In situ fabrication and optical properties of a novel polystyrene/semiconductor nanocomposite embedded with CdS nanowires by a soft solution processing route

Shu Hong Yu, Masahiro Yoshimura, Jose Maria Calderon Moreno, Takeshi Fujiwara, Takahiro Fujino, Ryo Teranishi

研究成果: Contribution to journalArticle査読

70 被引用数 (Scopus)

抄録

A novel one-step soft solution-processing route called the solvothermal-copolymerization technique was successfully developed for in situ fabrication of polystyrene (PS)/CdS nanocomposites embedded with CdS nanowires in ethylenediamine media at lower temperatures (80-140 °C). In this route, the polymerization of the monomers and the formation of the CdS nanocrystallites occur simultaneously in a certain temperature range. The results of X-ray powder diffraction, transmission electron microscopy, and high-resolution transmission electron microscopy confirmed that the embedded CdS nanowires, with diameters of 4-15 nm and lengths up to several micrometers, have [001] preferential orientation. Both temperature and solvent were found to play a key role in the synthesis of the nanocomposites. The produced novel hybrid nanocomposites display obvious quantum size effects and interesting fluorescence features. The spectroscopic properties of the PS/CdS nanowire nanocomposites were found to be sensitive to synthetic conditions, including the concentrations of Cd2+ or the monomer, temperature, and reaction time.

本文言語英語
ページ(範囲)1700-1707
ページ数8
ジャーナルLangmuir
17
5
DOI
出版ステータス出版済み - 3 6 2001
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 表面および界面
  • 分光学
  • 電気化学

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