Visible luminescence of nanosized polysilane photoconductors, incorporated into mesoporous silica

N. Ostapenko, N. Kotova, V. Lukashenko, G. Telbiz, S. Suto, A. Watanabe

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The dependence of the low-temperature (5-150 K) photoluminescence spectra of poly(di-n-hexylsilane) (PDHS) incorporated into mesoporous silicas on sizes and a geometry of pores was investigated. It was shown that visible luminescence in nanosized PDHS is observed only when the polymer is incorporated into the hexagonal pores of 2.8 nm in diameter, but it is absent for the bulk film, dissolved polymer, and polymer incorporated into cubic pores of 2.8 nm in diameter or into hexagonal pores of 5.8 nm in diameter. We suggest that the appearance of visible luminescence in nanosized PDHS is connected with the transition from electronic states localized on the conformational defect of the polymer chain.

本文言語English
ページ(範囲)149-156
ページ数8
ジャーナルMolecular crystals and liquid crystals
426
DOI
出版ステータスPublished - 2005

ASJC Scopus subject areas

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

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