Achieving High-Performance Solution-Processed Deep-Red/Near-Infrared Organic Light-Emitting Diodes with a Phenanthroline-Based and Wedge-Shaped Fluorophore

Youming Zhang, Jiatao Wu, Jun Song, Zhao Chen, Junjie He, Xin Wang, Haiyang Liu, Shuming Chen, Junle Qu, Wai Yeung Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)


A phenanthroline-based donor–acceptor type fluorophore is designed and synthesized, and its thermal, photophysical, and electrochemical characteristics are investigated. This fluorophore displays a strong deep-red/near-infrared (DR/NIR) emission with the photoluminescence quantum yield of 74.8% in nonpolar n-hexane solvent and 4.5% in polar chloroform solvent, as well as 1.26% in neat film and 18.4% in 5 wt% doped poly(methyl methacrylate) film. DR/NIR devices are fabricated, with emission peaks at 670–696 nm and external quantum efficiencies of 3.18–1.43% at different doping concentrations.

Original languageEnglish
Article number1800677
JournalAdvanced Electronic Materials
Issue number3
Publication statusPublished - Mar 2019


  • donor-acceptor fluorophores
  • electroluminescence
  • near-infrared
  • photophysics
  • solution-process

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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