Efficient and stable red organic light emitting devices from a tetradentate cyclometalated platinum complex

Guijie Li, Jeremy Ecton, Barry Obrien, Jian Li

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An efficient and stable red phosphorescent organic light emitting diode was developed using a tetradentate cyclometalated platinum complex. Devices employing the phosphorescent molecule, platinum(II)-9-(4-methylpyridin-2-yl)-2- (3-(quinolin-2-yl)phenoxy)-9H-carbazole (PtON11Me), yielded high external quantum efficiencies and high operational lifetimes. A maximum EQE of 12.5% and color coordinates CIE (x = 0.61, y = 0.36) was achieved in devices employing efficient hole blocking and transporting materials and a high operational lifetime of T0.97 ∼ 3200 h was achieved in devices utilizing electrochemically stable hole blocking and transporting materials.

Original languageEnglish (US)
Pages (from-to)1862-1867
Number of pages6
JournalOrganic Electronics
Issue number8
StatePublished - Aug 2014



  • Operational lifetime
  • Phosphorescence
  • Platinum complex
  • Red OLED

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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