Spectroscopy of nano-sized polysilanes confined by different structures of silica

N. Ostapenko, P. Vodolazkyy, D. Peckus, V. Gulbinas, V. Moiseenko, N. Surovtseva, S. Suto, A. Watanabe

Research output: Contribution to journalArticlepeer-review

Abstract

Four novel nanocomposite films based on poly(di-n-hexylsilane) (PDHS) incorporated into an inorganic matrix having different structure are fabricated. Polymer chains are localized into the nanopores of SiO2 and TiO 2 films, between globules of photonic crystals, as well as in the matrix of nano-sized SiO2 particles. Photoelectronic properties of the composites have been studied using fluorescence (FL) and FL decay measurements in a wide temperature range (5-330) K. The temperature dependence of FL intensities enabled us to establish the nature of a conformational structure of polymer chains, as well as to obtain information about the thermochromic transition of confined PDHS and the excitation energy transfer pathways.

Original languageEnglish
Pages (from-to)41/[273]-49/[281]
JournalMolecular crystals and liquid crystals
Volume536
DOIs
Publication statusPublished - 2011 Jan 1

Keywords

  • Inorganic matrices
  • lifetime
  • nanocomposite films
  • optical spectra
  • polysilanes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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