Strong luminescent iridium complexes with C∧N-N structure in ligands and their potential in efficient and thermally stable phosphorescent OLEDs

Bao Xiu Mi, Peng Fei Wang, Zhi Qiang Gao, Chun Sing Lee, Shuit Jong Lee, Hui Ling Hong, Xiao Ming Chen, Man Shing Wong, Ping Fang Xia, Kok Wai Cheah, Chin Hsin Chen, Wei Huang