Fluorene derivative, light-emitting elements, light-emitting device, electronic device, and lighting device
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US10553797B2
公开(公告)日:2020-02-04
An object is to provide a light-emitting element having high light-emission efficiency by provision of a novel fluorene derivative as represented by General Formula (G1) below.
In the formula, R1 to R8 independently represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted biphenyl group. Further, α1 to α4 independently represent any of a substituted or unsubstituted arylene group having 6 to 12 carbon atoms. Furthermore, Ar1 and Ar2 independently represent any of an aryl group having 6 to 13 carbon atoms in a ring and Ar3 represents an alkyl group having 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms. J, k, m, and n each independently represent 0 or 1.
目的是通过提供一种新型芴衍生物,如下文通式 (G1) 所示,提供一种具有高发光效率的发光元件。
式中,R1 至 R8 独立地代表氢原子、具有 1 至 6 个碳原子的烷基、取代或未取代的苯基、取代或未取代的联苯基中的任意一种。此外,α1 至 α4 独立地代表具有 6 至 12 个碳原子的取代或未取代的芳烯基团中的任一个。此外,Ar1 和 Ar2 独立地代表在环上具有 6 至 13 个碳原子的芳基,Ar3 代表具有 1 至 6 个碳原子的烷基或具有 6 至 12 个碳原子的取代或未取代的芳基。J、k、m 和 n 各自独立地代表 0 或 1。