Optimization of polymeric host composition for polymer-based electrophosphorescent devices

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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
Volume129
Issue number5
DOIs
Publication statusPublished - 2009 May 1

Fingerprint

Polymers
Equipment and Supplies
optimization
polymers
iridium
Chemical analysis
chemical compatibility
Iridium
Energy Transfer
Quantum efficiency
Energy transfer
quantum efficiency
energy transfer
Doping (additives)
matrices

All Science Journal Classification (ASJC) codes

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

Cite this

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Optimization of polymeric host composition for polymer-based electrophosphorescent devices. / Yu, Dong Hee; Park, O. Ok; Park, Jong Hyeok.

In: Journal of Luminescence, Vol. 129, No. 5, 01.05.2009, p. 496-500.

Research output: Contribution to journalArticle

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AU - Park, O. Ok

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AB - 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.

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