyl group is 2 to 10. 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, stilbenyl 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 carbon number of the cycloalkyl group is 3 to 20. According to another exemplary embodiment, the cycloalkyl group has 3 to 6 carbon atoms.
- 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 an exemplary embodiment, the carbon number of the aryl group is 6 to 30. According to an exemplary embodiment, the carbon number of the aryl group is 6 to 20.
- the aryl group may be a monocyclic aryl group such as a phenyl group, a biphenyl group, or a terphenyl group, but is not limited thereto.
- the polycyclic aryl group may be a naphthyl group, an anthracenyl group, a phenanthrenyl group, a pyrenyl group, a perylenyl group, a chrysenyl group, or a fluorenyl group, but is not limited thereto.
- the fluorenyl group may be substituted, and two substituents may be bonded to each other to form a spiro structure.
- the fluorenyl group is substituted, etc. can be
- the present invention is not limited thereto.
- heteroaryl is a heteroaryl containing at least one of O, N, Si and S as a heterogeneous element, and the number of carbon atoms is not particularly limited, but is preferably from 2 to 60 carbon atoms.
- heteroaryl include xanthene, thioxanthen, thiophene, furan, pyrrole, imidazole, thiazole, oxazole, oxadiazole, triazole, pyridyl, bipyridyl, Pyrimidyl group, triazine group, acridyl group, pyridazine group, pyrazinyl group, quinolinyl group, quinazoline group, quinoxalinyl group, phthalazinyl group, pyrido pyrimidinyl group, pyridopyrazinyl group, pyrazino Pyrazinyl group, isoquinoline group, indole group, carbazo
- the aryl group in the aralkyl group, the aralkenyl group, the alkylaryl group, the arylamine group, and the arylsilyl group is the same as the examples of the aryl group described above.
- the alkyl group among the aralkyl group, the alkylaryl group, and the alkylamine group is the same as the example of the above-described alkyl group.
- heteroaryl among heteroarylamines the description regarding heteroaryl described above may be applied.
- the alkenyl group among the aralkenyl groups is the same as the examples of the above-described alkenyl groups.
- the description of the above-described aryl group may be applied except that arylene is a divalent group.
- the description of the aforementioned heteroaryl may be applied, except that heteroarylene is a divalent group.
- the hydrocarbon ring is not a monovalent group, and the description of the above-described aryl group or cycloalkyl group may be applied, except that it is formed by combining two substituents.
- the heterocycle is not a monovalent group, and the description of the above-described heteroaryl may be applied, except that it is formed by combining two substituents.
- the present invention provides a compound represented by the above formula (1).
- A1, A2, A3 and A4 are each independently a substituted or unsubstituted benzene ring.
- the formula (1) is represented by the following formula (1'):
- n is an integer from 1 to 4,
- R 1 is each independently hydrogen, deuterium, halogen, cyano, substituted or unsubstituted C 1-60 alkyl, substituted or unsubstituted C 6-60 aryl, substituted or unsubstituted N, O and S C 2-60 heteroaryl including any one or more heteroatoms selected from the group, or a substituent represented by the following formula (2); or two adjacent R 1 combine with each other to form a substituted or unsubstituted C 3-10 cycloalkyl,
- each R 2 is independently hydrogen, deuterium, halogen, cyano, substituted or unsubstituted C 1-60 alkyl, substituted or unsubstituted C 6-60 aryl, substituted or unsubstituted N, O and S C 2-60 heteroaryl including any one or more heteroatoms selected from the group, or a substituent represented by the following formula (2); or two adjacent R 2 combine with each other to form a substituted or unsubstituted C 3-10 cycloalkyl, or a substituted or unsubstituted C 6-60 aromatic ring,
- each R 3 is independently hydrogen, deuterium, halogen, cyano, substituted or unsubstituted C 1-60 alkyl, substituted or unsubstituted C 6-60 aryl, or substituted or unsubstituted N, O and S C 2-60 heteroaryl including any one or more heteroatoms selected from the group consisting of; or two adjacent R 3 combine with each other to form a substituted or unsubstituted C 3-10 cycloalkyl, or —O—(CH 2 ) m —O—, where m is an integer from 1 to 4,
- R 4 is hydrogen, deuterium, substituted or unsubstituted C 1-60 alkyl, substituted or unsubstituted C 3-60 cycloalkyl, substituted or unsubstituted C 6-60 aryl, substituted or unsubstituted N, O and C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of S, or a substituent represented by the following formula (2),
- R 5 is hydrogen, deuterium, substituted or unsubstituted C 1-60 alkyl, substituted or unsubstituted C 3-60 cycloalkyl, substituted or unsubstituted C 6-60 aryl, substituted or unsubstituted N, O and C 2-60 heteroaryl including any one or more heteroatoms selected from the group consisting of S,
- L is a single bond, or a substituted or unsubstituted C 6-60 arylene
- L 1 and L 2 are each independently selected from the group consisting of a single bond, substituted or unsubstituted C 6-60 arylene, or substituted or unsubstituted N, O, and S It contains any one or more heteroatoms is C 2-60 heteroarylene,
- Ar 1 and Ar 2 are each independently C 6-60 aryl, substituted or unsubstituted, or C 2- containing at least one heteroatom selected from the group consisting of substituted or unsubstituted N, O and S 60 heteroaryl;
- n1 is an integer from 0 to 4,
- n2 is each independently an integer of 0-5.
- the formula 1' is represented by any one of the following formulas 1-1 to 1-6:
- R 1 to R 5 , n1 and n2 are as defined above.
- n 1, 2, or 3.
- n1 is 1 and R 1 consists of hydrogen, deuterium, substituted or unsubstituted C 1-10 alkyl, substituted or unsubstituted C 6-10 aryl, substituted or unsubstituted N, O and S C 8-12 heteroaryl containing at least one heteroatom selected from the group consisting of, or di(substituted or unsubstituted C 6-10 aryl)amino.
- n1 is 1 and R 1 is phenyl substituted with hydrogen, deuterium, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertbutyl, phenyl, tertbutyl, phenyl, benzofuranyl, dibenzofuranyl , benzothiophenyl, dibenzothiophenyl, or diphenylamino.
- n1 is 2 and R 1 combine with each other to form a substituted or unsubstituted C 5-6 cycloalkyl.
- n1 is 2 and R 1 combine with each other to form a substituent represented by any one of the following:
- n2 is 1 and R 2 consists of hydrogen, deuterium, substituted or unsubstituted C 1-10 alkyl, substituted or unsubstituted C 6-10 aryl, substituted or unsubstituted N, O and S C 8-12 heteroaryl containing at least one heteroatom selected from the group consisting of, or di(substituted or unsubstituted C 6-10 aryl)amino.
- n2 is 1 and R 2 is phenyl substituted with hydrogen, deuterium, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertbutyl, phenyl, tertbutyl, phenyl, benzofuranyl, dibenzofuranyl , benzothiophenyl, dibenzothiophenyl, or diphenylamino.
- n2 is 2 and R 2 combine with each other to form a substituent represented by any one of the following:
- n3 is 1 or 2
- R 3 is each independently hydrogen, deuterium, substituted or unsubstituted C 1-10 alkyl, substituted or unsubstituted C 6-10 aryl, substituted or unsubstituted N, C 8-12 heteroaryl containing at least one heteroatom selected from the group consisting of O and S, or di(substituted or unsubstituted C 6-10 aryl)amino.
- n3 is 1 or 2 and R 3 is each independently hydrogen, deuterium, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertbutyl, phenyl, tertbutyl substituted phenyl, benzofuranyl , dibenzofuranyl, benzothiophenyl, dibenzothiophenyl, or diphenylamino.
- n3 is 2 and R 3 are taken together to form a substituted or unsubstituted C 5-6 cycloalkyl, or —O—(CH 2 ) m —O—, where m is 1 to 3 is the integer of
- n3 is 2 and R 3 combine with each other to form a substituent represented by any one of the following:
- R 4 is a substituted or unsubstituted C 1-10 alkyl, a substituted or unsubstituted C 6-30 aryl, or a substituent represented by Formula 2 above.
- R 4 is methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertbutyl, dimethylfluorenyl, diphenylfluorenyl, or any one selected from the group consisting of:
- R 5 is hydrogen, deuterium, substituted or unsubstituted C 1-10 alkyl, or substituted or unsubstituted C 6-10 aryl.
- R 5 is hydrogen, deuterium, or phenyl.
- the present invention provides a method for preparing a compound represented by Formula 1' as shown in Scheme 1 below, and the compound represented by Formula 1 may also be prepared with reference thereto.
- Step 1 is an amine substitution reaction, preferably performed in the presence of a palladium catalyst and a base, and the reactor for the amine substitution reaction can be changed as known in the art.
- Step 2 is preferably performed in the presence of a base by reacting with BI 3 .
- the manufacturing method may be more specific in Preparation Examples to be described later.
- the compound according to the present invention can form an organic material layer, particularly, a light emitting layer of an organic light emitting device by a solution process.
- the compound may be used as a dopant material of the emission layer.
- the present invention provides a coating composition comprising the above-described compound according to the present invention 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, and for example, chloroform, methylene chloride, 1,2-dichloroethane, 1,1,2-trichloroethane, chlorobenzene, o - Chlorine solvents, such as dichlorobenzene; ether solvents such as tetrahydrofuran and dioxane; aromatic hydrocarbon solvents such as toluene, xylene, trimethylbenzene, and mesitylene; aliphatic hydrocarbon 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 solvents such
- the coating composition may further include a compound used as a host material, a description of the compound used in the host material will be described later.
- the coating composition may include a compound used as a dopant material, and a description of the compound used for the dopant material will be described later.
- the viscosity of the coating composition is preferably 1 cP to 10 cP, and 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 of forming a light emitting layer using the above-described coating composition. Specifically, coating the light emitting layer according to the present invention on the anode or on the hole transport layer formed on the anode in a solution process; and heat-treating the coated coating composition.
- the solution process uses the coating composition according to the present invention described above, and means spin coating, dip coating, doctor blading, inkjet printing, screen printing, spraying, roll coating, etc., but is not limited thereto.
- the heat treatment temperature in the heat treatment step 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 or nitrogen.
- the present invention provides an organic light emitting device including the compound represented by the formula (1).
- the present invention provides a first electrode; a second electrode provided to face the first electrode; and at least one organic material layer provided between the first electrode and the second electrode, wherein at least one of the organic material layers includes the compound represented by Formula 1 above. do.
- 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, etc. 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 layer may include an emission layer, and the emission layer includes the compound represented by Formula 1 above.
- the compound according to the present invention can be used as a dopant in the light emitting layer.
- 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.
- 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 material layers, and an anode are sequentially stacked on a substrate.
- FIGS. 1 and 2 the structure of the organic light emitting diode 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 Formula 1 may be included in the light emitting layer.
- the compound represented by Formula 1 may be included in the light emitting layer.
- the organic light emitting device according to the present invention may be manufactured using materials and methods known in the art, except that at least one layer of the organic material layer includes the compound represented by Formula 1 above. Also, 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.
- the organic light emitting device may be manufactured by sequentially stacking an anode, an organic material layer, and a cathode on a substrate.
- a PVD (physical vapor deposition) method such as sputtering or e-beam evaporation
- a metal or conductive metal oxide or an alloy thereof is deposited on a substrate to form an anode.
- an organic material layer including a hole injection layer, a hole transport layer, a light emitting layer and an electron transport layer thereon it can be prepared by depositing a material that can be used as a cathode thereon.
- an organic light emitting device may be manufactured by sequentially depositing an organic material layer and an anode 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 and the second electrode is an anode
- anode material a material having a large work function is generally preferred so that holes can be smoothly injected into the organic material layer.
- the anode material include metals such as vanadium, chromium, copper, zinc, 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 compounds 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 anode material include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin and lead, or alloys thereof; and a multi-layered 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 the electrode, and as a hole injection material, it has the ability to transport holes, so it has a hole injection effect at the anode, an excellent hole injection effect on the light emitting layer or the light emitting material, and is produced in the light emitting layer
- a compound which prevents the movement of excitons to the electron injection layer or the electron injection material and is excellent in the ability to form a thin film 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
- the hole injection material examples include metal porphyrin, oligothiophene, arylamine-based organic material, hexanitrile hexaazatriphenylene-based organic material, quinacridone-based organic material, and perylene-based organic material. of organic substances, anthraquinones, polyaniline and polythiophene-based conductive compounds, and the like, but are not limited thereto.
- the hole transport layer is a layer that receives holes from the hole injection layer and transports them to the light emitting layer.
- the hole transport material is a material that can transport holes from the anode or the hole injection layer to the light emitting layer and transfer them to the light emitting layer. material is suitable. Specific examples include, but are not limited to, an arylamine-based organic material, a conductive compound, and a block copolymer having a conjugated portion and a non-conjugated portion together.
- the emission layer may include a host material and a dopant material.
- the host material includes a condensed aromatic ring derivative or a heterocyclic compound containing compound.
- condensed aromatic ring derivatives include anthracene derivatives, pyrene derivatives, naphthalene derivatives, pentacene derivatives, phenanthrene compounds, fluoranthene compounds, etc.
- heterocyclic-containing compounds include carbazole derivatives, dibenzofuran derivatives, ladder type Furan compounds, pyrimidine derivatives, and the like, but are not limited thereto.
- the dopant material examples include an aromatic amine derivative, a strylamine compound, a boron complex, a fluoranthene compound, and a metal complex.
- the aromatic amine derivative is a condensed aromatic ring derivative having a substituted or unsubstituted arylamino group, and includes pyrene, anthracene, chrysene, and periflanthene having an arylamino group.
- styrylamine compound a substituted or unsubstituted It is a compound in which at least one arylvinyl group is substituted in the arylamine, and one or two or more substituents selected from the group consisting of an aryl group, a silyl group, an alkyl group, a cycloalkyl group and an arylamino group are substituted or unsubstituted.
- substituents selected from the group consisting of an aryl group, a silyl group, an alkyl group, a cycloalkyl group and an arylamino group are substituted or unsubstituted.
- the metal complex includes an iridium complex, a platinum complex, and the like, but is not limited thereto.
- the electron injection and transport layer is a layer that simultaneously serves as an electron transport layer and an electron injection layer for injecting electrons from the electrode and transporting the received electrons to the emission layer, and is formed on the emission layer or the electron control layer.
- the electron injection and transport material a material capable of receiving electrons from the cathode and transferring them to the light emitting layer is suitable, and a material having high electron mobility is suitable.
- Specific examples of the electron injection and transport material include Al complex of 8-hydroxyquinoline; complexes containing Alq 3 ; organic radical compounds; hydroxyflavone-metal complexes; and triazine derivatives, but is not limited thereto.
- the metal complex compound examples 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-crezolato)gallium, bis(2-methyl-8-quinolinato)(1-naphtolato)aluminum, bis(2-methyl-8-quinolinato)(2-naphtolato)gallium, etc.
- the present invention is not limited thereto.
- the organic light emitting device according to the present invention may be a top emission type, a back emission type, or a double side emission type depending on the material used.
- the compound according to the present invention may be included in an organic solar cell or an organic transistor in addition to the organic light emitting device.
- Compound 2 was prepared in the same manner as in the preparation of Compound 1, except that Compound 2-a was used instead of Compound 1-g.
- Compound 3 was prepared in the same manner as in the preparation of Compound 1, except that Compound 3-a was used instead of Compound 1-g.
- compound 4 was prepared in the same manner as in the preparation method of compound 1, except that compound 4-c was used instead of compound 1-g.
- Compound 5 was prepared in the same manner as in the preparation of Compound 4, except that Compound 5-a was used instead of Compound 4-a.
- Compound 6 was prepared in the same manner as in the preparation of Compound 1, except that Compound 6-a was used instead of Compound 1-g.
- Compound 7 was prepared in the same manner as in the preparation method of Compound 1, except that Compound 7-a was used instead of Compound 1-g.
- Compound 8 was prepared in the same manner as in the preparation of Compound 1, except that Compound 8-a was used instead of Compound 1-g.
- Compound 9 was prepared in the same manner as in the preparation of Compound 1, except that Compound 9-a was used instead of Compound 1-g.
- Compound 11 was prepared in the same manner as in the preparation of Compound 10, except that Compound 11-a was used instead of Compound 10-c.
- Compound 12 was prepared in the same manner as in the preparation of Compound 10, except that Compound 12-a was used instead of Compound 10-c.
- Compound 13 was prepared in the same manner as in the preparation of Compound 10, except that Compound 13-a was used instead of Compound 10-c.
- compound 15 was prepared in the same manner as in the preparation method of compound 14, except that compound 15-b was used instead of compound 14-b.
- compound 16 was prepared in the same manner as in the preparation method of compound 14, except that compound 16-c was used instead of compound 14-b.
- Compound 17 was prepared in the same manner as in the preparation of compound 14, except that compound 17-a was used instead of compound 14-c.
- Compound 18 was prepared in the same manner as in the preparation of Compound 14, except that Compound 18-a was used instead of Compound 14-c.
- Compound G was prepared in the same manner as in Comparative Example 1, except that Compound G-1 was used instead of Compound 1-a.
- a glass substrate coated with indium tin oxide (ITO) to a thickness of 500 ⁇ was placed in distilled water in which detergent was dissolved and washed with ultrasonic waves.
- ITO indium tin oxide
- a product manufactured by Fischer Co. was used as the detergent
- distilled water that was secondarily filtered with a filter manufactured by Millipore Co. was used as the distilled water.
- ultrasonic washing was performed for 10 minutes by repeating twice with distilled water.
- ultrasonic cleaning was performed with a solvent of isopropyl and acetone and dried. After washing the substrate for 5 minutes, the substrate was transported to a glove box.
- spin coating (4000 rpm) a coating composition in which the following compound O and compound P (weight ratio of 2:8) were dissolved in cyclohexanone at 20 wt/v%, and heat treatment (curing) at 200°C for 30 minutes ) to form a hole injection layer with a thickness of 400 ⁇ .
- a coating composition in which the following compound Q (Mn: 27,900; Mw: 35,600; measured by GPC using PC Standard using Agilent 1200 series) was dissolved in toluene at 6 wt/v% was spin-coated (4000 rpm) and heat treatment at 200° C. for 30 minutes to form a hole transport layer having a thickness of 200 ⁇ .
- the deposition rate of the organic material was maintained at 0.4 to 0.7 ⁇ /sec, the deposition rate of 0.3 ⁇ /sec for LiF and 2 ⁇ /sec for aluminum was maintained, and the vacuum degree during deposition was 2*10 -7 to 5 *10 -8 torr was maintained.
- An organic light emitting device was manufactured in the same manner as in Example 1, except that the compound shown in Table 1 was used instead of Compound 1 as the dopant of the light emitting layer.
- An organic light emitting diode was manufactured in the same manner as in Example 1, except that the compound shown in Table 1 was used instead of Compound 1 as the dopant of the emission layer.
- the organic light emitting device including the compound of the present invention in the light emitting layer exhibited excellent characteristics in terms of efficiency, driving voltage, and lifespan of the organic light emitting device.
- Substrate 2 Anode
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Abstract
Description
| 구분 | 발광층 도펀트 |
구동전압 (V @10mA/cm2) |
EQE (% @10mA/cm2) |
수명(T90) (hr @500 nit) |
| 실시예 1 | 화합물 1 | 4.80 | 7.02 | 208 |
| 실시예 2 | 화합물 2 | 4.79 | 7.03 | 202 |
| 실시예 3 | 화합물 3 | 4.73 | 6.89 | 209 |
| 실시예 4 | 화합물 4 | 4.69 | 6.87 | 210 |
| 실시예 5 | 화합물 5 | 4.72 | 7.00 | 198 |
| 실시예 6 | 화합물 6 | 4.73 | 6.93 | 187 |
| 실시예 7 | 화합물 7 | 4.76 | 6.98 | 199 |
| 실시예 8 | 화합물 8 | 4.72 | 6.87 | 200 |
| 실시예 9 | 화합물 9 | 4.75 | 6.82 | 195 |
| 실시예 10 | 화합물 10 | 4.70 | 6.85 | 189 |
| 실시예 11 | 화합물 11 | 4.71 | 6.94 | 193 |
| 실시예 12 | 화합물 12 | 4.74 | 7.02 | 196 |
| 실시예 13 | 화합물 13 | 4.75 | 7.09 | 203 |
| 실시예 14 | 화합물 14 | 4.76 | 6.88 | 205 |
| 실시예 15 | 화합물 15 | 4.75 | 6.89 | 195 |
| 실시예 16 | 화합물 16 | 4.79 | 6.92 | 200 |
| 실시예 17 | 화합물 17 | 4.68 | 6.96 | 207 |
| 실시예 18 | 화합물 18 | 4.73 | 6.95 | 215 |
| 실시예 19 | 화합물 19 | 4.69 | 7.06 | 206 |
| 실시예 20 | 화합물 20 | 4.72 | 7.09 | 214 |
| 실시예 21 | 화합물 21 | 4.71 | 7.10 | 218 |
| 비교예 1 | 화합물 F | 4.69 | 4.39 | 105 |
| 비교예 2 | 화합물 G | 4.68 | 4.23 | 99 |
| 비교예 3 | 화합물 H | 4.62 | 3.98 | 83 |
Claims (22)
- 제1항에 있어서,상기 화학식 1은 하기 화학식 1'로 표시되는,화합물:[화학식 1']상기 화학식 1'에서,n은 1 내지 4의 정수이고,R1은 각각 독립적으로 수소, 중수소, 할로겐, 시아노, 치환 또는 비치환된 C1-60 알킬, 치환 또는 비치환된 C6-60 아릴, 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C2-60 헤테로아릴, 또는 하기 화학식 2로 표시되는 치환기이거나; 또는 인접한 두 개의 R1이 서로 결합하여 치환 또는 비치환된 C3-10 사이클로알킬을 형성하고,R2는 각각 독립적으로 수소, 중수소, 할로겐, 시아노, 치환 또는 비치환된 C1-60 알킬, 치환 또는 비치환된 C6-60 아릴, 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C2-60 헤테로아릴, 또는 하기 화학식 2로 표시되는 치환기이거나; 또는 인접한 두 개의 R2이 서로 결합하여 치환 또는 비치환된 C3-10 사이클로알킬, 또는 치환 또는 비치환된 C6-60 방향족 고리를 형성하고,R3는 각각 독립적으로 수소, 중수소, 할로겐, 시아노, 치환 또는 비치환된 C1-60 알킬, 치환 또는 비치환된 C6-60 아릴, 또는 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C2-60 헤테로아릴이거나; 또는 인접한 두 개의 R3가 서로 결합하여 치환 또는 비치환된 C3-10 사이클로알킬, 또는 -O-(CH2)m-O-를 형성하고, 여기서 m은 1 내지 4의 정수이고,R4는 수소, 중수소, 치환 또는 비치환된 C1-60 알킬, 치환 또는 비치환된 C3-60 사이클로알킬, 치환 또는 비치환된 C6-60 아릴, 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C2-60 헤테로아릴, 또는 하기 화학식 2로 표시되는 치환기이고,R5는 수소, 중수소, 치환 또는 비치환된 C1-60 알킬, 치환 또는 비치환된 C3-60 사이클로알킬, 치환 또는 비치환된 C6-60 아릴, 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C2-60 헤테로아릴이고,[화학식 2]상기 화학식 2에서,L은 단일 결합, 또는 치환 또는 비치환된 C6-60 아릴렌이고,L1 및 L2는 각각 독립적으로, 단일 결합, 치환 또는 비치환된 C6-60 아릴렌, 또는 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C2-60 헤테로아릴렌이고,Ar1 및 Ar2는 각각 독립적으로, 치환 또는 비치환된 C6-60 아릴, 또는 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C2-60 헤테로아릴이고,n1은 0 내지 4의 정수이고,n2는 각각 독립적으로 0 내지 5의 정수이다.
- 제1항에 있어서,n은 1, 2, 또는 3인,화합물.
- 제2항에 있어서,n1은 1이고,R1은 수소, 중수소, 치환 또는 비치환된 C1-10 알킬, 치환 또는 비치환된 C6-10 아릴, 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C8-12 헤테로아릴, 또는 디(치환 또는 비치환된 C6-10 아릴)아미노인,화합물.
- 제2항에 있어서,n1은 1이고,R1은 수소, 중수소, 메틸, 에틸, 프로필, 이소프로필, 부틸, 이소부틸, 터트부틸, 페닐, 터트부틸로 치환된 페닐, 벤조퓨라닐, 디벤조퓨라닐, 벤조티오페닐, 디벤조티오페닐, 또는 디페닐아미노인,화합물.
- 제2항에 있어서,n1은 2이고,R1은 서로 결합하여, 치환 또는 비치환된 C5-6 사이클로알킬을 형성하는,화합물.
- 제2항에 있어서,n2는 1이고,R2는 수소, 중수소, 치환 또는 비치환된 C1-10 알킬, 치환 또는 비치환된 C6-10 아릴, 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C8-12 헤테로아릴, 또는 디(치환 또는 비치환된 C6-10 아릴)아미노인,화합물.
- 제2항에 있어서,n2은 1이고,R2는 수소, 중수소, 메틸, 에틸, 프로필, 이소프로필, 부틸, 이소부틸, 터트부틸, 페닐, 터트부틸로 치환된 페닐, 벤조퓨라닐, 디벤조퓨라닐, 벤조티오페닐, 디벤조티오페닐, 또는 디페닐아미노인,화합물.
- 제2항에 있어서,n3은 1 또는 2이고,R3은 각각 독립적으로 수소, 중수소, 치환 또는 비치환된 C1-10 알킬, 치환 또는 비치환된 C6-10 아릴, 치환 또는 비치환된 N, O 및 S로 구성되는 군으로부터 선택되는 어느 하나 이상의 헤테로원자를 포함하는 C8-12 헤테로아릴, 또는 디(치환 또는 비치환된 C6-10 아릴)아미노인,화합물.
- 제2항에 있어서,n3은 1 또는 2이고,R3은 각각 독립적으로 수소, 중수소, 메틸, 에틸, 프로필, 이소프로필, 부틸, 이소부틸, 터트부틸, 페닐, 터트부틸로 치환된 페닐, 벤조퓨라닐, 디벤조퓨라닐, 벤조티오페닐, 디벤조티오페닐, 또는 디페닐아미노인,화합물.
- 제2항에 있어서,n3은 2이고,R3은 서로 결합하여, 치환 또는 비치환된 C5-6 사이클로알킬, 또는 -O-(CH2)m-O-를 형성하고, 여기서 m은 1 내지 3의 정수인,화합물.
- 제2항에 있어서,R4는 치환 또는 비치환된 C1-10 알킬, 치환 또는 비치환된 C6-30 아릴, 또는 상기 화학식 2로 표시되는 치환기인,화합물.
- 제2항에 있어서,R5는 수소, 중수소, 치환 또는 비치환된 C1-10 알킬, 또는 치환 또는 비치환된 C6-10 아릴인,화합물.
- 제2항에 있어서,R5는 수소, 중수소, 또는 페닐인,화합물.
- 제1 전극; 상기 제1 전극과 대향하여 구비된 제2 전극; 및 상기 제1 전극과 상기 제2 전극 사이에 구비된 1층 이상의 유기물층을 포함하는 유기 발광 소자로서, 상기 유기물층 중 1층 이상은 제1항 내지 제20항 중 어느 하나의 항에 따른 화합물을 포함하는 것인, 유기 발광 소자.
- 제21항에 있어서,상기 화합물을 포함하는 유기물층은 발광층인,유기 발광 소자.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/274,400 US20240116954A1 (en) | 2021-03-09 | 2022-03-08 | Compound And Organic Light Emitting Device Comprising The Same |
| EP22767457.9A EP4273151B1 (en) | 2021-03-09 | 2022-03-08 | Novel compound and organic light emitting device using same |
| JP2023543198A JP7601461B2 (ja) | 2021-03-09 | 2022-03-08 | 新規な化合物およびこれを利用した有機発光素子 |
| CN202280010503.XA CN116783206A (zh) | 2021-03-09 | 2022-03-08 | 新的化合物和包含其的有机发光器件 |
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| KR10-2021-0030815 | 2021-03-09 | ||
| KR1020210030815A KR102749489B1 (ko) | 2021-03-09 | 2021-03-09 | 신규한 화합물 및 이를 이용한 유기 발광 소자 |
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| WO2022191561A1 true WO2022191561A1 (ko) | 2022-09-15 |
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| PCT/KR2022/003230 Ceased WO2022191561A1 (ko) | 2021-03-09 | 2022-03-08 | 신규한 화합물 및 이를 이용한 유기 발광 소자 |
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| Country | Link |
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| US (1) | US20240116954A1 (ko) |
| EP (1) | EP4273151B1 (ko) |
| JP (1) | JP7601461B2 (ko) |
| KR (1) | KR102749489B1 (ko) |
| CN (1) | CN116783206A (ko) |
| WO (1) | WO2022191561A1 (ko) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023043299A1 (en) | 2021-09-20 | 2023-03-23 | Samsung Display Co., Ltd. | Organic molecules for optoelectronic devices |
| JP2024509321A (ja) * | 2021-09-17 | 2024-02-29 | 出光興産株式会社 | 化合物、有機エレクトロルミネッセンス素子の材料、有機エレクトロルミネッセンス素子、電子機器、発光層、及び化合物の使用 |
| WO2024185711A1 (ja) * | 2023-03-03 | 2024-09-12 | 出光興産株式会社 | 化合物、有機エレクトロルミネッセンス素子用材料、有機エレクトロルミネッセンス素子及び電子機器 |
| EP4497802A1 (en) | 2023-07-25 | 2025-01-29 | Idemitsu Kosan Co., Ltd | Compound and an organic electroluminescence device comprising the compound |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20220126479A (ko) * | 2021-03-09 | 2022-09-16 | 주식회사 엘지화학 | 신규한 화합물 및 이를 이용한 유기 발광 소자 |
| KR102858771B1 (ko) * | 2021-03-09 | 2025-09-10 | 주식회사 엘지화학 | 신규한 화합물 및 이를 이용한 유기 발광 소자 |
| WO2025169839A1 (ja) * | 2024-02-08 | 2025-08-14 | 出光興産株式会社 | 化合物、有機エレクトロルミネッセンス素子用材料、有機エレクトロルミネッセンス素子及び電子機器 |
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| JP7504308B2 (ja) | 2021-09-17 | 2024-06-21 | 出光興産株式会社 | 化合物、有機エレクトロルミネッセンス素子の材料、有機エレクトロルミネッセンス素子、電子機器、発光層、及び化合物の使用 |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR102749489B1 (ko) | 2024-12-31 |
| KR20220126480A (ko) | 2022-09-16 |
| US20240116954A1 (en) | 2024-04-11 |
| JP7601461B2 (ja) | 2024-12-17 |
| EP4273151A4 (en) | 2024-07-03 |
| EP4273151A1 (en) | 2023-11-08 |
| EP4273151B1 (en) | 2026-04-29 |
| CN116783206A (zh) | 2023-09-19 |
| JP2024502895A (ja) | 2024-01-23 |
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