Size-Controlled Synthesis of CdS Quantum Dots in PVP Matrix

Title: Size-Controlled Synthesis of CdS Quantum Dots in PVP Matrix

Volume: 4 Issue: 1

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

Affiliation:

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

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.

Cite this article as:

Baruah L. and S. Nath S., Size-Controlled Synthesis of CdS Quantum Dots in PVP Matrix, Micro and Nanosystems 2012; 4 (1) . https://dx.doi.org/10.2174/1876402911204010080