Department of Chemistry
Simultaneous optimization of charge-carrier balance and luminous efficacy in highly efficient white polymer light-emitting devices
White polymer light-emitting devices with a peak forward-viewing power efficiency close to 40 lm W-1, corresponding to an external quantum efficiency of 28.8% and a luminous efficiency of 60 cd A-1, are demonstrated. The devices are based on two newly synthesized yellow-emitting iridium complexes functionalized with the sterically hindered diarylfluorene chromophores and are fabricated by a simple solution-processing method. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Publication Title
Zou, Jianhua, Hao Wu, Ching-Shan Lam, Chuandao Wang, Jing Zhu, Chengmei Zhong, Sujun Hu, Cheuk-Lam Ho, Gui-Jiang Zhou, Hongbin Wu, Wallace C. H. Choy, Junbiao Peng, Yong Cao, and Wai-Yeung Wong. "Simultaneous optimization of charge-carrier balance and luminous efficacy in highly efficient white polymer light-emitting devices." Advanced Materials 23.26 (2011): 2976-2980.