申请人:Nippon Steel & Sumikin Chemical Co., Ltd.
公开号:EP3439058A1
公开(公告)日:2019-02-06
Provided is an organic EL device that exhibits high luminous efficiency and has high stability when driven despite having low voltage. The organic electroluminescent device is obtained by laminating an anode, organic layers and a cathode on a substrate, wherein at least one of the organic layers contains (i) a compound represented by chemical formula (1) below, and (ii) a carborane compound having one or more divalent carborane groups and an aromatic group substituted for the carborane group. In the formulas, X1 and X2 represent NR1, PR2, O, S, Se, CR3R4 or SiR5R6 and Y represents a single bond or aromatic group.
本发明提供了一种有机电致发光器件,尽管电压较低,但其发光效率高,驱动时稳定性高。该有机电致发光器件是通过在基板上层叠阳极、有机层和阴极而获得的,其中至少一个有机层包含(i) 下文化学式(1)所代表的化合物,和(ii) 具有一个或多个二价硼烷基团和一个芳香基团取代硼烷基团的硼烷化合物。在化学式中,X1 和 X2 代表 NR1、PR2、O、S、Se、CR3R4 或 SiR5R6,Y 代表单键或芳香基团。