申请人:Universal Display Corporation
公开号:US10043987B2
公开(公告)日:2018-08-07
A compound having a structure according Formula Ir(LA)n(LB)3−n:
is described. In the structure of Formula Ir(LA)n(LB)3−n: A1, A2, A3, A4, A5, A6, A7, and A8 are each carbon or nitrogen; at least one of A1, A2, A3, A4, A5, A6, A7, and A8 is nitrogen; ring B is bonded to ring A through a C—C bond; the iridium is bonded to ring A through an Ir—C bond; X is O, S, or Se; R1, R2, R3, and R4 each independently represent no substitutions up to the maximum possible substitutions; any adjacent substitutions in R1, R2, R3, and R4 are optionally linked together to form a ring; each R1, R2, R3, R4, and R5 is independently selected from a variety of substituents; and n is an integer from 1 to 2. Formulations and devices, such as an OLEDs, that include the compound of Formula Ir(LA)n(LB)3−n are also described.
具有如下结构式的化合物 Ir(LA)n(LB)3-n:
的化合物。在式 Ir(LA)n(LB)3-n 的结构中:A1、A2、A3、A4、A5、A6、A7 和 A8 各自是碳或氮;A1、A2、A3、A4、A5、A6、A7 和 A8 中至少有一个是氮;环 B 通过 C-C 键与环 A 结合;铱通过 Ir-C 键与环 A 结合;X 是 O、S 或 Se;R1、R2、R3 和 R4 各自独立地代表无取代基,直至最大可能的取代基;R1、R2、R3 和 R4 中的任何相邻取代基可任选连接在一起形成一个环;R1、R2、R3、R4 和 R5 各自独立地选自各种取代基;以及 n 是 1 到 2 的整数。此外,还介绍了包括式 Ir(LA)n(LB)3-n 化合物的制剂和设备,如有机发光二极管。