Solid-state white light-emitting electrochemical cells using iridium-based cationic transition metal complexes

被引:261
作者
Su, Hai-Ching [1 ,2 ]
Chen, Hsiao-Fan [3 ]
Fang, Fu-Chuan [3 ]
Liu, Chih-Che [1 ,2 ]
Wu, Chung-Chih [1 ,2 ]
Wong, Ken-Tsung [3 ]
Liu, Yi-Hung [3 ]
Peng, Shie-Ming [3 ]
机构
[1] Natl Taiwan Univ, Dept Elect Engn, Grad Inst Electroopt Engn, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Dept Elect Engn, Grad Inst Elect Engn, Taipei 10617, Taiwan
[3] Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan
关键词
D O I
10.1021/ja076051e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
White electroluminescent (EL) emission from single-layered solid-state light-emitting electrochemical cells (LECs) based on host-guest cationic iridium complexes has been successfully demonstrated. The devices show white EL spectra (Commission Internationale de l'Eclairage coordinates ranging from (x, y) = (0.45, 0.40) to (0.35, 0.39) at 2.9-3.3 V with high color rendering indices up to 80. Peak external quantum efficiency and peak power efficiency of the white LEC reach 4% and 7.8 Im/W, respectively. These results suggest that white LECs based on host-guest cationic transition metal complexes may be a promising alternative for solid-state lighting technologies.
引用
收藏
页码:3413 / 3419
页数:7
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