WO2004096946A1 - 発光素子 - Google Patents
発光素子 Download PDFInfo
- Publication number
- WO2004096946A1 WO2004096946A1 PCT/JP2004/005941 JP2004005941W WO2004096946A1 WO 2004096946 A1 WO2004096946 A1 WO 2004096946A1 JP 2004005941 W JP2004005941 W JP 2004005941W WO 2004096946 A1 WO2004096946 A1 WO 2004096946A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- ring
- light
- examples
- substituent
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
- H10K85/346—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising platinum
-
- 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
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1011—Condensed systems
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/10—Triplet emission
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
Definitions
- the present invention relates to a light-emitting device using a novel platinum complex. More specifically, it relates to a light emitting device using a novel platinum complex that can be suitably used for display devices, displays, pack lights, electrophotography, illumination light sources, recording light sources, exposure light sources, reading light sources, signs, signs, interiors, etc. . Background art
- organic electroluminescent elements (hereinafter, abbreviated as “organic EL elements”) are promising because they can emit light with low voltage and high brightness. It is attracting attention as a next-generation display element.
- Organic EL devices have a faster response speed than conventional liquid crystals and are self-luminous devices, so they do not require a backlight unlike conventional liquid crystal display devices and are extremely thin flat panel displays. Can be formed.
- Such an organic EL element is a light emitting device utilizing electroluminescence (EL), and is similar in principle to an LED, but is characterized in that an organic compound is used as a light emitting material.
- an organic EL device using such an organic compound as a light emitting material As an example of an organic EL device using such an organic compound as a light emitting material, an organic EL device using a multilayer thin film by a vapor deposition method has been reported.
- This light-emitting element uses a conventional tris (8-hydroxyquinolineato, N) aluminum (Alq 3 ) as an electron transporting material, and is laminated with a hole transporting material (eg, an aromatic amine compound).
- a hole transporting material eg, an aromatic amine compound.
- Phosphorescence is a light emission phenomenon from a triplet excited state, and is known to exhibit higher quantum efficiency than fluorescent light emission, which is a light emission phenomenon from a singlet excited state. It is expected that high luminous efficiency can be achieved by using an organic compound having such properties as a luminescent material.
- this compound has not yet been reported in applications to light-emitting devices, modification of a ring on a ligand by a substituent, or synthesis of a derivative of the compound due to a structural change of the ring itself.
- the compound shows an ultraviolet light absorption phenomenon or a fluorescent light emission phenomenon, even if it is used for a light emitting element such as an organic EL element, it shows whether or not it shows a phosphorescent light emission phenomenon. It is not easy to imagine whether it will perform better than the element it is.
- organic EL devices using phosphorescent materials have been particularly spotlighted from the viewpoint of improving the characteristics of the devices. I have.
- the present invention has been made in view of the above problems, and has as its object to provide a light-emitting element that can be used in various fields and has good light-emitting characteristics and light-emitting efficiency. Disclosure of the invention
- the present inventors have conducted intensive studies to solve the above problems, and as a result, have found that a light-emitting element manufactured using a platinum complex having a specific structure has excellent light-emitting characteristics and light-emitting efficiency, The present invention has been completed based on this finding.
- the present invention provides a compound represented by the general formula (1):
- ring A and ring B each independently represent an aromatic ring or an aromatic heterocyclic ring which may have a substituent
- X represents an oxygen atom or a sulfur atom
- RR 2 , R 3 And R 4 each independently represents a hydrogen atom or a substituent, provided that R 1 and R 2 , R 2 and R 3 , and R 3 and R 4 may be bonded to each other to form a ring.
- the ring may be further bonded to form a condensed ring.
- the present invention relates to a light-emitting device containing at least one platinum complex represented by the formula: BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a schematic sectional view showing a layer configuration of an organic EL device. DETAILED DESCRIPTION OF THE INVENTION
- ring A and ring B each independently represent an aromatic ring or an aromatic heterocyclic ring which may have a substituent.
- the aromatic ring include a monocyclic, polycyclic or condensed aromatic ring having 6 to 14 carbon atoms, and specific examples thereof include a benzene ring, a naphthalene ring, an anthracene ring, and a phenanthrene ring.
- the substituted aromatic ring include an aromatic ring in which at least one hydrogen atom of the above aromatic ring is substituted with a substituent.
- the aromatic heterocyclic ring has, for example, 2 to 15 carbon atoms and contains at least one, preferably 1 to 3 hetero atoms such as nitrogen, oxygen, and sulfur as hetero atoms. And a 5- to 8-membered, preferably 5- or 6-membered, monocyclic, polycyclic or condensed aromatic heterocyclic ring. Specific examples include a furan ring, a thiophene ring, a pyridine ring, a pyrimidine ring, and a pyrazine ring.
- substituents examples include a hydrocarbon group, an aliphatic heterocyclic group, an aromatic heterocyclic group, a hydroxyl group, an alkoxy group, an alkylenedioxy group, an aryloxy group, an aralkyloxy group, and a heteroaryloxy group.
- the hydrocarbon group examples include an alkyl group, an alkenyl group, an alkynyl group, an alkyl group, an aralkyl group and the like.
- the alkyl group may be linear, branched or cyclic, for example, an alkyl group having 1 to 15 carbon atoms, preferably 1 to 10 carbon atoms, more preferably 1 to 6 carbon atoms.
- Specific examples include methyl, ethyl, n_propyl, 2-propyl, n-butyl, 2-butynole, isobutyl, tert-butylinole, n-pentyl, and 2_ Pentyl group, tert-pentyl group, 2-methylbutyl group, 3-methylbutyl group, 2,2-dimethylpropyl group, n-hexyl group, 2-hexynole group, 3-hexynole group, tert-hexynole group, Examples thereof include 2-methynole pentynole group, 3-methynolepentyl group, 4-methylpentynole group, 2-methylpentane-13-yl group, cyclopropynole group, cyclobutyl group, cyclopentyl group, and cyclohexyl group.
- the alkenyl group may be linear or branched, for example, an alkenyl group having 2 to 15 carbon atoms, preferably 2 to 10 carbon atoms, and more preferably 2 to 6 carbon atoms. Specific examples include an etyl group, a propenyl group, a 1-butenyl group, a pentenyl group, a hexenyl group and the like.
- the alkynyl group may be linear or branched, for example, an alkynyl group having 2 to 15 carbon atoms, preferably 2 to 10 carbon atoms, and more preferably 2 to 6 carbon atoms.
- Examples thereof include an ethyl group, a 1-propynyl group, a 2-propynyl group, a 1-butynyl group, a 3-butyl group, a pentyl group, a hexynyl group and the like.
- Examples of the aryl group include an aryl group having 6 to 14 carbon atoms. Specific examples include a phenyl group, a naphthyl group, an anthryl group, a phenanthrenyl group, and a biphenyl group. And the like.
- Examples of the aralkyl group include a group in which at least one hydrogen atom of the alkyl group is substituted with the aralkyl group.
- an aralkyl group having 7 to 13 carbon atoms is preferable, and specifically, a benzyl group A 2-phenylethyl group, a 1-phenylenopropyl group, a 3-naphthinopropyl group and the like.
- the aliphatic heterocyclic group examples include a heteroatom having 2 to 14 carbon atoms and at least one, preferably 1 to 3 hetero atoms such as a nitrogen atom, an oxygen atom, and a sulfur atom. It includes a 5- to 8-membered, preferably 5- or 6-membered, monocyclic aliphatic heterocyclic group, and a polycyclic or fused-ring aliphatic heterocyclic group.
- aliphatic heterocyclic group examples include, for example, a pyrrolidyl-2-one group, a piperidino group, a piperazinyl group, a morpholino group, a tetrahydrofuryl group, a tetrahydrovillaryl group, a tetrahydrochenyl group, and the like.
- the aromatic heterocyclic group includes, for example, a heteroatom having 2 to 15 carbon atoms and at least one, preferably 1 to 3 heteroatoms such as a nitrogen atom, an oxygen atom, and a sulfur atom.
- the alkoxy group may be linear, branched or cyclic, and includes, for example, an alkoxy group having 1 to 6 carbon atoms, and specifically, a methoxy group, an ethoxy group, an n_propoxy group, a 2-propoxy group , N—butoxy group, 2-butoxy, isobutoxy, tert-butoxy, n-pentyloxy, 2-methylbutoxy, 3-methylbutoxy, 2,2-dimethylpropyloxy, n-hexyloxy, 2-methylpenty Examples include a noroxy group, a 3-methylpentynoleoxy group, a 4-methylpentyloxy group, a 5-methylpentyloxy group, and a cyclohexyloxy group.
- alkylenedioxy group examples include an alkylenedioxy group having 1 to 3 carbon atoms, specifically, a methylenedioxy group, an ethylenedioxy group, a propylenedioxy group and the like.
- aryloxy group examples include an aryloxy group having 6 to 14 carbon atoms, and specific examples include a phenyloxy group, a naphthyloxy group, and an anthroxy group.
- aralkyloxy group examples include an aralkyloxy group having 7 to 12 carbon atoms. Specific examples include a benzyloxy group, a 2-phenylethoxy group, a 1-phenylpropoxy group, a 2-phenylpropoxy group, and a 3-phenylalkyl group.
- Phenylpropoxy group 1-phenylbutoxy group, 2-phenylbutoxy group, 3_phenylbutoxy group, 4-1-phenylbutoxy group, 1-phenylpentynoleoxy group, 2-phenylenopentenolexoxy group, 3-phenylinolepentyloxy group Group, 4-phenylpentynoleoxy group, 5_phenylenopentyloxy group, 1-phenylhexyloxy group, 2-phenylhexyloxy group, 31-phenylhexyloxy group, 4-phenylhexynoleoxy group And a 5-phenylenoxyhexoleoxy group, and a 6-phenylinolehexynoleoxy group.
- the heteroaryloxy group includes, for example, at least one, and preferably one to three, hetero atoms such as a nitrogen atom, an oxygen atom, and a sulfur atom.
- heteroaryloxy groups Specific examples include a 2-pyridyloxy group, a 2-pyrazyloxy group, a 2-pyrimidyloxy group, and a 2-quinolyloxy group.
- acyloxy group examples include an acyloxy group having 2 to 18 carbon atoms derived from a carboxylic acid, and specific examples thereof include an acetyloxy group, a propionyloxy group, a butyryloxy group, a piperyloxy group, and a pentanoyloxy group. And hexanoyloxy, radioyloxy, stearoyloxy, benzoyloxy and the like.
- acyl group may be linear or branched, and examples thereof include an acyl group having 1 to 18 carbon atoms derived from a carboxylic acid such as an aliphatic carboxylic acid and an aromatic carboxylic acid.
- a carboxylic acid such as an aliphatic carboxylic acid and an aromatic carboxylic acid.
- the alkoxycarbonyl group may be linear, branched or cyclic, and includes, for example, an alkoxycarbonyl group having 2 to 19 carbon atoms. Specific examples include a methoxycarbonyl group, an ethoxycarbonyl group, and n-propoxy group.
- Canoleboninole group 2-propoxycanoleboninole group, n-butoxy force / repo-binolene group, tert-butoxycarbonyl group, pentyloxycarbinole group, hexinoleoxycarbonyl group, 2-ethylhexylol
- Examples thereof include a xycarbonyl group, a lauryloxycarbonyl group, a stearyloxycarbonyl group, and a cyclohexyloxycarbonyl group.
- aryloxycarbonyl group examples include an aryloxycarbonyl group having 7 to 20 carbon atoms, and specific examples include a phenoxycarbonyl group and a naphthyloxycarbonyl group.
- aralkyloxy group examples include aralkyloxycarbonyl groups having 8 to 15 carbon atoms, such as benzyloxycarbonyl, phenylethoxycanolebonyl, and 9-fluorenyl. Noremethyloxycarponinole etc. No.
- the alkylthio group may be linear, branched, or cyclic, and includes, for example, an alkylthio group having 1 to 6 carbon atoms. Specific examples include a methylthio group, an ethylthio group, an ⁇ -propylthio group, Propylthio group, ⁇ -butylthio group, 2-butylthio group, isobutylthio group, tert-butylthio group, pentylthio group, hexylthio group, and hexylthio group.
- alkylthio group examples include an arylthio group having 6 to 14 carbon atoms, and specific examples include a phenylthio group and a naphthylthio group.
- aralkylthio group examples include an aralkylthio group having 7 to 12 carbon atoms, and specific examples include a benzylthio group and a 2-phenylthio group.
- the heteroarylthio group includes, for example, at least one, and preferably one to three, hetero atoms such as a nitrogen atom, an oxygen atom, and a sulfur atom, and has 2 to 1 carbon atoms.
- heteroarylthio groups specifically, for example, a 4-pyridylthio group, a 2-benzimidazolylthio group, a 2-benzoxazolylthio group, and a 2-benzothiazolylthio group.
- the sulfinyl group examples include a substituted sulfyl group represented by R—SO— (R represents the above-mentioned alkyl group, aryl group, aralkyl group and the like).
- R represents the above-mentioned alkyl group, aryl group, aralkyl group and the like.
- Specific examples of the sulfinyl group include a methanesulfinyl group and a benzenesulfiel group.
- the sulfonyl group, R- S 0 2 For example - (The R, the alkyl group, Ariru group, a Ararukiru group.) Include a substituted sulfonyl group represented by.
- Specific examples of the sulfonyl group include a methanesulfonyl group and a p-toluenesulfonyl group.
- substituted amino group one or two hydrogen atoms of the amino group are substituted with a substituent such as the above-mentioned alkyl group, the above-mentioned aryl group or a protecting group for the amino group. And an amino group.
- a substituent such as the above-mentioned alkyl group, the above-mentioned aryl group or a protecting group for the amino group.
- an amino group examples include “PROTECTIVE GROUP SIN ORGAN ICS YNTHE SISS econd Edition” and JOHN WILEY. & SONS, INC.), Any of those conventionally used as amino protecting groups can be used.
- amino-protecting group examples include an alkyl group, an aryl group, an aralkyl group, an acyl group, an alkoxypropyl group, an aryloxycarbonyl group, an aralkyloxycarbonyl group, and a sulfonyl group.
- an amino group substituted with an alkyl group that is, an alkyl group-substituted amino group
- an amino group substituted with an alkyl group include N-methylamino group, N, N-dimethylamino group, N, N-dimethylamino group, N, N-diisopropylamino group, and N-amino group.
- Mono or dialkylamino groups such as cyclohexylamino groups are exemplified.
- an amino group substituted with an aryl group that is, an aryl group-substituted amino group
- an amino group substituted with an aryl group include N-phenylamino group, N, N-diphenylamino group, N-naphthylamino group, N-naphthyl-N-phenylamino And mono- or diarylamino groups such as a group.
- Specific examples of the aralkyl group substituted with an aralkyl group that is, mono- or diaralkylamino groups such as an N-benzylamino group and an N, N-dibenzylamino group are given as examples of the aralkyl group-substituted amino group.
- amino group substituted with an acyl group that is, formylamino group, acetylamino, propionylamino, pivaloylamino, pentanoylamino, hexanoylamino, benzoylamino, benzoylamino, etc. No.
- an amino group substituted with an alkoxycarbonyl group that is, an alkoxycarbonylamino group
- an amino group substituted with an alkoxycarbonyl group include Toxicoxycarbonylamino, ethoxycanolevonylamino, n-propoxycanolevonylamino, n-butoxycanoleponylamino, tert-butoxycarbonylamino, pentyloxycarbonylamino And hexyloxycarbonylamino groups and the like.
- Specific examples of an amino group substituted with an aryloxycarbonyl group that is, an amino group in which one hydrogen atom of the amino group is substituted with the above-mentioned aryloxycarbonyl group are specific examples.
- Specific examples include a phenoxycarbonylamino group and a naphthyloxycarbonylamino group.
- Specific examples of the aralkyloxycarbonylamino substituted with an aralkyloxycarbonyl group that is, a benzyloxycarbonylamino group and the like can be given as examples.
- Specific examples of an amino group substituted with a sulfonyl group, that is, a sulfonylamino group include a methanesulfonylamino group and a p_toluenesulfonylamino group.
- Examples of the substituted rubamoyl group include a substituted rubamoyl group in which one or two hydrogen atoms of the amino group in the substituted rubamoyl group have been substituted with a substituent such as the above-mentioned alkyl group, aryl group or aralkyl group.
- Specific examples include an N-methylcarbamoinole group, an N, N-getylcanolepamoyl group, and an N-pheninolecanolepamoyl group.
- Examples of the substituted sulfamoyl group include a sulfamoyl group in which one or two hydrogen atoms of an amino group in the sulfamoyl group are substituted with a substituent such as the above-mentioned alkyl group, aryl group, and aralkyl group.
- Specific examples include an N-methylsulfamoyl group, an N, N-dimethylsulfamoyl group, and an N-phenylsulfamoyl group.
- the substituted perido group examples include a peridode group in which at least one hydrogen atom on the nitrogen atom in the perido group is substituted with a substituent such as the above alkyl group, aryl group, or aralkyl group. Specific examples thereof include an N-methylureido group and an N-funinylperido group.
- the phosphoric acid amide group includes a substituent in which at least one hydrogen atom of the phosphoric acid group in the phosphoric acid amide group is substituted with a substituent such as the above alkyl group, aryl group, aralkyl group and the like.
- Examples thereof include a phosphate amide group, specifically, a getyl phosphate amide group, a phenyl phosphate amide group, and the like.
- Examples of the silyl group include a tri-substituted silyl group in which three hydrogen atoms on a silicon atom are substituted with a substituent such as the above-mentioned alkyl group, aryl group and aralkyl group. Group, tert-butyldimethylsilyl group, tert-butyldiphenylsilinole group, triphenylsilinole group and the like.
- Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
- the sulfamoyl group, substituted ureido group, phosphate amide group or silyl group may be further substituted with a group selected from the above-mentioned substituent group.
- X represents an oxygen atom or a sulfur atom. Particularly preferred X is an oxygen atom.
- ⁇ And ⁇ independently represent a hydrogen atom or a substituent.
- substituents include a hydrocarbon group, an aliphatic heterocyclic group, an aromatic heterocyclic group, and the like.
- hydrocarbon group, the aliphatic heterocyclic group, and the aromatic heterocyclic group include the same examples as the substituents described in detail in the description of ring A and ring B. These substituents are the same as those described in the description of ring A and ring B in detail. It may be further substituted by a group selected from the group of groups.
- R 2 and R 3 each independently represent a hydrogen atom or a substituent.
- substituents include a hydrocarbon group, an aliphatic heterocyclic group, an aromatic complex ring group, an acyl group, a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an aralkyloxycarponyl group, and a carbamoyl group.
- a substituting power such as a rubamoyl group and a cyano group.
- group and the cyano group include the same examples as the substituents described in detail in the description of ring A and ring B.
- the hydrocarbon group, the aliphatic heterocyclic group, the aromatic heterocyclic group, the acyl group, the alkoxycarbonyl group, the aryloxycarbonyl group, the aralkyloxycarbonyl group, and the substituent rubamoyl group are represented by ring A and ring A.
- the ring B may be further substituted by a group selected from the group of substituents described in detail.
- R 1 and R 2 , R 2 and R 3 , and R 3 and R 4 may be bonded to each other to form a ring.
- Examples of the case where R 1 and R 2 and R 3 and R 4 combine to form a ring include a nitrogen-containing aromatic heterocyclic ring which may have a substituent.
- Examples of the nitrogen-containing aromatic hetero ring which may have a substituent include a nitrogen-containing aromatic hetero ring and a substituted nitrogen-containing aromatic hetero ring.
- the nitrogen-containing aromatic heterocyclic ring is, for example, an aromatic heterocyclic ring having 2 to 15 carbon atoms and having at least one nitrogen atom capable of coordinating in the center of platinum as a heteroatom.
- it may have a hetero atom such as a nitrogen atom, an oxygen atom, a sulfur atom and the like.
- the two atoms adjacent to the nitrogen atom coordinated with the platinum center are preferably carbon atoms.
- the nitrogen-containing aromatic heterocyclic ring is a 5- to 8-membered, preferably 5- or 6-membered, monocyclic, nitrogen-containing, aromatic heterocyclic ring, or a polycyclic or condensed-ring, nitrogen-containing, aromatic heterocyclic ring.
- nitrogen-containing aromatic heterocycle examples include, for example, a pyridine ring, a pyrimidine ring, a pyrazine ring, an imidazole ring, an oxazole ring, a thiazole ring, an isoquinoline ring, a quinazoline ring, a naphthyridine ring and the like.
- substituted nitrogen-containing aromatic heterocycle examples include a nitrogen-containing aromatic heterocycle in which at least one hydrogen atom of the above-described nitrogen-containing aromatic heterocycle is substituted with a substituent.
- substituent include the same examples as the substituent described in detail in the description of ring A and ring B.
- R 2 and R 3 combine to form a ring
- examples include, for example, an aliphatic ring which may have a substituent, an aliphatic hetero ring which may have a substituent, and a substituent.
- examples include an aromatic ring which may be possessed and an aromatic complex ring which may be possessed by a substituent.
- Examples of the aliphatic ring which may have a substituent include an aliphatic ring and a substituted aliphatic ring.
- Examples of the aliphatic ring include a 3- to 8-membered monocyclic aliphatic ring, a polycyclic or condensed aliphatic ring having 3 to 14 carbon atoms.
- aliphatic ring examples include, for example, a cyclopropane ring, a cyclobutane ring, a cyclopentane ring, a cyclohexane ring, a decalin ring and the like.
- substituted aliphatic ring examples include an aliphatic ring in which at least one hydrogen atom of the above aliphatic ring is substituted with a substituent.
- substituent include the same examples as the substituent described in detail in the description of ring A and ring B.
- Examples of the aliphatic heterocyclic ring which may have a substituent include an aliphatic heterocyclic ring and a substituted aliphatic heterocyclic ring.
- the aliphatic heterocyclic ring has, for example, 2 to 14 carbon atoms and contains at least one, preferably 1 to 3 hetero atoms such as a hetero atom such as a nitrogen atom, an oxygen atom, and a sulfur atom.
- aliphatic heterocyclic ring examples include, for example, a pyrrolidin-2-one ring, a piperidine ring, a piperazine ring, a morpholine ring, a tetrahydrofuran ring, a tetrahydrodropiran ring, and a tetrahydrodorofiefu Ring and the like.
- substituted aliphatic heterocycle examples include an aliphatic heterocycle in which at least one hydrogen atom of the above aliphatic heterocycle is substituted with a substituent.
- substituent examples include the same examples as the substituent described in detail in the description of ring A and ring B.
- aromatic ring which may have a substituent examples include the same examples as those described in detail in the description of ring A and ring B.
- the ring formed by bonding of R 1 and R 2 , R 2 and R 3 , and R 3 and R 4 may be further bonded to form a condensed ring.
- the condensed ring include, for example, a quinoline ring, a dihydroquinoline ring, a quinazoline ring, a quinoxaline ring, a naphthyridine ring, a 1,10-phenanthroline phosphorus ring, and a 4,5-diazafluorene-1-91 And an on-ring.
- Preferred examples of the platinum complex represented by the general formula (1) include the general formula (1a):
- ring C, ring D, ring E, ring F and ring I each independently represent an optionally substituted aromatic ring
- ring G and ring H are each independently Represents a nitrogen-containing aromatic heterocyclic ring which may have a substituent
- X represents an oxygen atom or a sulfur atom
- R 5 and R 6 each independently represent a hydrogen atom or a substituent.
- R 5 and ring D, R 6 and ring D, ring G and ring H may be bonded to each other to form a condensed ring.
- each of ring C, ring D, ring E, ring F and ring I is independently an aromatic ring which may have a substituent.
- the aromatic ring which may have a substituent include the same examples as the rings described in detail in the description of ring A and ring B.
- ring G and ring H each independently represent a nitrogen-containing aromatic heterocyclic ring which may have a substituent.
- the nitrogen-containing aromatic heterocyclic ring which may have a substituent include the same examples as those described in detail in the description of the ring formed by bonding R 1 and R 2 , and R 3 and R 4.
- X represents an oxygen atom or a sulfur atom, and particularly preferably X includes an oxygen atom.
- R 5 and R 6 each independently represent a hydrogen atom or a substituent, and examples of the substituent include the same examples as the substituents described in detail in the description of R 1 and R 4 .
- As a condensed ring formed by bonding R 5 and ring D, R 6 and ring D, ring G and ring H, R 1 and R 2 , R 2 and R 3 , R 3 and R 4 are respectively bonded
- Examples of the condensed ring derived from the formed ring include the same examples as those described in detail for the ring.
- platinum complex represented by the general formula (1) in the present invention include, for example, the following compounds (111) to (1-96).
- the platinum complex (1) of the present invention is obtained by converting a complex precursor and a compound represented by the general formula (2) (hereinafter abbreviated as “compound (2)”) into a suitable base and a suitable solvent.
- the reaction can be easily performed by reacting in the presence of an inert gas atmosphere if necessary.
- the complex precursor may be either an inorganic platinum compound or an organic platinum complex, but an organic platinum complex is more preferable.
- Preferred inorganic platinum compound P t Y 2 (Y represents a halogen atom.)
- M 2 P t Y 4 (Y represents a halogen atom, M is. Representing the alkali metal) it can be mentioned up.
- the halogen atom represented by Y include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
- the alkali metal represented by M include lithium, sodium, and potassium.
- II Potassium is exemplified.
- a preferred organic platinum complex is represented by the general formula (3):
- J represents a non-conjugated diene compound
- Y represents a halogen atom.
- the non-conjugated diene compound represented by J may be cyclic or non-cyclic.
- the non-conjugated diene compound is a cyclic non-conjugated diene compound, it is monocyclic, polycyclic, condensed or cross-linked. Any of a ring shape may be sufficient.
- the non-conjugated diene compound may be a non-conjugated diene compound substituted with a substituent, that is, a substituted non-conjugated diene compound.
- the substituent is not particularly limited as long as it does not adversely affect the production method of the present invention. Examples thereof include the same groups as the substituents described in detail in the description of the platinum complex.
- Preferred non-conjugated diene compounds include 1,5-cyclooctadiene, bicyclo [2,2,1] hepter 2,5-diene, and 1,5-hexadiene. And 1,5-hexagen.
- the halogen atom represented by ⁇ include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, and a chlorine atom and a bromine atom are particularly preferable.
- compound (2) is a tetradentate ligand having two nitrogen atoms capable of coordinating to the platinum metal center and two hydroxyl groups or two mercapto groups capable of bonding to the platinum metal center.
- ring A, ring B, X, Ri, R 2 , R 3 and R 4 are the same as described above.
- specific examples of the compound (2) specific examples of the platinum complex in the present invention are as follows. (111) to (1 ⁇ 96), each of which excludes platinum metal, and each of X represents one hydrogen atom. Compounds (2-1) to (2-96), which are the added compounds, may be mentioned.
- the amount of compound (2) to be used is generally 0.5 to 20 equivalents, preferably 0.8 to 10 equivalents, more preferably 1.0 to 2.0 equivalents, relative to the complex precursor.
- the production of the platinum complex (1) is desirably performed in the presence of a solvent.
- Preferred solvents include, for example, amides such as N, N-dimethylformamide, formamide, N, N-dimethylacetamide, cyano-containing compounds such as acetonitrile, dichloromethane, Halogenated hydrocarbons such as 1,2-dichloroethane, chloroform, tetrachloride carbon, o-dichlorobenzene, aliphatics such as pentane, hexane, heptane, octane, decane and cyclohexane Hydrocarbons, aromatic hydrocarbons such as benzene, toluene, xylene, etc., getyl ether, diisopropyl Noreethenol, tert-butynolemethynoleethenol, dimethoxetane, ethylene glycol getyl
- solvents may be used alone or in an appropriate combination of two or more. More preferred solvents include amides such as N, N-dimethylformamide, N, N-dimethylacetamide, cyano-containing compounds such as acetonitrile, and ethylene glycol getyl ether.
- amides such as N, N-dimethylformamide, N, N-dimethylacetamide, cyano-containing compounds such as acetonitrile, and ethylene glycol getyl ether.
- ketones such as acetone, methylethylketone, methylisobutylketone, methanol, ethanol, 2-prononole N-butanol
- alcohols such as 2-ethoxyxetanol
- polyhydric alcohols such as ethylene glycol, propylene glycol, 1,2-
- solvents may be used alone or in an appropriate combination of two or more, and a mixed solvent with water is particularly preferable.
- the amount of the solvent used is not particularly limited as long as the reaction can proceed sufficiently, but is appropriately selected from the range of usually 1 to 200 times, preferably 1 to 50 times the volume of the complex precursor. You.
- the reaction is desirably performed in the presence of a base.
- the base include an inorganic base and an organic base.
- Preferred inorganic bases are Alkali metal hydroxides, such as lithium, sodium hydroxide, and hydroxylated water; alkali metal carbonates, such as lithium carbonate, sodium carbonate, and sodium carbonate; sodium hydrogencarbonate, hydrogencarbonate Metal hydrogencarbonates such as sodium hydride and metal hydrides such as sodium hydride.
- Preferred organic bases include lithium metal alkoxides such as lithium methoxide, sodium methoxide, potassium methoxide, sodium ethoxide, potassium ethoxide, potassium tert-butoxide, triethylamine and disopropylethylamine.
- Organic Decane 7-ene organic amines such as tri-n-butylamine, N-methylmorpholine, organic alkali metal compounds such as n-butyllithium and tert-butyllithium, butylmagnesium chloride, bromide Darynyal reagents such as phenylmagnesium and methylmagnesium iodide.
- the amount of the base to be used is appropriately selected usually from the range of 1 to 10 equivalents, preferably 1.5 to 5 equivalents, more preferably 2 to 3 equivalents, relative to compound (2).
- the reaction may be started by simultaneously mixing the complex precursor, the compound (2) and the base, or the complex precursor may be reacted after the compound (2) and the base are reacted in advance. May be thrown. Further, a compound obtained by previously reacting compound (2) with a base may be added to the complex precursor.
- the above production method is preferably performed in an inert gas atmosphere.
- the inert gas include nitrogen gas and argon gas.
- the above-mentioned manufacturing method can be performed by using an ultrasonic generator together.
- the reaction temperature is usually suitably selected from the range of 25 to 300 ° (preferably 60 to 200 ° C., more preferably 80 to 150 ° C.)
- the reaction time is determined by the reaction temperature and other solvents. The reaction time varies depending on the reaction conditions such as the temperature and the base, but is appropriately selected from the range of usually 10 minutes to 72 hours, preferably 30 minutes to 48 hours, and more preferably 1 to 12 hours.
- the platinum complex thus obtained can be subjected to post-treatment, isolation and purification, if necessary.
- the post-treatment method include extraction of a reaction product, filtration of a precipitate, crystallization by addition of a solvent, and evaporation of the solvent. These post-treatments can be performed alone or in combination.
- Methods for isolation and purification include, for example, column chromatography, recrystallization, sublimation, etc., which can be performed alone or in combination.
- the platinum complex (1) obtained by the above production method is useful as a phosphorescent material in a light-emitting device, particularly an organic EL device.
- the light-emitting device of the present invention is not particularly limited as long as it is a device using the white gold complex (1), such as a system, a driving method, and a use form. Is preferably used as a charge transport material. As a typical light emitting element, an organic EL element can be cited.
- the light-emitting device of the present invention only needs to contain at least one kind of the platinum complex (1), and at least one light-emitting device in which a light-emitting layer or a plurality of organic compound layers including the light-emitting layer is formed between a pair of electrodes. At least one platinum complex (1) is contained.
- the platinum complex (1) may contain at least one kind, and may contain two or more kinds in an appropriate combination. For example, when the platinum complex (1) is used as a doping material for a light emitting layer of an organic EL device, a device having excellent color purity and excellent external quantum efficiency and luminous efficiency as compared with conventionally known devices can be obtained. be able to.
- the method for forming the organic layer (organic compound layer) in the light emitting device of the present invention is not particularly limited, but is usually resistance heating evaporation, electron beam, sputtering, Methods such as a molecular lamination method, a coating method, and an ink jet method are used, and resistance heating evaporation and a coating method are preferable methods in terms of characteristics and production.
- the light-emitting element of the present invention is an element in which a plurality of organic compound thin films including a light-emitting layer or a light-emitting layer are formed between a pair of electrodes of an anode and a cathode.
- a hole injection layer, a hole transport layer , An electron injection layer, an electron transport layer, a protective layer, and the like, and each of these layers may have another function.
- the anode supplies holes to the hole injection layer, the hole transport layer, the light emitting layer, and the like.
- the material for forming the anode may be a metal, an alloy, a metal oxide, an electrically conductive compound, or any of these. And a material having a work function of 4 eV or more is preferable.
- Specific examples include conductive metal oxides such as tin oxide, zinc oxide, indium oxide, and indium tin oxide (hereinafter abbreviated as “IT ⁇ ”), or metals such as gold, silver, chromium, nickel, and the like.
- the thickness of the anode can be appropriately selected depending on the material, but is usually preferably in the range of 10 nm to 5 ⁇ m, more preferably 50 nm to 1 ⁇ m, and still more preferably 100 nm to 50 ⁇ m. 0 nm.
- the anode is usually formed on a substrate such as soda lime glass, alkali-free glass, or a transparent resin substrate.
- a substrate such as soda lime glass, alkali-free glass, or a transparent resin substrate.
- glass As for the material, it is preferable to use non-alkaline glass in order to reduce ions eluted from the glass.
- soda lime glass it is preferable to use a soda lime glass coated with a barrier coat such as silica.
- the thickness of the substrate is not particularly limited as long as it is sufficient to maintain the mechanical strength. When glass is used, the thickness is usually 0.2 mm or more, preferably 0.7 mm or more.
- Various methods are used to fabricate the anode depending on the material.
- ITO dispersion The film is formed by a method such as application of a film.
- the anode can be cleaned or otherwise treated to lower the device driving voltage and increase the luminous efficiency.
- UV-ozone treatment and plasma treatment are effective.
- the cathode supplies electrons to the electron injection layer, the electron transport layer, the light emitting layer, etc., and provides the adhesion, ionization potential, and stability between the negative electrode such as the electron injection layer, the electron transport layer, and the light emitting layer.
- the cathode material examples include metals, alloys, metal halides, metal oxides, electrically conductive compounds, and mixtures thereof. Specific examples include alkali metals such as lithium, sodium, and potassium. ⁇ ⁇ Al fluoride earth metal such as fluoride, magnesium, calcium and its fluoride, gold, silver, lead, aluminum, sodium-alloy alloy or mixed metal thereof, magnesium-silver alloy or mixed metal thereof , Indium, ytterbium, and the like, and a material having a work function of 4 eV or less is preferable. More preferable materials are aluminum, a lithium-aluminum alloy or a mixed metal thereof, a magnesium-silver alloy, or a magnesium-silver alloy. And the like.
- the cathode may have a laminated structure containing the above compound and a mixture.
- the thickness of the cathode can be selected as appropriate depending on the material, but it is usually 10 nm to 5 ⁇ m Is preferably in the range of 500 nm to 1 m, and more preferably 100 nm to 1 ⁇ m.
- the cathode is manufactured by an electron beam method, a sputtering method, a resistance heating evaporation method, a coating method, or the like.
- the metal can be evaporated alone or two or more components can be evaporated simultaneously. Further, it is possible to form a pole with an alloy by depositing a plurality of metals at the same time, or an alloy prepared in advance may be deposited. The lower the sheet resistance of the cathode and anode, the better.
- the material of the light-emitting layer is a layer having a function of injecting electrons from the anode or the hole injection layer or the hole transport layer when an electric field is applied, and a function of providing a field for recombination of holes and electrons to emit light. Any material can be used as long as it can form a film.
- the light emitting layer can be doped with a fluorescent material and a phosphorescent material having high luminous efficiency.
- benzoxazole derivatives triphenylamine derivatives, benzimidazonole derivatives, benzothiazonole derivatives, styrylbenzene derivatives, polyphenyl derivatives, diphenylbutadiene derivatives, tetrahydrobutadiene derivatives, naphthalimid derivatives, coumarin derivatives, perylene derivatives , Perinone derivatives, oxazidazole derivatives, aldazine derivatives, bilaridine derivatives, cyclopentadiene derivatives, bisstyrylanthracene derivatives, quinacridone derivatives, pyroporidine derivatives, thiadiazopyridine derivatives, styrylamine derivatives, aromatic dimethylidyne compounds, Metal complexes of quinolinol derivatives ⁇ Various metal complexes represented by rare earth complexes, polythiophene, polyphenylene, polyphenylene Polymer compounds such as vinylene
- the thickness of the light emitting layer is not particularly limited, it is usually 1 ⁇ ! Preferably in the range of ⁇ 5 ⁇ m, more It is preferably from 5 nm to 1 ⁇ , and more preferably from 10 nm to 500 nm.
- the method for forming the light emitting layer is not particularly limited, but includes an electron beam method, a sputtering method, a resistance heating evaporation method, a molecular lamination method, a coating method (spin coating method, casting method, dip coating method). Etc.), an ink jet method, an LB (laser beam) method, and the like, and preferably a resistance heating evaporation and a coating method.
- the material of the hole injection layer and the hole transport layer may have any of a function of injecting holes from the anode, a function of transporting holes, and a function of blocking electrons injected from the cathode.
- Good. Specific examples include carbazole derivatives, triazole derivatives, oxadiazole derivatives, oxazole derivatives, imidazole derivatives, polyarylalkane derivatives, pyrazoline derivatives, pyrazoopene derivatives, phenylenediamine derivatives, arylamine derivatives, amino-substituted chalcone derivatives, Styryllanthracene derivatives, fluorenone derivatives, hydrazone derivatives, stilbene derivatives, silazane derivatives, aromatic tertiary amine compounds, styrylamine compounds, aromatic dimethylidin compounds, porphyrin compounds, polysilane compounds, poly ( N-vinylcarbazole) derivatives, aniline-based copolymers, conductive high-
- the thickness of the hole injection layer and the hole transport layer is not particularly limited, but is usually preferably in the range of 1 nm to 5 ⁇ , more preferably 5 nm to 1 ⁇ m, and still more preferably. Is from 10 nm to 500 nm.
- the hole injection layer and the hole transport layer may have a single layer structure composed of one or more of the above-mentioned materials, or may have a multilayer structure composed of a plurality of layers having the same composition or different compositions.
- the hole injecting layer and the hole transporting layer can be formed by a vacuum deposition method, an LB method, or a method in which the above hole injecting and transporting agent is dissolved or dispersed in a solvent and coated (spin coating, casting, Various methods such as a dip coating method and an ink jet method are used. In the case of the coating method, the above materials can be dissolved or dispersed together with the resin component in a solvent.
- the resin component may be, for example, polyvinyl chloride, polycarbonate, polystyrene, polymethinolemethacrylate, polybutynolemethacrylate, polyester, polysnoreon, polyphenylene oxide, polybutadiene, poly (N-vinylcarbazole) , A hydrocarbon resin, a ketone resin, a phenoxy resin, a polyamide, an ethylcellulose, a vinyl acetate, an ABS resin, an alkyd resin, an epoxy resin, and a silicon resin.
- polyvinyl chloride polycarbonate
- polystyrene polymethinolemethacrylate
- polybutynolemethacrylate polyester
- polysnoreon polyphenylene oxide
- polybutadiene poly (N-vinylcarbazole)
- a hydrocarbon resin a ketone resin, a phenoxy resin, a polyamide, an ethylcellulose, a vinyl acetate
- the material of the electron injecting layer and the electron transporting layer may be any as long as it has a function of injecting electrons from the cathode, a function of transporting electrons, and a function of blocking holes injected from the anode. .
- the ion blocking potential of the hole blocking layer having a function of blocking holes injected from the anode is selected to be higher than the ionization potential of the light emitting layer.
- materials for the electron injection layer and the electron transport layer include triazole derivatives, oxazole derivatives, polycyclic compounds, heteropolycyclic compounds such as bathocuproine, oxaziazole derivatives, fluorenone derivatives, difluoroquinone derivatives, and thiopyrans.
- Metal complexes of 8-quinolinol derivatives metal phthalocyanines, various metal complexes represented by metal complexes having benzoxazole or benzothiazole as ligands, organic silane derivatives, platinum complex (1) of the present invention, etc. Be .
- the thickness of the electron injection layer and the electron transport layer is not particularly limited, but is usually preferably in the range of 1 nm to 5 ⁇ m, and more preferably 5 nm to 1 ⁇ m. m, more preferably from 1 O nm to 500 nm.
- the electron injection layer and the electron transport layer may have a single layer structure composed of one or more of the above-mentioned materials, or may have a multilayer structure composed of a plurality of layers having the same composition or different compositions.
- Examples of the method for forming the electron injection layer and the electron transport layer include a vacuum evaporation method, an LB method, and a method of dissolving or dispersing the above hole injection and transport agent in a solvent and coating (spin coating method, casting method, A dip coating method, an ink jet method and the like are used.
- spin coating method the material is dissolved or dispersed together with the resin component.
- the resin component those exemplified for the hole injection layer and the hole transport layer can be used.
- any material can be used as long as it has a function of preventing the element that promotes element deterioration such as moisture and oxygen from entering the element.
- the protective layer material include metals such as indium, tin, lead, gold, silver, copper, aluminum, titanium, and nickel, magnesium oxide, silicon dioxide, dialuminum trioxide, germanium oxide, nickel oxide, and nickel oxide.
- Metal oxides such as calcium, barium oxide, diiron trioxide, nitrite trioxide, titanium oxide, magnesium fluoride, lithium fluoride, aluminum fluoride, metal fluorides of calcium fluoride, polyethylene, polypropylene, polymethylmethacrylate Relate, polyimide, polypropylene, polytetrafluoroethylene, polychlorotrifluorophenol, polydichlorodifluoroethylene, copolymer of ethylene with dichlorodifluoroethylene, dichlorodifluoroethylene With trough noroethylene
- a copolymer obtained by copolymerizing a monomer mixture containing at least one comonomer, a fluorinated copolymer having a cyclic structure in the copolymer main chain, a water-absorbing substance having a water absorption of 1% or more, a water absorption of 0 1% or less of moisture-proof substance.
- Method sputtering method, reactive sputtering method, MBE (molecular beam epitaxy) method, cluster ion beam method, ion plating method, plasma polymerization method (high frequency excitation ion plating method), plasma CVD method, laser (1) CVD method, thermal CVD method, gas source CVD method, coating method, etc. can be applied.
- 2,2′-Bibiridin (5.0 g, 32.0 mmol 1, 1.0 equivalent) was charged into the reactor, and the inside of the reactor was purged with nitrogen. Next, getyl ether (100 mL) was added, and the contents were cooled to 5 ° C using an ice bath. The dimethyl ether solution of 2-methoxyphenyllithium prepared above was added dropwise thereto over 1 hour, and the mixture was further stirred at room temperature for 12 hours after completion of the addition. The resulting dark purple reaction solution was slowly poured into a saturated aqueous solution of ammonium chloride, and the organic layer was separated. After that, the aqueous layer was extracted with methylene chloride.
- the yellow solid obtained by cooling the contents was added to a suspension of dichloromethane Z water, and the acidity of the aqueous layer was 100 mL of a 1N aqueous sodium hydroxide solution was added dropwise until the pH became 7.0. After separating the organic layer, the aqueous layer was extracted three times with dichloromethane, and the organic layers were combined and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (eluent: dichloromethane), and recrystallized from hexane / dimethlomethane to give Exemplified compound (2-88) as a cream-colored powder. O g was obtained. Yield 90.3%.
- potassium chloroplatinate (II) acid 500 mg, 1.20 mmo, 1.0 equivalent
- the exemplary compound (2-11) (4-18 mg, 1 3.2 mmo 1, 1.1 equivalents)
- lithium hydroxide 168 mg, 3.00 mmo, 2.5 equivalents
- acetone 10 mL
- water 10 mL
- the precipitated crude crystals were collected by filtration and washed with a saturated aqueous solution of sodium hydrogen carbonate.
- Example compound (2-14) (570 mg, 1.32 mmo 1, 1.1 equivalents) prepared in Reference Example 2 and a hydroxylating agent Umm (1
- the product was further purified at 330 ° C. to give the exemplified compound (1_14) as a red powder with a sublimation yield of 81.4%.
- Fluorescence emission wavelength 6 39. 6 nm (Excitation wavelength: 575.0 nm)
- potassium chloroplatinate (II) acid 500 mg, 1.20 mmo, 1.0 equivalent
- the exemplified compound (2-26) 49 9 mg, 1.32 mmo 1, 1.1 equivalents
- potassium chloroplatinate (II) 500 mg, 1.20 mmol, 1.0 equivalent
- the exemplary compound (2-73) 63-36 mg
- lithium hydroxide 168 mg, 3.00 mmo1, 2.5 equivalents
- acetone (10 mL) and water (10 mL) were sequentially added, and the mixture was stirred under reflux conditions for 1 hour. After recovering the acetone from the resulting suspension, the precipitated crude crystals were collected by filtration and washed with a saturated aqueous sodium hydrogen carbonate solution.
- an organic EL device having the configuration shown in FIG. 1 was produced.
- lead wires are respectively connected to an anode (f) and a cathode (a), so that a voltage can be applied between the anode (f) and the cathode (a).
- the anode (f) consists of an ITO film and is attached to a glass substrate (g).
- the hole transport layer (e) is formed by depositing a compound represented by the following formula (Hiichi NPD) on the anode (f) to a thickness of 40 nm by a vacuum evaporation method.
- the light-emitting layer (d) containing the host material and the doped phosphorescent light-emitting material was composed of a compound (CBP) represented by the following formula and a platinum complex (111) produced by Reference Example 9 and represented by the following formula. Both were formed by simultaneously depositing them on the hole transport layer (e) with a thickness of 35 nm by vacuum evaporation (3% deep).
- CBP compound represented by the following formula
- platinum complex 111
- the hole blocking layer (c) was formed by applying a compound (BCP) represented by the following formula to the light emitting layer (d) with a thickness of 10 nm by a vacuum evaporation method.
- the electron transport layer (b) was formed by applying a compound (Alq 3 ) represented by the following formula to the hole blocking layer (c) with a thickness of 35 nm by a vacuum evaporation method. ⁇
- the cathode (a) is formed by vacuum co-evaporation of Mg and Ag at a ratio of 10: 1 with a thickness of 100 nm in order from the electron transport layer (b) side. It was constituted by a laminate having a thickness of vacuum deposited.
- Example 2 The platinum complex (1-15) represented by the following formula, which has the same element structure as that of Example 1 and was produced in Reference Example 11 for the light-emitting layer (d), was replaced by a platinum complex (1-11-1). An alternative device was made. Table 2 summarizes the characteristics of this organic EL device.
- the light-emitting layer (d) is represented by the following formula (2, 3, 7, 8, 1, 1) as a well-characterized red phosphorescent material.
- Platinum (II) Pt (OEP)
- Pt Pt (OEP)
- Table 3 summarizes the characteristics of this organic EL device.
- the light-emitting device containing the platinum complex according to the present invention has excellent color purity, and also exhibits extremely excellent characteristics in external quantum efficiency and luminous efficiency. According to the present invention, various display devices, in particular, highly efficient organic EL devices Can be obtained.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/554,543 US20060210828A1 (en) | 2003-04-30 | 2004-04-23 | Light-emitting device |
EP04729268A EP1630217A1 (en) | 2003-04-30 | 2004-04-23 | Light-emitting device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003124882A JP2004335122A (ja) | 2003-04-30 | 2003-04-30 | 発光素子 |
JP2003-124882 | 2003-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004096946A1 true WO2004096946A1 (ja) | 2004-11-11 |
Family
ID=33410204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/005941 WO2004096946A1 (ja) | 2003-04-30 | 2004-04-23 | 発光素子 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060210828A1 (ja) |
EP (1) | EP1630217A1 (ja) |
JP (1) | JP2004335122A (ja) |
KR (1) | KR20060011965A (ja) |
TW (1) | TW200503581A (ja) |
WO (1) | WO2004096946A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006173588A (ja) * | 2004-11-17 | 2006-06-29 | Fuji Photo Film Co Ltd | 有機電界発光素子 |
US7361415B2 (en) * | 2004-04-16 | 2008-04-22 | The University Of Hong Kong | System and method for producing light with organic light-emitting devices |
US7649211B2 (en) | 2006-06-01 | 2010-01-19 | Semiconductor Energy Laboratory Co., Ltd. | Organic light emitting element |
US7691495B2 (en) | 2004-04-30 | 2010-04-06 | The University Of Hong Kong | Organic light-emitting devices |
US8278649B2 (en) | 2008-03-18 | 2012-10-02 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device and electronic device |
US9192017B2 (en) | 2008-03-18 | 2015-11-17 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device and electronic device |
US9397308B2 (en) | 2006-12-04 | 2016-07-19 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting element, light emitting device, and electronic device |
WO2020088582A1 (en) * | 2018-10-31 | 2020-05-07 | Versitech Limited | Platinum (ii) schiff base complexes with increased emission quantum yield for red oled applications |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4749744B2 (ja) * | 2004-03-31 | 2011-08-17 | 富士フイルム株式会社 | 有機電界発光素子 |
JP2007179950A (ja) * | 2005-12-28 | 2007-07-12 | Tdk Corp | Elパネル |
WO2008069153A1 (en) * | 2006-12-04 | 2008-06-12 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device, and electronic device |
EP1973386B8 (en) * | 2007-03-23 | 2016-01-13 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting device and electronic device |
US8779655B2 (en) * | 2007-07-07 | 2014-07-15 | Idemitsu Kosan Co., Ltd. | Organic electroluminescence device and material for organic electroluminescence device |
US8154195B2 (en) * | 2007-07-07 | 2012-04-10 | Idemitsu Kosan Co., Ltd. | Organic electroluminescence device and material for organic electroluminescence device |
US20090045731A1 (en) * | 2007-07-07 | 2009-02-19 | Idemitsu Kosan Co., Ltd. | Organic electroluminescence device and material for organic electroluminescence device |
TW200909560A (en) * | 2007-07-07 | 2009-03-01 | Idemitsu Kosan Co | Organic electroluminescence device and material for organic electroluminescence devcie |
US8211552B2 (en) * | 2007-07-07 | 2012-07-03 | Idemitsu Kosan Co., Ltd. | Organic electroluminescence device |
TWI479710B (zh) | 2007-10-19 | 2015-04-01 | Semiconductor Energy Lab | 發光裝置 |
EP2200407B1 (en) | 2008-12-17 | 2017-11-22 | Semiconductor Energy Laboratory Co., Ltd. | Light-Emitting element, light emitting device, and electronic device |
TWI528862B (zh) | 2009-01-21 | 2016-04-01 | 半導體能源研究所股份有限公司 | 發光元件,發光裝置以及電子裝置 |
US8039129B2 (en) * | 2009-04-06 | 2011-10-18 | Idemitsu Kosan Co., Ltd. | Organic electroluminescence device and material for organic electroluminescence device |
US8039127B2 (en) | 2009-04-06 | 2011-10-18 | Idemitsu Kosan Co., Ltd. | Organic electroluminescence device and material for organic electroluminescence device |
JP5981736B2 (ja) * | 2011-04-12 | 2016-08-31 | ユー・ディー・シー アイルランド リミテッド | 有機電界発光素子、並びに、該有機電界発光素子を用いた発光装置、表示装置及び照明装置 |
US20120273256A1 (en) * | 2011-04-29 | 2012-11-01 | Innovation & Infinity Global Corp. | Transparent conductive structure applied to a touch panel and method of making the same |
JP5780132B2 (ja) | 2011-05-19 | 2015-09-16 | Jnc株式会社 | ベンゾフルオレン化合物、該化合物を用いた発光層用材料および有機電界発光素子 |
TWI612054B (zh) | 2012-09-11 | 2018-01-21 | 捷恩智股份有限公司 | 有機電場發光元件、顯示裝置以及照明裝置 |
DE102013111552A1 (de) * | 2013-10-21 | 2015-04-23 | Osram Oled Gmbh | Organisches lichtemittierendes Bauelement |
CN105273712B (zh) * | 2014-07-11 | 2017-07-25 | 广东阿格蕾雅光电材料有限公司 | 用于发光二极管的发光材料 |
WO2018033820A1 (en) * | 2016-08-17 | 2018-02-22 | Semiconductor Energy Laboratory Co., Ltd. | Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device |
US10851127B2 (en) * | 2017-03-07 | 2020-12-01 | The University Of Hong Kong | Platinum complexes and apparatuses thereof |
CN109748936B (zh) * | 2017-11-02 | 2021-05-11 | 广东阿格蕾雅光电材料有限公司 | 一种有机金属配合物发光材料 |
CN109748850B (zh) * | 2017-11-02 | 2022-04-15 | 广东阿格蕾雅光电材料有限公司 | 含有机金属配合物发光材料的器件 |
US11462696B2 (en) | 2018-01-19 | 2022-10-04 | Semiconductor Energy Laboratory Co., Ltd. | Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH059470A (ja) * | 1991-02-06 | 1993-01-19 | Pioneer Electron Corp | 有機エレクトロルミネツセンス素子 |
JPH1067984A (ja) * | 1996-08-29 | 1998-03-10 | Futaba Corp | 有機エレクトロルミネッセンス素子用ドープ材料及び有 機エレクトロルミネッセンス素子 |
JP2000048960A (ja) * | 1998-07-04 | 2000-02-18 | Bayer Ag | アゾメチン―金属錯体を用いた電界発光アセンブリ |
JP2001003043A (ja) * | 1999-06-16 | 2001-01-09 | Mitsumi Electric Co Ltd | 有機電界発光体及びそれを用いた電界発光素子 |
WO2002031896A2 (en) * | 2000-10-10 | 2002-04-18 | E.I. Du Pont De Nemours And Company | Polymers having attached luminescent metal complexes and devices made with such polymers |
JP2003123981A (ja) * | 2001-10-12 | 2003-04-25 | Canon Inc | 有機発光素子 |
JP2003123980A (ja) * | 2001-10-12 | 2003-04-25 | Canon Inc | 有機発光素子 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6653654B1 (en) * | 2002-05-01 | 2003-11-25 | The University Of Hong Kong | Electroluminescent materials |
US7361415B2 (en) * | 2004-04-16 | 2008-04-22 | The University Of Hong Kong | System and method for producing light with organic light-emitting devices |
-
2003
- 2003-04-30 JP JP2003124882A patent/JP2004335122A/ja not_active Abandoned
-
2004
- 2004-04-23 EP EP04729268A patent/EP1630217A1/en not_active Withdrawn
- 2004-04-23 US US10/554,543 patent/US20060210828A1/en not_active Abandoned
- 2004-04-23 KR KR1020057020118A patent/KR20060011965A/ko not_active Application Discontinuation
- 2004-04-23 WO PCT/JP2004/005941 patent/WO2004096946A1/ja not_active Application Discontinuation
- 2004-04-30 TW TW093112217A patent/TW200503581A/zh unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH059470A (ja) * | 1991-02-06 | 1993-01-19 | Pioneer Electron Corp | 有機エレクトロルミネツセンス素子 |
JPH1067984A (ja) * | 1996-08-29 | 1998-03-10 | Futaba Corp | 有機エレクトロルミネッセンス素子用ドープ材料及び有 機エレクトロルミネッセンス素子 |
JP2000048960A (ja) * | 1998-07-04 | 2000-02-18 | Bayer Ag | アゾメチン―金属錯体を用いた電界発光アセンブリ |
JP2001003043A (ja) * | 1999-06-16 | 2001-01-09 | Mitsumi Electric Co Ltd | 有機電界発光体及びそれを用いた電界発光素子 |
WO2002031896A2 (en) * | 2000-10-10 | 2002-04-18 | E.I. Du Pont De Nemours And Company | Polymers having attached luminescent metal complexes and devices made with such polymers |
JP2003123981A (ja) * | 2001-10-12 | 2003-04-25 | Canon Inc | 有機発光素子 |
JP2003123980A (ja) * | 2001-10-12 | 2003-04-25 | Canon Inc | 有機発光素子 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7361415B2 (en) * | 2004-04-16 | 2008-04-22 | The University Of Hong Kong | System and method for producing light with organic light-emitting devices |
US7691495B2 (en) | 2004-04-30 | 2010-04-06 | The University Of Hong Kong | Organic light-emitting devices |
JP2006173588A (ja) * | 2004-11-17 | 2006-06-29 | Fuji Photo Film Co Ltd | 有機電界発光素子 |
US7649211B2 (en) | 2006-06-01 | 2010-01-19 | Semiconductor Energy Laboratory Co., Ltd. | Organic light emitting element |
US8076676B2 (en) | 2006-06-01 | 2011-12-13 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device and an electronic device which include two layers including the same light-emitting organic compound |
US8410492B2 (en) | 2006-06-01 | 2013-04-02 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device and an electronic device, which include two layers including same light-emitting organic compound |
US8860019B2 (en) | 2006-06-01 | 2014-10-14 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting device comprising light-emitting layer including two layers |
US9397308B2 (en) | 2006-12-04 | 2016-07-19 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting element, light emitting device, and electronic device |
US8278649B2 (en) | 2008-03-18 | 2012-10-02 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device and electronic device |
US9192017B2 (en) | 2008-03-18 | 2015-11-17 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device and electronic device |
US9224960B2 (en) | 2008-03-18 | 2015-12-29 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting element, light-emitting device, and electronic device |
WO2020088582A1 (en) * | 2018-10-31 | 2020-05-07 | Versitech Limited | Platinum (ii) schiff base complexes with increased emission quantum yield for red oled applications |
Also Published As
Publication number | Publication date |
---|---|
JP2004335122A (ja) | 2004-11-25 |
KR20060011965A (ko) | 2006-02-06 |
EP1630217A1 (en) | 2006-03-01 |
US20060210828A1 (en) | 2006-09-21 |
TW200503581A (en) | 2005-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004096946A1 (ja) | 発光素子 | |
JP4790298B2 (ja) | 良溶解性イリジウム錯体及び有機el素子 | |
US8268455B2 (en) | Organic compound for light-emitting device, light-emitting device, and image display apparatus | |
JP6193728B2 (ja) | アザ−ベンゾ縮合配位子を有するイリジウム錯体 | |
JP4786659B2 (ja) | 新しい有機発光素子材料およびこれを用いた有機発光素子(9) | |
JP5209701B2 (ja) | 有機電界発光素子 | |
JP5432147B2 (ja) | 有機金属錯体誘導体およびこれを用いた有機発光素子 | |
CN106674266B (zh) | 三亚苯硅烷主体 | |
KR20190088453A (ko) | 신규한 유기 발광 재료 | |
EP1577300A1 (en) | Platinum complexes | |
JP2004331508A (ja) | 白金錯体 | |
JP5009922B2 (ja) | 有機電界発光素子材料及び有機電界発光素子 | |
JP4221129B2 (ja) | 含窒素ヘテロ環化合物、有機発光素子材料、有機発光素子 | |
JPWO2004039914A1 (ja) | 発光素子 | |
JP7458483B2 (ja) | 金属錯体及びその用途 | |
US20180237463A1 (en) | Organic electroluminescent materials and devices | |
JP2006290781A (ja) | 良溶解性イリジウム錯体 | |
US20090001880A1 (en) | Organic electroluminescent device, an azepine compound, and a method for making the same | |
JP2006080419A (ja) | イリジウム錯体を含有する発光素子 | |
US20070202357A1 (en) | Organic electroluminescent element and compounds for use in the element | |
JP2005222794A (ja) | 有機電界発光素子および有機電界発光素子材料の調製方法 | |
JP2007258692A (ja) | 有機電界発光素子及び該素子に用いる化合物 | |
KR101647172B1 (ko) | 신규한 화합물 및 이를 이용한 유기 발광 소자 | |
CN113045577A (zh) | 电子传输材料及制备方法、有机电致发光器件和显示装置 | |
CN116425805A (zh) | 含螺环结构的四齿型铂配合物发光材料及其应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020057020118 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10554543 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004729268 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057020118 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2004729268 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10554543 Country of ref document: US |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2004729268 Country of ref document: EP |