A non-doped phosphorescent organic light-emitting device with above 31% external quantum efficiency

Qi Wang, Iain W.H. Oswald, Xiaolong Yang, Guijiang Zhou, Huiping Jia, Qiquan Qiao, Yonghua Chen, Jason Hoshikawa-Halbert, Bruce E. Gnade

Research output: Contribution to journalArticlepeer-review

124 Scopus citations

Abstract

(Figure Presented) The demonstrated square-planar Pt(II)-complex has reduced triplet-triplet quenching and therefore a near unity quantum yield in the neat thin film. A non-doped phosphorescent organic light-emitting diode (PhOLED) based on this emitter achieves (31.1 ± 0.1)% external quantum efficiency without any out-coupling, which shows that a non-doped PhOLED can be comparable in efficiency to the best doped devices with very complicated device structures.

Original languageEnglish (US)
Pages (from-to)8107-8113
Number of pages7
JournalAdvanced Materials
Volume26
Issue number48
DOIs
StatePublished - Sep 15 2014
Externally publishedYes

ASJC Scopus subject areas

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

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