Organic light-emitting diodes based on charge-neutral Os(II) emitters: generation of saturated red emission with very high external quantum efficiency

被引:127
作者
Tung, YL
Lee, SW
Chi, Y [1 ]
Tao, YT
Chien, CH
Cheng, YM
Chou, PT
Peng, SM
Liu, CS
机构
[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 300, Taiwan
[2] Acad Sinica, Inst Chem, Taipei 115, Taiwan
[3] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
[4] Natl Taiwan Univ, Instrumentat Ctr, Taipei 106, Taiwan
[5] Soochow Univ, Dept Chem, Taipei 111, Taiwan
关键词
D O I
10.1039/b414636k
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The OLED device using 6% of Os(fptz)(2)(PPh2Me)(2) as the dopant emitter in a CBP host and BPAPF as hole transporting material shows an external quantum efficiency of 15.3% and luminous efficiency of 21.3 cd A(-1) power efficiency of 6.3 Im W-1 at 20 mA cm(-2). An even higher external quantum efficiency of similar to20% was achieved at a low current density of similar to1 mA cm(-2).
引用
收藏
页码:460 / 464
页数:5
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