Water-soluble PPV and C60 nanocomposite with enhanced miscibility and enhanced photo-induced charge transfer through ground state electrostatic interactions

Young Il Park, Young Shin Park, Jian Gao, John K. Grey, Chun Chih Wang, Malkiat A. Johal, Jongwook Park, Han Young Woo, Hsing Lin Wang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We report the preparation of highly charged nanocomposites comprised of water-soluble, anionic fullerene and cationic poly-phenylenevinylene (PPV) derivatives. The nanocomposites display high fluorescence quenching efficiency (99%) presumably due to enhanced miscibility between cationic PPV and anionic C60 via electrostatic interactions. We show that complexation between the cationic PPV and anionic C60 derivatives leads to formation of nanocomposites with optical and electronic properties distinct from individual components without preferential electrostatic interactions. Photo-induced charge transfer quenches fluorescence from the PPV component is consistent with the frontier energy offsets of PPV and C60, and cyclic voltammetry and UV-Vis spectroscopy measurements. This result confirms high miscibility between donor and acceptor and resonance Raman spectra indicate a conformational changes of the PPV backbone upon complex formation.

Original languageEnglish
Pages (from-to)855-859
Number of pages5
JournalPolymer
Volume55
Issue number3
DOIs
Publication statusPublished - 2014 Feb 12
Externally publishedYes

Keywords

  • Efficient charge transfer
  • Nanocomposite
  • Poly(phenylene vinylene)

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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