Fabrication and efficiency improvement of soluble blue phosphorescent organic light-emitting diodes using a multilayer structure based on an alcohol-soluble blue phosphorescent emitting layer

Kyoung Soo Yook, Sang Eok Jang, Soon Ok Jeon, Jun Yeob Lee

Research output: Contribution to journalArticlepeer-review

131 Scopus citations

Abstract

Highly efficient soluble blue phosphorescent organic light emitting diodes have been developed using a multilayer device structure based on alcohol soluble blue phosphorescent emitting layer. A device structure with double emitting layer and an exciton blocking layer could be fabricated due to orthogonal film formation and a high quantum efficiency of 14.1% and a current efficiency of 30.4 cd/A were achieved in the soluble blue phosphorescent organic light emitting diodes.

Original languageEnglish
Pages (from-to)4479-4483
Number of pages5
JournalAdvanced Materials
Volume22
Issue number40
DOIs
StatePublished - 25 Oct 2010
Externally publishedYes

Keywords

  • Alcohol soluble phosphorescent emitting layer
  • High efficiency
  • Phosphine oxide
  • Soluble blue phosphorescent organic light-emitting diodes

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