Nearly 100% Internal Quantum Efficiency in an Organic Blue-Light Electrophosphorescent Device Using a Weak Electron Transporting Material with a Wide Energy Gap

被引:339
作者
Xiao, Lixin [1 ,2 ,3 ]
Su, Shi-Jian [3 ]
Agata, Yuyo [3 ]
Lan, Hsinglin [4 ]
Kido, Junji [3 ,4 ]
机构
[1] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
[2] Peking Univ, Dept Phys, Beijing 100871, Peoples R China
[3] OITDA, Bunkyo Ku, Tokyo 1120014, Japan
[4] Yamagata Univ, Dept Polymer Sci & Engn, Yamagata 9928510, Japan
关键词
EMITTING DIODE; MOBILITY; ELECTROLUMINESCENCE; DERIVATIVES; COMPLEXES; EMISSION;
D O I
10.1002/adma.200802034
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A blue-light electrophosphorescence with an internal quantum efficiency of nearly 100%, much higher than that of a stronger electron transporting (ET) material, was achieved with a weak ET silane. This result contradicts the conventional notion that weak ET materials result in low efficiency.
引用
收藏
页码:1271 / +
页数:5
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