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A New Class of Luminescent Platinum(II) Complexes of 1,3‐Bis( N ‐alkylbenzimidazol‐2′‐yl)benzene‐Type Ligands and Their Application Studies in the Fabrication of Solution‐Processable Organic Light‐Emitting Devices
Author(s) -
Lam Elizabeth SukHang,
Tam Anthony YiuYan,
Chan MeiYee,
Yam Vivian WingWah
Publication year - 2014
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.201400071
Subject(s) - oled , electroluminescence , phosphorescence , platinum , chemistry , dopant , benzene , luminescence , ligand (biochemistry) , photochemistry , phosphorescent organic light emitting diode , electrochemistry , fluorescence , polymer chemistry , organic chemistry , doping , catalysis , optoelectronics , electrode , materials science , biochemistry , physics , receptor , layer (electronics) , quantum mechanics
A novel class of luminescent platinum(II) bzimb (1,3‐bis( N ‐alkylbenzimidazol‐2′‐yl)benzene) complexes has been designed and synthesized. With the incorporation of various substituents on the anionic phenyl ring of the bzimb ligand, the emission color can be readily tuned. Their photophysical, electrochemical and electroluminescence properties have been studied. These platinum(II) bzimb complexes have been demonstrated to be capable of serving as phosphorescent dopants. Efficient solution‐processable OLEDs (organic light‐emitting devices), with a maximum external quantum efficiency of up to 4.85 %, can be achieved. This class of platinum(II) bzimb complexes represents a promising class of phosphorescent dopants for solution‐processable OLEDs.