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Fabrication of Polystyrene/CdS Hybrid Nanocomposites Embedded with CdS Nanowires by a Soft Solution-Processing Route

Published online by Cambridge University Press:  01 February 2011

Shu-Hong Yu
Affiliation:
Center for Materials Design, Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
Masahiro Yoshimura
Affiliation:
Center for Materials Design, Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
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Abstract

A novel one-step soft solution-processing (SSP) route called solvothermal-co-polymerization technique was successfully developed for in situ fabrication polystyrene (PS)/CdS nanocomposites embedded with CdS nanowires in ethylenediamine media at lower temperature (80–140°C). In this route, the polymerization of the styrene monomers and the formation of the CdS nanocrystallites occur simultaneously in a certain temperature range. The results show that the quantum-fined CdS nanowires with diameters 4–15 nm and lengths up to several micrometers via the present one-step route were embedded in the PS matrix and had [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.

Type
Research Article
Copyright
Copyright © Materials Research Society 2000

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