Chiral iridium(iii) complexes with four-membered Ir-S-P-S chelating rings for high-performance circularly polarized OLEDs

Zhi-Ping Yan; Kang Liao; Hua-Bo Han; Jian Su; You-Xuan Zheng; Jing-Lin Zuo

doi:10.1039/c9cc03915e

Chiral iridium(iii) complexes with four-membered Ir-S-P-S chelating rings for high-performance circularly polarized OLEDs

Chem Commun (Camb). 2019 Jul 11;55(57):8215-8218. doi: 10.1039/c9cc03915e.

Authors

Zhi-Ping Yan¹, Kang Liao¹, Hua-Bo Han¹, Jian Su¹, You-Xuan Zheng¹, Jing-Lin Zuo¹

Affiliation

¹ State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China. yxzheng@nju.edu.cn.

PMID: 31231733
DOI: 10.1039/c9cc03915e

Abstract

Two series of chiral cyclometalated iridium(iii) complexes based on sulfur atom containing enantiopure BINOL derivatives were rapidly synthesized, which are endowed with varied chiroptical properties. Moreover, the circularly polarized OLEDs using enantiomers show a maximum luminance of above 40 000 cd m-2 and an external quantum efficiency of 23.6% with low efficiency roll-off as well as obvious CPEL properties.