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: The present invention relates to an organic electroluminescent element (organic EL element) including at least an anode, a first hole transport layer, a second hole transport layer, a blue light-emitting layer, an electron transport layer, and a cathode in this order, in which the second hole transport layer contains an arylamine compound represented by the following general formula (1).

Abstract: It is an object of the present invention to provide, as a material for a highly efficient and highly durable organic EL device, an organic compound with excellent properties including excellent hole-injecting/transporting performance, electron-blocking capability, and high stability in the form of a film. It is another object thereof to provide a highly efficient and highly durable organic EL device by using this compound. The present invention is directed to an arylamine compound represented by a general formula (1) below: where Ar1 and Ar2 represent a substituted or unsubstituted aromatic hydrocarbon group or the like, Ar3 and Ar4 represent a substituted or unsubstituted phenyl group or the like, L represents a substituted or unsubstituted divalent aromatic hydrocarbon group or the like, R1 to R3 represent a hydrogen atom, for example, and n is an integer of 1 to 2.

Abstract: An object is to provide a material for an organic EL device having excellent hole injection and transport performance, electron blocking ability, stability in a thin film state, and durability, and further to provide an organic EL device having high efficiency, a low driving voltage, and a long lifetime by combining the material with various materials for an organic EL device having excellent hole and electron injection and transport performance, electron blocking ability, stability in a thin film state, and durability in such a manner that the characteristics of each of the materials can be effectively exhibited. An organic EL device was fabricated by focusing on the fact that a triarylamine compound having a specific structure has excellent hole injection and transport ability, thin film stability, and durability, and selecting a specific arylamine compound as a material for forming a second hole transport layer, and the invention was completed.

Abstract: The triarylamine compound having a specific structure in the present invention is excellent in hole injection/transport ability, stability and durability of thin film. By selecting the triarylamine compound having a specific structure as the material for the hole transport layer, holes injected from the anode side can be efficiently transported. Furthermore, various organic EL devices combining luminescent materials having a specific structure or the like exhibit good device characteristics. The triarylamine compound having a specific structure in the present invention is excellent in hole injection/transport ability, stability and durability of thin film. By selecting the triarylamine compound having a specific structure as the material for the hole transport layer, holes injected from the anode side can be efficiently transported. Furthermore, various organic EL devices combining luminescent materials having a specific structure or the like exhibit good device characteristics.

Abstract: An objective of the invention is to provide, as a material for highly efficient, highly durable organic EL devices, an organic EL device material having excellent hole injectability and transportability, electron blockability, high stability in a thin-film state, and excellent durability, and also to provide a highly efficient, highly durable organic EL device by using this compound. The present invention concerns an arylamine compound represented by general formula (1). (In the formula, Ar1, Ar2, Ar3, and Ar4 each represent a substituted or unsubstituted aromatic hydrocarbon group, etc.; L1 and L2 each represent a divalent substituted or unsubstituted aromatic hydrocarbon group, etc.; R1 to R7 each represent a hydrogen atom, a deuterium atom, etc.; and m and n may be the same or different from one another, and each represent an integer from 0 to 2, wherein L1 represents a single bond when m is 0, and L2 represents a single bond when n is 0.

Abstract: An organic electroluminescent element including an anode and a cathode and including, between the anode and the cathode, at least a first hole transport layer, a second hole transport layer, a blue-light-emitting layer, and an electron transport layer disposed in this order from the anode side, in which at least one of the layers disposed between the first hole transport layer and the electron transport layer includes an arylamine compound represented by general formula (1).

Abstract: An object of the present invention is to provide a material for a highly efficient and highly durable organic EL device, and specifically, an organic compound with excellent properties including excellent hole-injecting/transporting performance, electron-blocking capability, and high stability in the form of a thin film. Another object of the present invention is to provide a highly efficient and highly durable organic EL device by using this compound. The present invention is directed to an arylamine compound having a fluorenyl skeleton-containing heterocycle structure, with excellent heat resistance and good hole-transporting capability. An organic EL device including this compound in its hole-transporting layer, electron-blocking layer, light-emitting layer, or hole-injecting layer exhibited good device characteristics.

Abstract: It is an object of the present invention to provide a polymer organic EL element that has a low driving voltage, high light emission efficiency, and a long lifespan. The present invention provides an organic electroluminescence element having a pair of electrodes and at least one organic layer between the electrodes, wherein the organic layer is constituted by two or more high molecular weight compounds including at least high molecular weight compounds ? and ?, and the high molecular weight compound ? has a substituted triarylamine structural unit represented by a general formula (1) below and has a weight average molecular weight of 10,000 or more and less than 1,000,000 in terms of polystyrene. For the symbols in the formula, see the Description.

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 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: 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: The present invention provides an organic EL device having at least an anode, a hole-transporting layer, a luminous layer, an electron-transporting layer and a cathode arranged in this order, wherein the hole-transporting layer contains an arylamine compound represented by the following general formula (1). The organic EL device of the present invention has a high efficiency, drives on a low voltage, and features a specifically long life.