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Optical studies on chemical bath deposited nanocrystalline CdS thin films
Basudev Pradhan1, Ashwani K Sharma, Asim K Ray
1Nanotechnology Research Laboratories, The Department of Materials, Queen Mary College, University of London, Mile End Road, London, E1 4NS, UK.
Journal of Nanoscience and Nanotechnology
|August 20, 2005
Abstract:
Nanocrystalline cadmium sulphide thin films were prepared by the chemical bath (CB) deposition using a mixed aqueous solution of cadmium chloride, thiourea, and ammonium chloride. The XRD patterns showed that the CdS films were of hexagonal phase with preferred (002) orientation. From ellipsometric measurements, the film thickness was found to be in order of 66 nm and the optical band gap was estimated to be 2.4 eV.
