Toray Industries, Inc.

Shinichi Matsuki

Tsuyoshi Tominaga

Daisaku Tanaka

Kazumasa Nagao

Takeshi Ikeda

Takeshi Arai

Hirotoshi Sakaino

Atsushi Ikeda

Jinwoo Kwon

Kojiro Naito

The present invention provides an organic thin film light emitting device having high luminous efficiency and durable life realized by using a benzindolocarbazole derivative as represented by either general formula (1-1) or (1-2) given below: [Chemical compound 1] wherein Rto Rmay be identical to or different from each other and are selected from the group consisting of a hydrogen atom, alkyl group, cycloalkyl group, heterocyclic group, amino group, alkenyl group, cycloalkenyl group, alkynyl group, alkoxy group, alkylthio group, aryl ether group, aryl thioether group, aryl group, heteroaryl group, halogen atom, carbonyl group, carboxyl group, oxycarbonyl group, carbamoyl group, silyl group, and &#x2014;P(&#x2550;O)RR; Rand Rrepresent either an aryl group or a heteroaryl group; Rand Rmay be condensed to form a ring; Lto Lindependently represent a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group; and Ato Aindependently represent an amino group, aryl group, heterocyclic group, or heteroaryl group.

Benzindolocarbazole derivative, light-emitting element material produced using same, and light-emitting element

An organic thin film light-emitting element having both high luminous efficiency and high durability can be provided using a light-emitting element material that comprises a compound having a specified carbazole skeleton.

Light-emitting device material and light-emitting device

Provided are a light emitting device material which contains a compound having a carbazole skeleton of a specific structure and which makes it possible to achieve a light emitting device having both high luminance efficiency and durability; and a light emitting device using the light emitting device material.

Light emitting device material and light emitting device

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Otsu, Japan

Shinichi Matsuki