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BY-NC-ND 3.0 license Open Access Published by De Gruyter December 4, 2012

Room temperature synthesis of lead sulfide nanoparticles

  • Gholamreza Nabiyouni EMAIL logo , Emad Moghimi , Kambiz Hedayati and Rouhollah Jalajerdi

Abstract

Lead sulfide (PbS) nanoparticles were synthesized at room temperature via a simple chemical reaction. In this work, thiophenol was used as the capping agent and sodium sulfide was used as a sulfur source. The products were characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, ultraviolet-visible, photoluminescence and Fourier transform infrared spectroscopy. Electron microscopy studies reveal that synthesis of PbS nanoparticles using no capping agent produces PbS nanoparticles with relatively large size, whereas adding thiophenol leads to the production of nano-sized PbS particles. We found that electronic absorption spectra as well as particle sizes depend on the used capping agents. Compared with bulk PbS, the absorption spectra of the obtained PbS nanoparticles exhibit a blue shift, which can be attributed to the quantum confinement of charge carriers in the nanoparticles.


Corresponding author: Gholamreza Nabiyouni, Faculty of Science, Department of Physics, Arak University, Arak 38156-8-8349, Iran

Published Online: 2012-12-04
Published in Print: 2012-12-01

©2012 by Walter de Gruyter Berlin Boston

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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