High-efficiency single emissive layer white organic light-emitting diodes based on solution-processed dendritic host and new orange-emitting iridium complex.

Zhang, Baohua; Tan, Guiping; Lam, Ching-Shan; Yao, Bing; Ho, Cheuk-Lam; Liu, Lihui; Xie, Zhiyuan; Wong, Wai-Yeung et al. · Adv Mater · 2012

basic_science · Level V

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Abstract

An extremely high-efficiency solution-processed white organic light-emitting diode (WOLED) is successfully developed by simultaneously using an ideal dendritic host material and a novel efficient orange phosphorescent iridium complex. The optimized device exhibits forward-viewing efficiencies of 70.6 cd A(-1) , 26.0%, and 47.6 lm W(-1) at a luminance of 100 cd m(-2) , respectively, promising the low-cost solution-processed WOLEDs a bright future as the next generation of illumination sources.

Medical subject headings