Polymer/Gold Nanoparticle Nanocomposite Light-Emitting Diodes: Enhancement of Electroluminescence Stability and Quantum Efficiency of Blue-Light-Emitting Polymers

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

Research output: Contribution to journalArticle

170 Citations (Scopus)

Abstract

The potential use of polymer light-emitting diodes is ultimately limited by their low quantum efficiency as well as by their poor stability due to oxygen. We report experiments on polymer light-emitting diodes made with poly(9,9′- dioctylfluorene)/gold nanocomposites to solve these drawbacks. Blue polymer light-emitting diodes with enhanced luminescent stability were obtained by incorporating 5-10-nm gold nanoparticles as the quenchers of the triplet states of blue emitting polymer. The nanocomposite light-emitting diodes exhibited an enhanced quantum efficiency due to the roughening of the surface onto which the Al cathode is deposited and to balanced charge injection.

Original languageEnglish
Pages (from-to)688-692
Number of pages5
JournalChemistry of Materials
Volume16
Issue number4
DOIs
Publication statusPublished - 2004 Feb 24

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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