Su Hai-Ching, Chen Hsiao-Fan, Fang Fu-Chuan, Liu Chih-Che, Wu Chung-Chih, Wong Ken-Tsung, Liu Yi-Hung, Peng Shie-Ming
Department of Electrical Engineering, Graduate Institute of Electro-optical Engineering, National Taiwan University, Taipei 10617, Taiwan.
J Am Chem Soc. 2008 Mar 19;130(11):3413-9. doi: 10.1021/ja076051e. Epub 2008 Feb 27.
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 lm/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.
基于主体 - 客体阳离子铱配合物的单层固态发光电化学电池(LEC)成功实现了白色电致发光(EL)发射。这些器件在2.9 - 3.3V时呈现白色EL光谱(国际照明委员会坐标范围为(x, y) = (0.45, 0.40)至(0.35, 0.39)),显色指数高达80。白色LEC的峰值外量子效率和峰值功率效率分别达到4%和7.8 lm/W。这些结果表明,基于主体 - 客体阳离子过渡金属配合物的白色LEC可能是固态照明技术的一种有前途的替代方案。