Solid-State White Light-Emitting Electrochemical Cells Using Iridium-Based Cationic Transition Metal Complexes | Zendy

HaiChing Su | Zendy; HsiaoFan Chen | Zendy; Fu-Chuan Fang | Zendy; Chih-Che Liu | Zendy; Chung-Chih Wu | Zendy; KenTsung Wong | Zendy; YiHung Liu | Zendy; ShieMing Peng | Zendy

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Solid-State White Light-Emitting Electrochemical Cells Using Iridium-Based Cationic Transition Metal Complexes

Author(s) -

HaiChing Su,

HsiaoFan Chen,

Fu-Chuan Fang,

Chih-Che Liu,

Chung-Chih Wu,

KenTsung Wong,

YiHung Liu,

ShieMing Peng

Publication year - 2008

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja076051e

Subject(s) - iridium , chemistry , cationic polymerization , electroluminescence , electrochemistry , transition metal , solid state , electrochemical cell , white light , photochemistry , optoelectronics , polymer chemistry , organic chemistry , materials science , electrode , layer (electronics) , catalysis

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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