Enhanced color purity and stability from polymer/nanoporous silica nanocomposite blue light-emitting diodes

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Photo-oxidation plays an important role in the lifetime of PLEDs fabricated from PFs. In addition, most of these PLEDs suffer from a degradation of the device under operation; the degradation is documented in the formation of a low-energy emission band at 2.2-2.3 eV, which turns the desired blue emission color into an undesired blue-green emission. With the aim of simultaneously overcoming all these drawbacks, a blue light-emitting polymer/mesoporous silica nanocomposite was prepared by blending poly(9,9-dioctylfluorene) with surface modified nanoporous silica. This nanocomposite film shows dramatically increased photo-stability and color purity.

Original languageEnglish
Pages (from-to)145-148
Number of pages4
JournalSynthetic Metals
Volume154
Issue number1-3
DOIs
Publication statusPublished - 2005 Sep 22

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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