Optimization of polymeric host composition for polymer-based electrophosphorescent devices

Dong Hee Yu, O. Ok Park, Jong Hyeok Park

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We have demonstrated an optimized polymeric host material comprising a blend of poly(9-vinylcarbazole) (PVK) and a fluorescent polymer for a highly efficient electrophosphorescence system. Although the chemical compatibility between the blue-emitting-fluorescent polymer and iridium complex, tris[2-phenylpyridine]iridium(III) (Ir-(ppy)3), is very poor, efficient energy transfers from the blended host to the Ir complex was observed when a small amount of blue-emitting-fluorescent polymer was added to the PVK matrix. The device showed a maximum external quantum efficiency at 5 wt% blue-emitting-fluorescent polymer and 8 wt% Ir complex doping concentrations.

Original languageEnglish
Pages (from-to)496-500
Number of pages5
JournalJournal of Luminescence
Issue number5
Publication statusPublished - 2009 May

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2008-331-D00148).

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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