Different from the previous design strategy, herein, a cationic Ir(iii) complex ([(ptbi)2Ir(bisq)]Cl) with a small chlorine as the counterion was synthesized, which realized the formation of a solid film via a vacuum-deposition process. The white OLED, employing it as an orange-emitting layer, achieved excellent performances with a brightness of 50 122 cd m-2, a CE of 25.5 cd A-1, an EQE of 13.1%, accompanied by a low CE efficiency roll-off of 4.7%. These are the best results among evaporated cationic Ir(iii)-based white OLEDs reported so far.

中文翻译：

---

可升华的阳离子Ir（iii）磷光体，使用氯作为抗衡离子，用于高性能单色和白色OLED。

与以前的设计策略不同，本文合成了带有少量氯作为抗衡离子的阳离子Ir（iii）络合物（[（ptbi）2Ir（bisq）] Cl），从而实现了通过真空法形成固体膜的方法，沉积过程。将其用作橙色发光层的白色OLED达到了出色的性能，其亮度为50122 cd m-2，CE为25.5 cd A-1，EQE为13.1％，并伴随着低的CE效率-从4.7％。这些是迄今为止报道的蒸发的基于阳离子Ir（iii）的白色OLED中最好的结果。