Paper Title:

Energy Band Gap Studies of CdS Nanomaterials

Periodical Journal of Nano Research (Volume 3)
Main Theme Journal of Nano Research Vol. 3
Pages 97-102
DOI 10.4028/www.scientific.net/JNanoR.3.97
Citation Dinu Patidar et al., 2008, Journal of Nano Research, 3, 97
Online since October, 2008
Authors Dinu Patidar, K.S. Rathore, N.S. Saxena, Kananbala Sharma, T.P. Sharma
Keywords CDS, Energy Band Gap, Nanoparticle, X-Ray Diffraction (XRD)
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Abstract

The CdS nanoparticles of different sizes are synthesized by a simple chemical method. Here, CdS nanoparticles are grown through the reaction of solution of different concentration of CdCl2 with H2S. X-ray diffraction pattern confirms nano nature of CdS and has been used to determine the size of particle. Optical absorption spectroscopy is used to measure the energy band gap of these nanomaterials by using Tauc relation. Energy band gap ranging between 3.12 eV to 2.47 eV have been obtained for the samples containing the nanoparticles in the range of 2.3 to 6.0 nm size. A correlation between the band gap and size of the nanoparticles is also established.