The effect of potential on electrodeposited CdSe thin films

Mariappan, R and Ponnuswamy, V and Mohan, SM and Suresh, P and Suresh, R (2012) The effect of potential on electrodeposited CdSe thin films. In: MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 15 (2). pp. 174-180.

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Abstract

Cadmium selenide (CdSe) thin films have been successfully prepared by the electrodeposition technique on indium doped tin oxide (ITO) substrates with aqueous solutions of cadmium sulphate and selenium dioxide. The deposited films were characterized with X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive analysis by X-rays (EDAX), photoluminescence (PL), UV spectrometry and electrical resistivity measurements. XRD analysis shows that the films are polycrystalline in nature with hexagonal crystalline structure. The various parameters such as crystallite size, micro strain, dislocation density and texture coefficients were evaluated. SEM study shows that the total substrate surface is well covered with uniformly distributed spherical shaped grains. Photoluminescence spectra of films were recorded to understand the emission properties of the films. The presence of direct transition with band gap energy 1.75 eV is established from optical studies. The electrical resistivity of the thin films is found to be 10(6) Omega cm and the results are discussed. (c) 2011 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
Publisher:	ELSEVIER SCI LTD
Additional Information:	Copy right for this article belongs to Elsevier Ltd.
Keywords:	XRD;SEM;Optical;Electrical properties
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	25 Jul 2012 10:16
Last Modified:	25 Jul 2012 10:16
URI:	http://eprints.iisc.ac.in/id/eprint/44869

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