Simultaneous optimization of charge-carrier balance and luminous efficacy in highly efficient white polymer light-emitting devices

Jianhua Zou, 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, Wai Yeung WONG

Research output: Contribution to journalArticlepeer-review

194 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)2976-2980
Number of pages5
JournalAdvanced Materials
Volume23
Issue number26
DOIs
Publication statusPublished - 12 Jul 2011

Scopus Subject Areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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