Abstract: A high-molecular-weight compound having at least one substituted triarylamine structural unit represented by the following general formula (1), further including a structural unit having at least one aromatic hydrocarbon ring or a structural unit having a triarylamine skeleton in addition to the at least one substituted triarylamine structural unit, and having a weight average molecular weight of 10,000 or more and 1,000,000 or less in terms of polystyrene and no a crosslinker, wherein the high-molecular-weight compound is used in an organic EL device as a constituent material of at least one organic layer. A polymer material having excellent hole injection/transport performance, electron blocking capability, high heat resistance, and high stability in a thin-film state for use in a polymer organic EL device, and an organic EL device having a low drive voltage, high light emission efficiency, and a long lifetime using this polymer material.

Abstract: The present invention provides an indenocarbazole compound characterized by having hole transporting properties, being used as a constituent material of an organic electroluminescence device, and being represented by the following general formula (1), and an organic electroluminescence device having a pair of electrodes and at least one organic layer sandwiched therebetween is characterized in that the indenocarbazole compound is used as a constituent material of at least one organic layer. The indenocarbazole compound according to the present invention has (1) excellent hole transporting properties, (2) excellent electron blocking properties, (3) a stable thin film state, and excellent heat resistance. The organic electroluminescence device according to the present invention has a high light-emitting efficiency and high brightness.

Abstract: It is an object of the present invention to provide a high molecular weight compound that has excellent hole-injecting/transporting performance, is capable of blocking electrons, and is highly stable in a thin film state. It is another object of the invention to provide a light emitting diode with high luminous efficacy and a long lifespan, containing an organic layer (thin film) made of the above-described high molecular weight compound. The high molecular weight compound according to the present invention includes a repeating unit constituted by a specific triarylamine structural unit and a specific bonding structural unit, and has a weight average molecular weight in terms of polystyrene of 10,000 or more and less than 1,000,000.

Abstract: A material for an organic electroluminescent device that is excellent in hole injection and transport abilities, electron blocking ability, stability in a thin film state, and durability is provided as a material for an organic electroluminescent device having high efficiency and high durability. Further, an organic electroluminescent device having low driving voltage, high efficiency, and a long lifetime is provided by combining the material with various materials for an organic EL device that is excellent in hole and electron injection and transport abilities, electron blocking ability, thin film stability, and durability, in such a manner that the characteristics of the materials can be effectively exhibited. An organic electroluminescent device comprising at least an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer comprises an arylamine compound of the following general formula (1).

Abstract: [Object] To provide a polymer material having excellent hole injection/transport performance, electron blocking capability, high heat resistance, and high stability in a thin-film state for use in a polymer organic EL device, and provide an organic EL device having a low drive voltage, high light emission efficiency, and a long lifetime using this polymer material.

Abstract: Provided are: a trisubstituted benzene compound represented by general formulae (1) and (2); and an organic electroluminescence (EL) element having a pair of electrodes and at least a pair of organic layers interposed therebetween, the organic EL element being characterized in that said compound is used as a constituent material for at least one organic layer.

Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by the following general formula (1), where AR1, AR2, and L each independently represent a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, n is an integer of 1 to 3, Ar1 and Ar2 each independently represent an aryl group or a heteroaryl group, and R1, R2, and R3 each independently represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group having 1 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, a cycloalkyloxy group having 5 to 10 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, an aryloxy group, or a heteroaryl group.

Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by a general formula (1) below, where Ar1 and Ar2 are a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, R1 and R2 represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group, a cycloalkyl group, an alkenyl group, an alkyloxy group, or a cycloalkyloxy group, X, Y and Z are, on the condition that at least one of them is an aryl group or a heteroaryl group, an aryl group, a heteroaryl group, or a group similar to the groups represented by R1 and R2 above.

Abstract: It is an object of the present invention to provide a high molecular weight compound that has excellent hole injection and transport performance, is capable of blocking electrons, and is highly stable as a thin film. It is another object of the present invention to provide an organic EL element that includes an organic layer (thin film) made of the above-described high molecular weight compound, wherein the organic EL element has high light emission efficiency and a long lifespan. The high molecular weight compound according to the present invention includes a repeating unit represented by a general formula (3), that is constituted by a specific triarylamine structural unit and a specific bonding structural unit, and has a weight average molecular weight of 10,000 or more and less than 1,000,000 on a polystyrene basis.

Abstract: The organic EL device of the present invention has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, and the hole transport layer contains an arylamine compound represented by the following general formula (1): where Ar1 to Ar4 each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group.

Abstract: According to the present invention, there are provided a pyrimidine derivative represented by a general formula (1) indicated below, and an organic electroluminescent device comprising a pair of electrodes, and at least one organic layer sandwiched therebetween, wherein the pyrimidine derivative is used as a constituent material for the at least one organic layer. The pyrimidine derivative of the present invention is a material for a high efficiency, high durability organic electroluminescent device, is excellent in electron injection/transport performance, has hole blocking capability, and excels in characteristics.

Abstract: The present invention provides an indenocarbazole compound characterized by having hole transporting properties, being used as a constituent material of an organic electroluminescence device, and being represented by the following general formula (1), and an organic electroluminescence device having a pair of electrodes and at least one organic layer sandwiched therebetween is characterized in that the indenocarbazole compound is used as a constituent material of at least one organic layer. The indenocarbazole compound according to the present invention has (1) excellent hole transporting properties, (2) excellent electron blocking properties, (3) a stable thin film state, and excellent heat resistance. The organic electroluminescence device according to the present invention has a high light-emitting efficiency and high brightness.

Abstract: An organic electroluminescent device having high luminous efficiency, low driving voltage, and particularly a long lifetime is provided by combining various materials for an organic electroluminescent device, which have excellent hole and electron injection/transport performances, electron blocking ability, stability in a thin-film state, and durability as materials for an organic electroluminescent device having high luminous efficiency and high durability so as to allow the respective materials to effectively reveal their characteristics. In the organic electroluminescent device having at least an anode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole transport layer includes an arylamine compound represented by the following general formula (1), and the light emitting layer includes an amine derivative of the following general formula (2) having a condensed ring structure.

Abstract: According to the present invention, there are provided pyrimidine derivatives represented by the following general formula (1). The pyrimidine derivatives of the invention are novel compounds and feature (1) good electron injection property, (2) high electron mobility, (3) excellent hole blocking property, (4) good stability in their form of thin films, and (5) excellent heat resistance.

Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by a general formula (1) below, where Ar1 and Ar2 are a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, R1 and R2 represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group, a cycloalkyl group, an alkenyl group, an alkyloxy group, or a cycloalkyloxy group, X, Y and Z are, on the condition that at least one of them is an aryl group or a heteroaryl group, an aryl group, a heteroaryl group, or a group similar to the groups represented by R1 and R2 above.

Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by the following general formula (1), where AR1, AR2, and L each independently represent a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, n is an integer of 1 to 3, Ar1 and Ar2 each independently represent an aryl group or a heteroaryl group, and R1, R2, and R3 each independently represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group having 1 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, a cycloalkyloxy group having 5 to 10 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, an aryloxy group, or a heteroaryl group.

Abstract: A material for an organic electroluminescent device that is excellent in hole injection and transport abilities, electron blocking ability, stability in a thin film state, and durability is provided as a material for an organic electroluminescent device having high efficiency and high durability. Further, an organic electroluminescent device having low driving voltage, high efficiency, and a long lifetime is provided by combining the material with various materials for an organic EL device that is excellent in hole and electron injection and transport abilities, electron blocking ability, thin film stability, and durability, in such a manner that the characteristics of the materials can be effectively exhibited. An organic electroluminescent device comprising at least an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer comprises an arylamine compound of the following general formula (1).

Abstract: An organic electroluminescent device having high luminous efficiency, low driving voltage, and particularly a long lifetime is provided by combining various materials for an organic electroluminescent device, which have excellent hole and electron injection/transport performances, electron blocking ability, stability in a thin-film state, and durability as materials for an organic electroluminescent device having high luminous efficiency and high durability so as to allow the respective materials to effectively reveal their characteristics. In the organic electroluminescent device having at least an anode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole transport layer includes an arylamine compound represented by the following general formula (1), and the light emitting layer includes an amine derivative of the following general formula (2) having a condensed ring structure.

Abstract: According to the present invention, there are provided pyrimidine derivatives represented by the following general formula (1). The pyrimidine derivatives of the invention are novel compounds and feature (1) good electron injection property, (2) high electron mobility, (3) excellent hole blocking property, (4) good stability in their form of thin films, and (5) excellent heat resistance.

Abstract: According to the present invention, there are provided a pyrimidine derivative represented by a general formula (1) indicated below, and an organic electroluminescent device comprising a pair of electrodes, and at least one organic layer sandwiched therebetween, wherein the pyrimidine derivative is used as a constituent material for the at least one organic layer. The pyrimidine derivative of the present invention is a material for a high efficiency, high durability organic electroluminescent device, is excellent in electron injection/transport performance, has hole blocking capability, and excels in characteristics.