Synthesis and Electroluminescence Characterization of Mixed-C∧N Ligand Tris-cyclometalated Ir(III) Complexes

被引：0
作者：
Ma Xiaoyu [1 ]
Liang Jie [1 ]
Ye Ling [1 ]
Fan Yong [1 ]
Xu Jianing [1 ]
Ye Kaiqi [1 ]
机构：
[1] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Jilin, Peoples R China
来源：
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2018年 / 39卷 / 10期
关键词：
Electrophosphorescence; Iridium complex; Mixed-(CN)-N-boolean AND ligand; LIGHT-EMITTING DEVICES; HIGH-EFFICIENCY; IRIDIUM COMPLEXES; HOST; EMISSION; PROPERTY; POLYMERS; OLEDS;
D O I：
10.7503/cjcu20180334
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two novel mixed 4-methyl-2, 5-diphenylpyridine (MDP)/5-methyl-2-phenylpyridine (PMP) tris-cyclometalated iridium complexes Ir(MDP)(2)(PMP) (complex 1) and Ir(MDP) (PMP)(2)(complex 2) have been synthesized and characterized systematically in terms of their photophysical and electrochemical properties, and the effect of the molecular and the stacking structure on the photoelectric performance was investigated through the single crystal structure and theoretical calculation. The phosphorescent organic light. emitting diodes(PhOLEDs) based on both new phosphors showed the rather high maximum external quantum efficiency(EQE) of 22.4% and 20.7%, and maximum power efficiency(PE) values of 86.0 and 77.5 lm/W respectively, with the low efficiency roll-off.
引用
收藏
页码：2129 / 2135
页数：7
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