A platinum(II) complex bearing deprotonated 2-(diphenylphosphino)benzoic acid for superior phosphorescence of monomers.
The (ppy)-based Pt(II) complex (Pt-1) with deprotonated 2-(diphenylphosphino)benzoic acid as an anionic ligand displays phosphorescence of monomers with a remarkably higher quantum yield than that of the corresponding iridium complex (Ir-1). A prototype OLED using Pt-1 exhibits high performance with an external quantum efficiency of 4.93%.
The College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450052, P.R. China. dcx@zzu.edu.cn mpsong@zzu.edu.cn.
Bin
B
Zhang
Lina
L
Zhang
Chunmei
C
Liu
Yanyan
Y
Zhu
Mingsheng
M
Tang
Chenxia
C
Du
Maoping
M
Song