A Solution-Processed Resonance Host for Highly Efficient Electrophosphorescent Devices with Extremely Low Efficiency Roll-off

被引：71
作者：
Tao, Ye [1 ,2 ]
Guo, Xin [1 ,2 ]
Hao, Lin [1 ,2 ]
Chen, Runfeng [1 ,2 ]
Li, Huanhuan [3 ,4 ]
Chen, Yuehua [1 ,2 ]
Zhang, Xinwen [1 ,2 ]
Lai, Wenyong [3 ,4 ]
Huang, Wei [3 ,4 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Key Lab Organ Elect & Informat Displays, Nanjing 210023, Jiangsu, Peoples R China
[2] Nanjing Univ Posts & Telecommun, Natl Synergist Innovat Ctr Adv Mat SICAM, IAM, Nanjing 210023, Jiangsu, Peoples R China
[3] Nanjing Tech Univ Nanjing Tech, KLOFE, Nanjing 211816, Jiangsu, Peoples R China
[4] Nanjing Tech Univ Nanjing Tech, IAM, Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China
来源：
ADVANCED MATERIALS | 2015年 / 27卷 / 43期
基金：
中国国家自然科学基金;
关键词：
LIGHT-EMITTING-DIODES; EXTERNAL QUANTUM EFFICIENCY; BIPOLAR HOST; BLUE; PERFORMANCE; EMISSION; VOLTAGE; LAYER;
D O I：
10.1002/adma.201503108
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Solution-processible N-P=O resonance-host molecules are applied successfully in spin-coated phosphorescent light-emitting diodes (PHOLEDs) to selectively and self-adaptively tune the electrical properties for balanced charge transportation. The resonance-molecule-hosted PHOLEDs exhibit a high maximum quantum efficiency of 16.5% and a low efficiency roll-off down to 0.7%, highlighting the significant progress of these solution-processed PHOLEDs with high efficiency and flat efficiency roll-off achieved simultaneously.
引用
收藏
页码：6939 / +
页数：7
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