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
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

211 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

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