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Issue 12, 2005
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Synthesis and characterization of CdS quantum dots in polystyrene microbeads

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Abstract

Polystyrene microbeads doped with highly luminescent CdS quantum dots (QDs) have been prepared. Polystyrene particles with diameters ranging from 100 nm to 500 µm were prepared by a suspension polymerization method and with different loadings of QDs. The resulting organic–inorganic microspheres have been characterized by FTIR, elemental analysis and SEM. Confocal microscopy and photoluminescence studies proved that the CdS nanoparticles were evenly distributed throughout the polystyrene spheres. The QD-containing composites have similar optical properties to isolated CdS QDs. The thermal decomposition of the hybrid materials occurred at higher temperature than for the parent organic materials.

Graphical abstract: Synthesis and characterization of CdS quantum dots in polystyrene microbeads

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Article information


Submitted
11 Aug 2004
Accepted
23 Dec 2004
First published
02 Feb 2005

J. Mater. Chem., 2005,15, 1238-1243
Article type
Paper

Synthesis and characterization of CdS quantum dots in polystyrene microbeads

Y. Li, E. C. Y. Liu, N. Pickett, P. J. Skabara, S. S. Cummins, S. Ryley, A. J. Sutherland and P. O'Brien, J. Mater. Chem., 2005, 15, 1238
DOI: 10.1039/B412317D

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