Optical properties of nanosize aggregation of phenylene vinylene oligomers

T. P. Nguyen*, Sheng-Hsiung Yang, J. Gomes, M. S. Wong

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

In this paper, we report the experimental results on the optical properties of oligo-phenylene vinylenes (OPVs) formed in nanosize pores of porous silicon substrates. Strong modifications of the photoluminescence properties of nanosize aggregation of OPVs were observed at room temperature, such as a blue shift of the PL spectra, whereas the structure of the oligomers is preserved as proved by Raman scattering experiments. However, the penetration of the oligomers into the nanopores was found to depend on the conformation of the chains, which is, in turn, conditioned by the solvents, used to dissolve the oligomer powder.

Original languageEnglish
Pages (from-to)269-274
Number of pages6
JournalSynthetic Metals
Volume151
Issue number3
DOIs
StatePublished - 15 Aug 2005

Keywords

  • Nanosize
  • PPV oligomers
  • Photoluminescence
  • Raman scattering

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