Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US11522138B2
公开(公告)日:2022-12-06
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
1
). 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 Ar
1
to Ar
4
independently represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms. In Ar
1
to Ar
4
, the adjacent arylene groups may be bonded to each other to form a ring. When the adjacent arylene groups in Ar
1
to Ar
4
form a fluorene skeleton, the fluorene skeleton may have a substituent.
本研究提供了一种新型杂环化合物。特别是提供了一种可改善发光元件元件特性的新型杂环化合物。提供了一种具有高发射效率和高耐热性的新型发光元件。由通式(G
1
).A 代表二苯并噻吩基、二苯并呋喃基和咔唑基中的任一个。DBq 代表二苯并[f,h]喹喔啉基。此外,n 为 0 或 1。Ar
1
至 Ar
4
分别代表具有 6 至 10 个碳原子的取代或未取代芳烯基团。在 Ar
1
至 Ar
4
中,相邻的芳烯基团可相互键合形成一个环。当 Ar
1
至 Ar
4
形成芴骨架时,芴骨架可具有取代基。