申请人:UDC IRELAND LIMITED
公开号:US11411185B2
公开(公告)日:2022-08-09
An organic electroluminescent device includes a pair of electrodes; and an organic layer between the pair of electrodes, which includes a light-emitting layer, wherein the organic layer contains a compound represented by the following formula (I); and the light-emitting layer contains a iridium complex phosphorescent material:
wherein R1, R2, R3, R4, R5, R6, R7 and R8 each represents a hydrogen atom or a substituent, and contiguous substituents of R1 to R8 may be bonded to each other to form a condensed ring; R9 represents an alkyl group, an alkenyl group, an aryl group, a hetero-aryl group, or a silyl group, and each of which group may be substituted with a substituent; and at least one of R1 to R9 represents a deuterium atom or a substituent containing a deuterium atom.
一种有机电致发光装置包括一对电极;以及位于这对电极之间的有机层,其中包括发光层,有机层含有下式(I)所代表的化合物;发光层含有铱络合物磷光材料:
其中 R1、R2、R3、R4、R5、R6、R7 和 R8 各自代表氢原子或取代基,R1 至 R8 的连续取代基可相互键合以形成缩合环;R9 代表烷基、烯基、芳基、杂芳基或硅烷基,其中每个基团可被取代基取代;以及 R1 至 R9 中至少有一个代表氘原子或含有氘原子的取代基。