Hodogaya Chemical Co., Ltd.

Junichi Izumida

Hiroki Hirai

Takeshi Yamamoto

Norimasa Yokoyama

Shuichi Hayashi

Hideyoshi Kitahara

Kazunori Togashi

Mari Kaneko

Takehiro Takahashi

Kouki Kase

Mika Shinoda

Jae-Geon Lim

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.

High molecular weight triarylamine compound comprising terphenyl structure in molecular main chain and organic electroluminescent element comprising said high molecular weight compound

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.

Indenocarbazole compound and organic electroluminescence device

A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by the following general formula (1), 

High molecular weight compound containing substituted triarylamine structural unit

A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by a general formula (1) below, 

High-molecular-weight compound having substituted triarylamine skeleton

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Tokyo, Japan

Junichi Izumida