High efficiency white organic light emitting diodes employing blue and red platinum emitters

Barry O'Brien, Gregory Norby, Guijie Li, Jian Li

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Platinum-based blue and red emitters were used to make stacked organic light-emitting diodes devices for potential use in solid-state lighting. The electroluminescence (EL) spectra were strongly dependent on the red layer thickness and relative position of the red and blue emissive layers. Although all devices had very little EL in the green region, a color rendering index (CRI) as high as 65 was achieved. Addition of a suitable phosphorescent green emissive layer should produce higher CRI values. All devices tested exhibited external quantum efficiencies greater than 20%, indicating that the Pt-based emitters reported here are potentially useful for solid-state lighting applications.

Original languageEnglish (US)
Article number043597
JournalJournal of Photonics for Energy
Volume4
Issue number1
DOIs
StatePublished - Jan 2014

Keywords

  • Pt-based emitters
  • electrophosphorescence
  • organic light emitting diode
  • photonics
  • solid-state lighting

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Renewable Energy, Sustainability and the Environment

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