WO2015178740A2 - 헤테로환 화합물 및 이를 포함하는 유기발광소자 - Google Patents
헤테로환 화합물 및 이를 포함하는 유기발광소자 Download PDFInfo
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- WO2015178740A2 WO2015178740A2 PCT/KR2015/005212 KR2015005212W WO2015178740A2 WO 2015178740 A2 WO2015178740 A2 WO 2015178740A2 KR 2015005212 W KR2015005212 W KR 2015005212W WO 2015178740 A2 WO2015178740 A2 WO 2015178740A2
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- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
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- 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
- H10K85/654—Aromatic compounds comprising a hetero atom comprising only nitrogen as heteroatom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
- C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D495/04—Ortho-condensed systems
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H—ELECTRICITY
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Definitions
- organic light emitting phenomenon refers to a phenomenon of converting electrical energy into light energy using an organic material.
- An organic light emitting device using an organic light emitting phenomenon usually has a structure including an anode, a cathode, and an organic material layer therebetween.
- the organic material layer is often made of a multi-layered structure composed of different materials to increase the efficiency and stability of the organic light emitting device, for example, it may be made of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer.
- An object of the present specification is to provide a heterocyclic compound and an organic light emitting device including the same.
- An exemplary embodiment of the present specification provides a heterocyclic compound represented by Formula 1 below.
- X and Y are each independently O or S,
- R1 to R12 are each independently hydrogen; heavy hydrogen; Halogen group; Nitrile group; Nitro group; Hydroxyl group; Substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; Substituted or unsubstituted alkoxy group; Substituted or unsubstituted aryloxy group; Substituted or unsubstituted alkylthioxy group; Substituted or unsubstituted arylthioxy group; Substituted or unsubstituted alkyl sulfoxy group; Substituted or unsubstituted aryl sulfoxy group; Substituted or unsubstituted aryl group; A substituted or unsubstituted fluorenyl group; Substituted or unsubstituted carbazole group; Or a substituted or unsubstituted heterocyclic group containing one or more
- R1 to R4 are each independently represented by-(L) n-A,
- n is an integer of 0 to 4,
- L is a substituted or unsubstituted arylene group; And at least one selected from the group consisting of a substituted or unsubstituted divalent heterocyclic group including one or more of N, O and S atoms, and when n is 2 to 4, a plurality of Ls are the same as each other or Can be different,
- A is a substituted or unsubstituted monocyclic heterocyclic group containing one or more N; Or a substituted or unsubstituted triphenylene group.
- an exemplary embodiment of the present specification includes a first electrode; A second electrode provided to face the first electrode; And one or more organic material layers including a light emitting layer provided between the first electrode and the second electrode.
- an organic light emitting device in which at least one layer of the organic material layer includes the heterocyclic compound.
- the new compound according to the present specification may be used as a material of an organic material layer of an organic light emitting device, and by using the same, it is possible to improve efficiency, low driving voltage, and / or lifetime characteristics in the organic light emitting device.
- FIG. 1 illustrates an example of an organic light emitting device including a substrate 101, an anode 201, a light emitting layer 301, and a cathode 401.
- FIG. 2 shows a substrate 101, an anode 201, a hole injection layer 501, a hole transport layer 601, a light emitting layer 301, an electron transport layer 701, an electron injection layer 801, and a cathode 401.
- An example of an organic light emitting device is shown.
- An exemplary embodiment of the present specification provides a compound represented by Chemical Formula 1.
- substituted or unsubstituted is hydrogen; Halogen group; Nitrile group; Nitro group; Hydroxyl group; An alkyl group; Cycloalkyl group; Alkenyl groups; Amine groups; Alkylamine group; Aralkyl amine groups; Arylamine group; Heteroarylamine group; Aryl group; Fluorenyl group; Carbazole groups; And one or more substituents selected from the group consisting of a heterocyclic group including one or more of N, O, and S atoms, or two or more substituents among the above-described substituents are substituted with a linked substituent, or have no substituents. Means that.
- a substituent to which two or more substituents are linked may be a biphenyl group. That is, the biphenyl group may be an aryl group or may be interpreted as a substituent to which two phenyl groups are linked.
- substituted means that a hydrogen atom bonded to a carbon atom of the compound is replaced with another substituent, and the position to be substituted is not limited to a position where the hydrogen atom is substituted, that is, a position where a substituent can be substituted, if two or more substituted , Two or more substituents may be the same or different from each other.
- examples of the halogen group include fluorine, chlorine, bromine or iodine.
- the alkyl group may be linear or branched chain, carbon number is not particularly limited, but is preferably 1 to 50.
- Specific 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-o
- the cycloalkyl group is not particularly limited, but preferably 3 to 60 carbon atoms, specifically, cyclopropyl, cyclobutyl, cyclopentyl, 3-methylcyclopentyl, 2,3-dimethylcyclopentyl, cyclohexyl, 3-methylcyclohexyl, 4-methylcyclohexyl, 2,3-dimethylcyclohexyl, 3,4,5-trimethylcyclohexyl, 4-tert-butylcyclohexyl, cycloheptyl, cyclooctyl, and the like, but are not limited thereto. Do not.
- the alkoxy group may be linear, branched or cyclic. Although carbon number of an alkoxy group is not specifically limited, It is preferable that it is C1-C20. Specifically, methoxy, ethoxy, n-propoxy, isopropoxy, i-propyloxy, n-butoxy, isobutoxy, tert-butoxy, sec-butoxy, n-pentyloxy, neopentyloxy, Isopentyloxy, n-hexyloxy, 3,3-dimethylbutyloxy, 2-ethylbutyloxy, n-octyloxy, n-nonyloxy, n-decyloxy, benzyloxy, p-methylbenzyloxy and the like It may be, but is not limited thereto.
- the alkenyl group may be linear or branched chain, the carbon number is not particularly limited, but is preferably 2 to 40.
- 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 aryl group may be a monocyclic aryl group or a polycyclic aryl group, and includes a case where an alkyl group having 1 to 25 carbon atoms or an alkoxy group having 1 to 25 carbon atoms is substituted.
- the aryl group in the present specification may mean an aromatic ring.
- the aryl group is a monocyclic aryl group
- carbon number is not particularly limited, but preferably 6 to 25 carbon atoms.
- the monocyclic aryl group may be a phenyl group, biphenyl group, terphenyl group, stilbenyl group and the like, but is not limited thereto.
- Carbon number is not particularly limited when the aryl group is a polycyclic aryl group. It is preferable that it is C10-24.
- the polycyclic aryl group may be a naphthyl group, anthracenyl group, phenanthrenyl group, triphenylene group, pyrenyl group, perrylenyl group, chrysenyl group, fluoranthene group, fluorenyl group, etc., but is not limited thereto. It is not.
- the fluorenyl group may be substituted, and two substituents may be bonded to each other to form a spiro structure.
- the silyl group includes trimethylsilyl group, triethylsilyl group, t-butyldimethylsilyl group, vinyldimethylsilyl group, propyldimethylsilyl group, triphenylsilyl group, diphenylsilyl group, phenylsilyl group, and the like.
- the present invention is not limited thereto.
- the amine group is not particularly limited, but is preferably 1 to 30.
- Specific examples of the amine group include methylamine group, dimethylamine group, ethylamine group, diethylamine group, phenylamine group, naphthylamine group, biphenylamine group, anthracenylamine group, and 9-methyl-anthracenylamine group.
- the heterocyclic group is a heterocyclic group including one or more of O, N, and S as heterologous elements, and the number of carbon atoms is not particularly limited, but is preferably 2 to 60 carbon atoms.
- the heterocyclic group 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, triazole group, 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, carbazo
- the aryl group in the aryloxy group, the arylamine group, the aralkylamine group, the heteroarylamine group, the arylthioxy group, the aryl sulfoxy group and the aryl alkenyl is the same as the examples of the aryl group described above.
- aryloxy group phenoxy, p-tolyloxy, m-tolyloxy, 3,5-dimethyl-phenoxy, 2,4,6-trimethylphenoxy, p-tert-butylphenoxy, 3-biphenyl Oxy, 4-biphenyloxy, 1-naphthyloxy, 2-naphthyloxy, 4-methyl-1-naphthyloxy, 5-methyl-2-naphthyloxy, 1-anthryloxy, 2-anthryl Oxy, 9-anthryloxy, 1-phenanthryloxy, 3-phenanthryloxy, 9-phenanthryloxy, and the like.
- arylthioxy group examples include a phenylthioxy group, 2-methylphenylthioxy group, and 4-tert-butylphenyl.
- Thioxy groups and the like, and aryl sulfoxy groups include, but are not limited to, benzene sulfoxy groups and p-toluene sulfoxy groups.
- the alkyl group in the alkylthioxy group, the aralkylamine group and the alkyl sulfoxy group is the same as the examples of the alkyl group described above.
- the alkyl thioxy group includes a methyl thioxy group, an ethyl thioxy group, a tert-butyl thioxy group, a hexyl thioxy group, an octyl thioxy group
- the alkyl sulfoxy group includes mesyl, ethyl sulfoxy, propyl sulfoxy and butyl sulfoxy groups. Etc., but is not limited thereto.
- the arylene group refers to a divalent group having two bonding positions in the aryl group.
- the description of the aforementioned aryl group can be applied except that they are each divalent.
- X may be O.
- the R2 or R3 is represented by-(L) n -A,
- n 0 or 1
- L is a substituted or unsubstituted phenylene group; A substituted or unsubstituted biphenylene group; A substituted or unsubstituted divalent naphthalene group; Or a substituted or unsubstituted anthracenylene group,
- A is a substituted or unsubstituted heterocyclic group; Or a substituted or unsubstituted aryl group.
- R5 and R6 may be a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.
- R5 and R6 may be a methyl group.
- R10 is hydrogen; Or a substituted or unsubstituted aryl group having 6 to 20 carbon atoms.
- R10 is hydrogen; Substituted or unsubstituted phenyl group; A substituted or unsubstituted biphenyl group; Or a substituted or unsubstituted naphthyl group.
- A is a substituted or unsubstituted pyridine group; Substituted or unsubstituted pyrimidine group; Substituted or unsubstituted pyridazine group; Substituted or unsubstituted pyrazine group; Substituted or unsubstituted triazine group; Substituted or unsubstituted tetrazine group; Penazine group; Substituted or unsubstituted carbazole group; Substituted or unsubstituted dibenzofuranyl group; Substituted or unsubstituted dibenzothiophene group; Substituted or unsubstituted phenyl group; A substituted or unsubstituted biphenyl group; Substituted or unsubstituted naphthyl group; Substituted or unsubstituted
- A is a substituted or unsubstituted triazine group; Substituted or unsubstituted pyrimidine group; Substituted or unsubstituted carbazole group; Substituted or unsubstituted dibenzofuranyl group; Substituted or unsubstituted dibenzothiophene group; Substituted or unsubstituted phenyl group; A substituted or unsubstituted biphenyl group; Substituted or unsubstituted naphthyl group; Substituted or unsubstituted phenanthrenyl group; Substituted or unsubstituted anthracenyl group; A substituted or unsubstituted fluorenyl group; Substituted or unsubstituted spirobifluorenyl group; Substituted or unsubstituted fluoranthen
- the additional substituent is a halogen group; An alkyl group having 1 to 10 carbon atoms; Aryl groups having 6 to 20 carbon atoms; And it may be substituted with one or more substituents selected from the group consisting of heterocyclic group containing one or more of N, O and S as a hetero atom having 2 to 20 carbon atoms.
- A when A is further substituted, it may be substituted with a phenyl group.
- R2 may be a substituted or unsubstituted triazine group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted triazine group.
- R2 may be a substituted or unsubstituted pyrimidine group.
- R2 may be a substituted or unsubstituted pyrimidine substituted phenyl group.
- R2 may be a substituted or unsubstituted carbazole group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted carbazole group.
- R2 may be a substituted or unsubstituted dibenzofuranyl group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted dibenzofuranyl group.
- R2 may be a substituted or unsubstituted dibenzothiophene group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted dibenzothiophene group.
- R2 may be a substituted or unsubstituted phenyl group.
- R2 may be a substituted or unsubstituted naphthyl group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted naphthyl group.
- R2 may be a naphthyl group substituted with a substituted or unsubstituted naphthyl group.
- R2 may be a substituted or unsubstituted phenanthrenyl group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted phenanthrenyl group.
- R2 may be a substituted or unsubstituted anthracenyl group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted anthracenyl group.
- R2 may be a substituted or unsubstituted fluorenyl group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted fluorenyl group.
- R2 may be a substituted or unsubstituted spirobifluorenyl group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted spirobifluorenyl group.
- R2 may be a substituted or unsubstituted fluoranthene group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted fluoranthene group.
- R2 may be a substituted or unsubstituted triphenylene group.
- R2 may be a phenyl group substituted with a substituted or unsubstituted triphenylene group.
- R3 may be a substituted or unsubstituted triazine group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted triazine group.
- R3 may be a substituted or unsubstituted pyrimidine group.
- R3 may be a substituted or unsubstituted pyrimidine substituted phenyl group.
- R3 may be a substituted or unsubstituted carbazole group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted carbazole group.
- R3 may be a substituted or unsubstituted dibenzofuranyl group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted dibenzofuranyl group.
- R3 may be a substituted or unsubstituted dibenzothiophene group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted dibenzothiophene group.
- R3 may be a substituted or unsubstituted phenyl group.
- R3 may be a substituted or unsubstituted naphthyl group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted naphthyl group.
- R3 may be a naphthyl group substituted with a substituted or unsubstituted naphthyl group.
- R3 may be a substituted or unsubstituted phenanthrenyl group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted phenanthrenyl group.
- R3 may be a substituted or unsubstituted anthracenyl group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted anthracenyl group.
- R3 may be a substituted or unsubstituted fluorenyl group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted fluorenyl group.
- R3 may be a substituted or unsubstituted spirobifluorenyl group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted spirobifluorenyl group.
- R3 may be a substituted or unsubstituted fluoranthene group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted fluoranthene group.
- R3 may be a substituted or unsubstituted triphenylene group.
- R3 may be a phenyl group substituted with a substituted or unsubstituted triphenylene group.
- the compound represented by Formula 1 may be represented by the following formula 1-1 or 1-2.
- R1 to R4 and R7 to R12 in Chemical Formulas 1-1 and 1-2 are the same as defined in Chemical Formula 1.
- -(L) n-A may be a substituent of any one of the following substituents 1-1 to 1-41 substituted or unsubstituted.
- the present invention is not limited thereto.
- the additional substituent is a halogen group; An alkyl group having 1 to 10 carbon atoms; Aryl groups having 6 to 20 carbon atoms; And it may be substituted with one or more substituents selected from the group consisting of heterocyclic group containing one or more of N, O and S as a hetero atom having 2 to 20 carbon atoms.
- the compound represented by Chemical Formula 1 may be a compound represented by any one of the following Chemical Formulas 2-1 to 2-81. However, the present invention is not limited thereto.
- a general synthesis example of the compound represented by Formula 1 may be as follows.
- the general synthesis example uses the compound represented by Q and the benzoate-based compound to generate the compound represented by K through ring closing reaction, and further, The compound represented by L may be prepared using a halide.
- the compound represented by Chemical Formula 1 may be prepared by adjusting various substituents or substitution positions as necessary.
- One embodiment of the present specification provides an organic light emitting device comprising the heterocyclic compound.
- An exemplary embodiment of the present specification includes a first electrode; A second electrode provided to face the first electrode; And an organic light emitting device including at least one organic material layer including a light emitting layer provided between the first electrode and the second electrode, wherein at least one of the organic material layers includes the heterocyclic compound. to provide.
- the organic material layer of the organic light emitting device of the present specification may be formed of a single layer structure, but may be formed of a multilayer structure in which two or more organic material layers are stacked.
- the organic light emitting device of the present specification 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 and the like 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 includes a hole transport layer, a hole injection layer, or a layer for simultaneously injecting holes and holes, and simultaneously transporting the hole transport layer, the hole injection layer, or the hole injection and the hole transport.
- the layer may include the heterocyclic compound.
- the light emitting layer may include the heterocyclic compound.
- the heterocyclic compound may be a light emitting host.
- the organic material layer includes an electron transport layer, an electron injection layer, or a layer for simultaneously transporting and transporting electrons, and the electron transport layer, an electron injection layer, or a layer for simultaneously transporting and transporting electrons. It may include the heterocyclic compound.
- the electron transport layer, the electron injection layer or the layer at the same time the electron transport and electron injection may include only the heterocyclic compound.
- the organic material layer may further include a hole injection layer or a hole transport layer including a compound including an arylamino group, a carbazole group, or a benzocarbazole group in addition to the organic material layer including the heterocyclic compound.
- the organic material layer including the heterocyclic compound may include the heterocyclic compound as a host, and may include another organic compound, a metal, or a metal compound as a dopant.
- the organic material layer may include an electron blocking layer, and the electron blocking layer may include the heterocyclic compound.
- the organic material layer is one or two or more layers selected from the group consisting of a hole injection layer, a hole transport layer, an electron blocking layer, a charge generating layer, a hole blocking layer, an electron transport layer, and an electron injection layer. It may further include.
- the organic light emitting diode may be an organic light emitting diode having a structure in which an anode, one or more organic material layers, and a cathode are sequentially stacked on a substrate.
- the organic light emitting diode may be an organic light emitting diode having 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 the exemplary embodiment of the present specification is illustrated in FIGS. 1 and 2.
- FIG. 1 illustrates an example of an organic light emitting device including a substrate 101, an anode 201, a light emitting layer 301, and a cathode 401.
- the heterocyclic compound may be included in the emission layer 301.
- the heterocyclic compound may be included in one or more layers of the hole injection layer 501, the hole transport layer 601, the light emitting layer 301, the electron transport layer 701, and the electron injection layer 801. have.
- the organic light emitting device of the present specification 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 of the present specification, that is, the heterocyclic compound.
- the organic material layers may be formed of the same material or different materials.
- the organic light emitting device of the present specification may be manufactured by materials and methods known in the art, except that at least one layer of the organic material layer includes the heterocyclic compound, that is, the compound represented by Chemical Formula 1.
- the organic light emitting device of the present specification may be manufactured by sequentially stacking a first electrode, an organic material layer, and a second electrode on a substrate.
- the anode is formed by depositing a metal or conductive metal oxide or an alloy thereof on the substrate by 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 transporting layer, a light emitting layer, and an electron transporting layer thereon, and then depositing a material that can be used as a cathode thereon.
- an organic light emitting device may be manufactured by sequentially depositing a cathode material, an organic material layer, and an anode material on a substrate.
- the compound of Formula 1 may be formed of an organic material layer by a solution coating method as well as a vacuum deposition method in the manufacture of the organic light emitting device.
- the solution coating method means spin coating, dip coating, doctor blading, inkjet printing, screen printing, spray method, roll coating, etc., but is not limited thereto.
- an organic light emitting device may be manufactured by sequentially depositing an organic material layer and an anode material on a substrate (International Patent Application Publication No. 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 to facilitate hole injection into the organic material layer.
- anode materials that can be used in the present invention include metals such as vanadium, chromium, copper, zinc, gold or alloys thereof; Metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), indium zinc oxide (IZO); ZnO: Al or SNO 2 : Combination of metals and oxides such as Sb; Conductive polymers such as poly (3-methylthiophene), poly [3,4- (ethylene-1,2-dioxy) thiophene] (PEDOT), polypyrrole and polyaniline, and the like, but are not limited thereto.
- the cathode material is generally a material having a small work function to facilitate electron injection into the organic material layer.
- Specific examples of the cathode materials include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin and lead or alloys thereof; Multilayer structure materials such as LiF / Al or LiO 2 / Al, and the like, but are not limited thereto.
- the hole injection material is a layer for injecting holes from an electrode, and the hole injection material has a capability of transporting holes, and has a hole injection effect at the anode, an excellent hole injection effect for the light emitting layer or the light emitting material, and is generated in the light emitting layer.
- the compound which prevents the movement of the excited excitons to the electron injection layer or the electron injection material, and is excellent in thin film formation ability is preferable.
- 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.
- 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 materials, anthraquinone, 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 to the light emitting layer.
- the hole transport material is a material capable of transporting holes from the anode or the hole injection layer to the light emitting layer.
- the material is suitable. Specific examples thereof include an arylamine-based organic material, a conductive polymer, and a block copolymer having a conjugated portion and a non-conjugated portion together, but are not limited thereto.
- the light emitting material is a material capable of emitting light in the visible region by transporting and combining holes and electrons from the hole transport layer and the electron transport layer, respectively, and a material having good quantum efficiency with respect to fluorescence or phosphorescence is preferable.
- Specific examples thereof include 8-hydroxyquinoline aluminum complex (Alq 3 ); Carbazole series compounds; Dimerized styryl compounds; BAlq; 10-hydroxybenzoquinoline-metal compound; Benzoxazole, benzthiazole and benzimidazole series compounds; Poly (p-phenylenevinylene) (PPV) -based polymers; Spiro compounds; Polyfluorene, rubrene and the like, but are not limited thereto.
- the light emitting layer may include a host material and a dopant material.
- the host material is a condensed aromatic ring derivative or a heterocyclic containing compound.
- the condensed aromatic ring derivatives include anthracene derivatives, pyrene derivatives, naphthalene derivatives, pentacene derivatives, phenanthrene compounds, and fluoranthene compounds
- the heterocyclic containing compounds include carbazole derivatives, dibenzofuran derivatives and ladder types. Furan compounds, pyrimidine derivatives, and the like, but are not limited thereto.
- Dopant materials include organic compounds, metals or metal compounds.
- Organic compounds as dopant materials include aromatic amine derivatives, styrylamine compounds, boron complexes, fluoranthene compounds and the like.
- the aromatic amine derivatives include condensed aromatic ring derivatives having a substituted or unsubstituted arylamino group, and include pyrene, anthracene, chrysene, and periplanthene having an arylamino group, and a styrylamine compound may be substituted or unsubstituted.
- At least one arylvinyl group is substituted with the substituted 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.
- styrylamine, styryldiamine, styryltriamine, styryltetraamine and the like but is not limited thereto.
- a metal complex may be used as the metal or the metal compound.
- the metal complex includes, but is not limited to, an iridium complex, a platinum complex, and the like.
- the electron transporting material is a layer for receiving electrons from the electron injection layer and transporting electrons to the light emitting layer.
- the electron transporting material is a material that can inject electrons well from the cathode and transfer them to the light emitting layer. This is suitable. Specific examples thereof include Al complexes of 8-hydroxyquinoline; Complexes including Alq3; Organic radical compounds; Hydroxyflavone-metal complexes and the like, but are not limited thereto.
- the electron transport layer can be used with any desired cathode material as used in accordance with the prior art.
- suitable cathode materials are conventional materials having a low work function followed by an aluminum or silver layer. Specifically cesium, barium, calcium, ytterbium and samarium, followed by aluminum layers or silver layers in each case.
- the electron injection layer is a layer that injects electrons from an electrode, has an ability to transport electrons, has an electron injection effect from a cathode, an electron injection effect with respect to a light emitting layer or a light emitting material, and hole injection of excitons generated in the light emitting layer
- the compound which prevents the movement to a layer and is excellent in thin film formation ability is preferable.
- fluorenone anthraquinodimethane, diphenoquinone, thiopyran dioxide, oxazole, oxadiazole, triazole, imidazole, perylenetetracarboxylic acid, preorenylidene methane, anthrone and the like and derivatives thereof, metal Complex compounds, nitrogen-containing five-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) ( o-cresolato) gallium, bis (2-methyl-8-quinolinato) (1-naphtolato) aluminum, bis (2-methyl-8-quinolinato) (2-naphtolato) gallium, It is not limited to this.
- the hole blocking layer is a layer for preventing the cathode from reaching the hole, and may be generally formed under the same conditions as the hole injection layer. Specifically, there are oxadiazole derivatives, triazole derivatives, phenanthroline derivatives, BCP, aluminum complexes, and the like, but are not limited thereto.
- the electron blocking layer is a layer that serves to improve the probability of recombination of electrons and holes by blocking electrons while transporting holes.
- a material having a function of transporting holes and having a small ability to transport electrons is Suitable.
- the above-described material of the hole transport layer may be used if necessary, and the electronic blocking layer is not limited thereto.
- the organic light emitting device may be a top emission type, a bottom emission type, or a double-sided emission type according to a material used.
- the heterocyclic compound may be included in an organic solar cell or an organic transistor in addition to the organic light emitting device.
- heterocyclic compound represented by Chemical Formula 1 and the preparation of an organic light emitting device including the same will be described in detail in the following Examples. However, the following examples are intended to illustrate the present specification, and the scope of the present specification is not limited thereto.
- a glass substrate (corning 7059 glass) coated with ITO (Indium Tin Oxide) at a thickness of 1,000 kPa was placed in distilled water in which a dispersant was dissolved and washed with ultrasonic waves. Fischer Co. products were used for the detergent, and Millipore Co. Secondly filtered distilled water was used as a filter of the product. After the ITO was washed for 30 minutes, the ultrasonic cleaning was repeated twice with distilled water for 10 minutes. After washing the distilled water, the ultrasonic washing in the order of isopropyl alcohol, acetone, methanol solvent and dried.
- ITO Indium Tin Oxide
- Hexanitrile hexaazatriphenylene was thermally vacuum deposited to a thickness of 500 kPa on the prepared ITO transparent electrode to form a hole injection layer. Thereafter, HT1 (400 kPa), which is a material for transporting holes, was vacuum deposited, and then Compound 2-56 and the dopant D1 compound synthesized in Preparation Example 18 as a host were evaporated in a light emitting layer to a 300 kPa thickness. Then, E1 compound (300 kPa) was thermally vacuum deposited sequentially into the electron injection and transport layer.
- lithium fluoride LiF
- aluminum 12 ⁇ of lithium fluoride (LiF) and 2,000 ⁇ of aluminum were sequentially deposited on the electron transport layer to form a cathode, thereby manufacturing an organic light emitting device.
- the deposition rate of the organic material was maintained at 1 ⁇ / sec
- the lithium fluoride was 0.2 ⁇ / sec
- the aluminum was maintained at a deposition rate of 3 to 7 ⁇ / sec.
- the compound derivative of the formula according to the present invention can exhibit excellent properties in efficiency and driving voltage in organic electronic devices, including organic light emitting devices.
- a glass substrate (corning 7059 glass) coated with ITO (Indium Tin Oxide) at a thickness of 1,000 kPa was placed in distilled water in which a dispersant was dissolved and washed with ultrasonic waves. Fischer Co. products were used for the detergent, and Millipore Co. Secondly filtered distilled water was used as a filter of the product. After the ITO was washed for 30 minutes, the ultrasonic cleaning was repeated twice with distilled water for 10 minutes. After washing the distilled water, the ultrasonic washing in the order of isopropyl alcohol, acetone, methanol solvent and dried.
- ITO Indium Tin Oxide
- Hexonitrile hexaazatriphenylene was thermally vacuum deposited to a thickness of 500 kPa on the prepared ITO transparent electrode to form a hole injection layer.
- NPB 400 kV
- Compound 2-2 which was synthesized in Preparation Example 14 as a host, was vacuum deposited to a light emitting layer of Ir (ppy) 3 dopant at a concentration of 300 kPa at 10% concentration.
- E1 compound 200 kPa was thermally vacuum deposited sequentially into the electron injection and transport layer.
- lithium fluoride LiF
- aluminum 12 ⁇ of lithium fluoride (LiF) and 2,000 ⁇ of aluminum were sequentially deposited on the electron transport layer to form a cathode, thereby manufacturing an organic light emitting device.
- the deposition rate of the organic material was maintained at 1 ⁇ / sec
- the lithium fluoride was 0.2 ⁇ / sec
- the aluminum was maintained at a deposition rate of 3 to 7 ⁇ / sec.
- the compound derivative of the formula according to the present invention can exhibit excellent characteristics in efficiency and driving voltage in organic electronic devices, including organic light emitting devices.
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Abstract
Description
실험예 (50mA/cm2) | 호스트 물질 | 전압(V) | 전류효율(Cd/A) |
비교예 1 | H1 | 6.13 | 5.85 |
실시예 1 | 2-56 | 5.5 | 6.01 |
실시예 2 | 2-79 | 5.61 | 5.9 |
No. | 호스트(Host) | 도펀트(Dopant) | 도핑농도(%) | 구동전압(V)@5,000 cd/m2 | 발광효율(Cd/A) |
비교예 1 | H2 | Ir(ppy)3 | 10 | 5.2 | 36 |
실시예 3 | 화학식 2-2 | Ir(ppy)3 | 10 | 4.7 | 41 |
실시예 4 | 화학식 2-8 | Ir(ppy)3 | 10 | 4.9 | 40 |
실시예 5 | 화학식 2-18 | Ir(ppy)3 | 10 | 5.0 | 44 |
실시예 6 | 화학식 2-32 | Ir(ppy)3 | 10 | 5.1 | 43 |
실시예 7 | 화학식 2-76 | Ir(ppy)3 | 10 | 4.9 | 40 |
실시예 8 | 화학식 2-72및화학식 2-76 | Ir(ppy)3 | 10 | 4.5 | 41 |
Claims (13)
- 하기 화학식 1로 표시되는 헤테로환 화합물:[화학식 1]상기 화학식 1에 있어서,X 및 Y는 각각 독립적으로 O 또는 S이고,R1 내지 R12는 각각 독립적으로 수소; 중수소; 할로겐기; 니트릴기; 니트로기; 히드록시기; 치환 또는 비치환된 알킬기; 치환 또는 비치환된 시클로알킬기; 치환 또는 비치환된 알콕시기; 치환 또는 비치환된 아릴옥시기; 치환 또는 비치환된 알킬티옥시기; 치환 또는 비치환된 아릴티옥시기; 치환 또는 비치환된 알킬술폭시기; 치환 또는 비치환된 아릴술폭시기; 치환 또는 비치환된 아릴기; 치환 또는 비치환된 플루오레닐기; 치환 또는 비치환된 카바졸기; 또는 N, O 및 S 원자 중 1개 이상을 포함하는 치환 또는 비치환된 헤테로고리기이며,다만, R1 내지 R4 중 적어도 하나는 각각 독립적으로 -(L)n-A로 표시되고,n은 0 내지 4의 정수이며,L은 치환 또는 비치환된 아릴렌기; 및 N, O 및 S 원자 중 1개 이상을 포함하는 치환 또는 비치환된 2가의 헤테로고리기로 이루어진 군에서 선택되는 1종 이상을 포함하고, n이 2 내지 4인 경우 복수의 L은 서로 같거나 다를 수 있고,A는 치환 또는 비치환된 헤테로고리기; 또는 치환 또는 비치환된 아릴기이다.
- 청구항 1에 있어서,R2 또는 R3은 -(L)n-A 로 표시되고,n은 0 또는 1이며,L은 치환 또는 비치환된 페닐렌기; 치환 또는 비치환된 바이페닐렌기; 치환 또는 비치환된 2가의 나프탈렌기; 또는 치환 또는 비치환된 안트라세닐렌기이고,A는 치환 또는 비치환된 헤테로고리기; 또는 치환 또는 비치환된 아릴기인 것인 헤테로환 화합물.
- 청구항 2에 있어서,R5 및 R6은 치환 또는 비치환된 알킬기인 것인 헤테로환 화합물.
- 청구항 1에 있어서,A는 치환 또는 비치환된 피리딘기; 치환 또는 비치환된 피리미딘기; 치환 또는 비치환된 피리다진기; 치환 또는 비치환된 피라진기; 치환 또는 비치환된 트리아진기; 치환 또는 비치환된 테트라진기; 펜타진기; 치환 또는 비치환된 카바졸기; 치환 또는 비치환된 디벤조퓨라닐기; 치환 또는 비치환된 디벤조티오펜기; 치환 또는 비치환된 페닐기; 치환 또는 비치환된 바이페닐기; 치환 또는 비치환된 나프틸기; 치환 또는 비치환된 페난트레닐기; 치환 또는 비치환된 안트라세닐기; 치환 또는 비치환된 플루오레닐기; 치환 또는 비치환된 스피로비플루오레닐기; 치환 또는 비치환된 플루오란텐기; 또는 치환 또는 비치환된 트리페닐렌기인 것인 헤테로환 화합물.
- 제1 전극; 상기 제1 전극과 대향하여 구비되는 제2 전극; 및 상기 제1 전극과 상기 제2 전극 사이에 구비되는 발광층을 포함하는 1층 이상의 유기물층을 포함하는 유기발광소자로서,상기 유기물층 중 1층 이상은 청구항 1 내지 7 중 어느 한 항에 따른 헤테로환 화합물을 포함하는 것인 유기발광소자.
- 청구항 8에 있어서,상기 유기물층은 전자수송층, 전자주입층 또는 전자수송 및 전자주입을 동시에 하는 층을 포함하고,상기 전자수송층, 전자주입층 또는 전자수송 및 전자주입을 동시에 하는 층은 상기 헤테로환 화합물을 포함하는 것인 유기발광소자.
- 청구항 8에 있어서,상기 유기물층은 정공수송층, 정공주입층 또는 정공주입과 정공수송을 동시에 하는 층을 포함하고,상기 정공수송층, 정공주입층 또는 정공주입과 정공수송을 동시에 하는 층은 상기 헤테로환 화합물을 포함하는 것인 유기발광소자.
- 청구항 8에 있어서, 상기 발광층은 상기 헤테로환 화합물을 포함하는 것인 유기발광소자.
- 청구항 11에 있어서, 상기 헤테로환 화합물은 발광 호스트인 것인 유기발광소자.
- 청구항 8에 있어서, 상기 유기물층은 정공주입층, 정공수송층, 전자저지층, 전하발생층, 정공저지층, 전자수송층, 및 전자주입층으로 이루어진 군에서 선택되는 1층 또는 2층 이상을 더 포함하는 것인 유기발광소자.
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CN106414454B (zh) | 2019-09-13 |
KR20150135153A (ko) | 2015-12-02 |
WO2015178740A3 (ko) | 2016-06-16 |
US20170186966A1 (en) | 2017-06-29 |
EP3147286B1 (en) | 2019-04-03 |
TWI640527B (zh) | 2018-11-11 |
KR101764002B1 (ko) | 2017-08-02 |
TW201609746A (zh) | 2016-03-16 |
EP3147286A4 (en) | 2017-12-06 |
JP6508657B2 (ja) | 2019-05-08 |
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