ORGANIC ELECTROLUMINESCENCE DEVICE AND POLYCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Samsung Display Co., Ltd.
公开号:EP3663300A1
公开(公告)日:2020-06-10
An organic electroluminescence device of an embodiment includes a first electrode, a second electrode and a plurality of organic layers disposed between the first electrode and the second electrode, in which at least one of the organic layers includes a polycyclic compound including a plurality of electron donors and an electron acceptor connecting the electron donors, at least one of the electron donors is a condensed ring including a borepine core, and the electron acceptor includes a phenyl group including, as a substituent, at least one cyano group or a heterocycle including at least one nitrogen atom, or a heteroaryl group including an oxygen atom or a sulfur atom for forming a ring, thereby achieving improved emission efficiency.
一个实施例的有机电致发光器件包括第一电极、第二电极和设置在第一电极和第二电极之间的多个有机层,其中至少一个有机层包括多环化合物,该化合物包括多个电子供体和连接电子供体的电子受体、电子供体中至少有一个是包括孔雀石核的缩合环,而电子受体包括作为取代基的苯基,该苯基包括至少一个氰基或包括至少一个氮原子的杂环,或包括氧原子或硫原子的杂芳基,以形成一个环,从而实现更高的发射效率。