Solid-State White Light-Emitting Electrochemical Cells Using Iridium-Based Cationic Transition Metal Complexes
Journal of the American Chemical Society2008Vol. 130(11), pp. 3413–3419
Citations Over TimeTop 1% of 2008 papers
Hai‐Ching Su, Hsiao‐Fan Chen, Fu-Chuan Fang, Chih-Che Liu, Chung-Chih Wu, Ken‐Tsung Wong, Yi‐Hung Liu, Shie‐Ming Peng
Abstract
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.
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