White emission from polymer/quantum dot ternary nanocomposites by incomplete energy transfer

Jong Hyeok Park, Jung Yong Kim, Byung Doo Chin, Young Chul Kim, Jai Kyeong Kim, O. Ok Park

Research output: Contribution to journalArticle

103 Citations (Scopus)

Abstract

White light emission was obtained from a light-emitting diode prepared from polymer/quantum dot nanocomposites consisting of poly(9,9′- dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (PDHFPPV) and two kinds of CdSe nanoparticles with different particle size. Blue emission from the polymer, green emission from the ∼3 nm CdSe and red emission from the ∼7 nm CdSe, which is triggered by partial excitation energy transfer from the polymer, jointly contribute to white emission of the organic-inorganic hybrid device. Also, the blue-emitting matrix polymer makes the device preparation process simpler due to its high processability. By controlling the blend ratio, we could obtain a pure white colour from the hybrid device.

Original languageEnglish
Pages (from-to)1217-1220
Number of pages4
JournalNanotechnology
Volume15
Issue number9
DOIs
Publication statusPublished - 2004 Sep

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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