Semiconductor Energy Laboratory Co., Ltd.

Yoshimi Ishiguro

Sachiko Kawakami

Tatsuyoshi Takahashi

Satoshi Seo

Hiromi Seo

Takao Hamada

A novel heterocyclic compound is provided. In particular, a novel heterocyclic compound which can improve the element characteristics of a light-emitting element is provided. A novel light-emitting element with high emission efficiency and high heat resistance is provided. A heterocyclic compound represented by General Formula (G). A represents any of a dibenzothiophenyl group, a dibenzofuranyl group, and a carbazolyl group. DBq represents a dibenzo[f,h]quinoxalinyl group. In addition, n is 0 or 1. Each of Arto Arindependently represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms. In Arto Ar, the adjacent arylene groups may be bonded to each other to form a ring. When the adjacent arylene groups in Arto Arform a fluorene skeleton, the fluorene skeleton may have a substituent. 

Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device

A novel heterocyclic compound is provided. In particular, a novel heterocyclic compound which can improve the element characteristics of the light-emitting element is provided. The heterocyclic compound is represented by a general formula (G1)DBqArAr-A&#x2003;&#x2003;(G1)in which a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group and a substituted or unsubstituted benzobisbenzofuranyl group are bonded to each other via a substituted or unsubstituted arylene group. In the general formula (G1), DBq represents a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group, Arrepresents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, n represents 0 or 1, Arrepresents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and A represents a substituted or unsubstituted benzobisbenzofuranyl group. When the arylene group represented by Arand Arhas substituents, the substituents may be bonded to each other to form a ring.

Provided is a novel organic compound that is used as a host material in which a light-emitting substance is dispersed. The organic compound is represented by General Formula (G1). In the formula, A represents a substituted or unsubstituted dibenzofuran-diyl group, a substituted or unsubstituted dibenzothiophene-diyl group, a substituted or unsubstituted N-aryl-9H-carbazole-diyl group, or a substituted or unsubstituted N-alkyl-9H-carbazole-diyl group; Arand Areach independently represent a single-bond or a substituted or unsubstituted arylene group; Rto Rand Rto Reach independently represent hydrogen, an alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms; Xand Xeach independently represent a carbon atom or a nitrogen atom; and the carbon atom is bonded to hydrogen, an alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. 

Growing community of inventors

Kanagawa, Japan

Yoshimi Ishiguro