Coexistence of different conformer forms in nanosize poly(di-n-hexylsilane)

A. Dementjev, V. Gulbinas, L. Valkunas, N. Ostapenko, S. Suto, A. Watanabe

研究成果: Article査読

20 被引用数 (Scopus)

抄録

Photoluminescence and photoluminescence excitation spectra of poly(di-n-hexylsilane) (PDHS) embedded in nanoporous silica material SB A-15 with a pore diameter of 10 nm were analyzed at different temperatures ranging from S to 320 K. The optical spectra of this composite are structured containing three bands, attributed to different structural forms of the polymer coexisting in a restricted pore volume: the polymer chains in the trans and gauche conformations, and their aggregates. Different structural forms are spatially separated and weakly coupled; therefore, several bands are distinguished in the photoluminescence spectra at low temperatures when several forms coexist. For the first time two termochromic transitions of nanosize PDHS were observed at about 265 and 320 K for a single polymer chain and for aggregates, respectively.

本文言語English
ページ(範囲)4717-4721
ページ数5
ジャーナルJournal of Physical Chemistry C
111
12
DOI
出版ステータスPublished - 2007 3月 29

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • エネルギー(全般)
  • 物理化学および理論化学
  • 表面、皮膜および薄膜

フィンガープリント

「Coexistence of different conformer forms in nanosize poly(di-n-hexylsilane)」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル