Enhanced quantum efficiency in polymer light-emitting diode with polystryrene nanolayer

Jong Hyeok Park, O. Ok Park, Jae Woong Yu, Jai Kyeong Kim, Young Chul Kim

Research output: Contribution to journalArticle

Abstract

We report the effect of polystyrene nanolayer on electron injection on the polymer light-emitting diodes (PLEDs) in which hole is major charge carrier. Especially, when a ∼10nm-thick polystyrene layer was employed, the device gave two orders a magnitude higher external quantum efficiency than that of the one without an insulting nanolayer. This enhancement may result from the dramatic lowering of the effective barrier height for electron injection to the emmiting layer.

Original languageEnglish
Pages (from-to)141-145
Number of pages5
JournalMolecular Crystals and Liquid Crystals
Volume424
DOIs
Publication statusPublished - 2004 Dec 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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