Highly Efficient Organic Blue-and White-Light-Emitting Devices Having a Carrier- and Exciton-Confining Structure for Reduced Efficiency Roll-Off

被引:762
作者
Su, Shi-Jian [1 ]
Gonmori, Eisuke [2 ]
Sasabe, Hisahiro [1 ]
Kido, Junji [2 ]
机构
[1] Optoelect Ind & Technol Dev Assoc, Bunkyo Ku, Tokyo 1120014, Japan
[2] Yamagata Univ, Dept Polymer Sci & Engn, Fac Engn, Yamagata 9928510, Japan
关键词
D O I
10.1002/adma.200801375
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Highly efficient blue and white OLEDs with reduced efficiency roll-off based on a carrier- and exciton-confining structure are developed. Record power efficiencies of 46 and 44 lm W-1 and an external quantum efficiency of 25% at the illumination-relevant luminance of 1000 cd m(-2) are achieved for the blue and white OLEDs, respectively, without the use of any outcoupling techniques.
引用
收藏
页码:4189 / +
页数:7
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