Table of Contents
Journal of Nanoscience
Volume 2013, Article ID 897638, 6 pages
http://dx.doi.org/10.1155/2013/897638
Research Article

High-Quality ZnCdS Nanosheets Prepared Using Solvothermal Synthesis

1Basrah Nanomaterials Research Group (BNRG), Department of Physics, College of Science, University of Basrah, Basrah 61004, Iraq
2Nano-Optoelectronics Research and Technology Laboratory (NOR), School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia

Received 30 March 2013; Accepted 7 June 2013

Academic Editor: Mingwang Shao

Copyright © 2013 M. A. Mahdi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

For the first time, nanosheets with different Zn and Cd ion concentrations were prepared using solvothermal synthesis at 200°C for 4 and 24 h. The crystalline structure of the nanosheets was wurtzite. The optical band gaps of the nanosheets increased with increasing Zn ratio; this increase is consistent with the band gaps estimated using Vegard’s formula. The photoluminescence spectra for the 24 h nanosheets had higher emission intensities than those for the 4 h nanosheets. The emission band corresponding to intrinsic near-band-edge emission and a broad peak associated with extrinsic deep-level emission were observed in the photoluminescence spectra.