Impediment of photo-oxidation in PPV nanocomposites doped by metal-coated silica nanoparticles

Yong Taik Lim, Tae Woo Lee, Ho Chul Lee, O. Ok Park

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

We prepared poly(p-phenylenevinylene) nanocomposites doped with gold-coated silica (SiO2-Au) nanoparticles and characterized photoluminescent properties of the nanocomposite films. The optical resonance of SiO2-Au nanoparticles is specifically designed to interact with the triplet excitons of poly(p-phenylenevinylene), which was reported elsewhere [J. Colloid Interf. Sci., submitted for publication]. The rate of photo-oxidation in poly(p-phenylenevinylene) was drastically reduced by doping with SiO2-Au nanoparticles, as expected. This effect has important implications on the enhancement of lifetimes in conjugated polymer-based optoelectronic devices.

Original languageEnglish
Pages (from-to)133-137
Number of pages5
JournalSynthetic Metals
Volume128
Issue number2
DOIs
StatePublished - 30 Apr 2002
Externally publishedYes

Keywords

  • Coated nanoparticles
  • Photo-oxidation
  • Plasmon resonance
  • Poly(p-phenylenevinylene)
  • Triplet excitons

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