Size-Controlled Synthesis of CdS Quantum Dots in PVP Matrix

Author(s): L. Baruah, S. S. Nath

Journal Name: Micro and Nanosystems

Volume 4 , Issue 1 , 2012


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Abstract:

Size-controlled CdS quantum dots are successfully synthesized in PVP matrix through chemical route. The obtained particles are characterized with XRD, UV/VIS and HRTEM. Nearly spherical and well dispersed particles of size 3-20 nm are obtained. The size of the prepared quantum dots can be readily tuned depending on temperature, stirring rate and concentration in the reaction system. This particle size produces a quantum confinement observed from blue shifted absorption edge at 211nm in UV/VIS absorption spectroscopy.

Keywords: Chemical route, concentration, quantum dots, size-controlled, synthesis, temperature, CdS, QDs, PVP Matrix

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Article Details

VOLUME: 4
ISSUE: 1
Year: 2012
Page: [80 - 84]
Pages: 5
DOI: 10.2174/1876402911204010080

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