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Journal of Applied Sciences
Year: 2012  |  Volume: 12  |  Issue: 16  |  Page No.: 1701 - 1705

Effect of Substrate Temperature on the Growth of Polycrystalline ZnS Thin Films Prepared by Spray Pyrolysis Technique

D. Balamurugan, B.G. Jeyaprakash and R. Chandiramouli    

Abstract: ZnS thin films on glass substrate have been prepared by home built spray pyrolysis technique at 220, 250 and 280°C. Aqueous solution of 50 mL containing zinc acetate dihydrate and thiourea salts of 1:1 M is sprayed as fine mist at a pressure of 2 kg cm-2 with flow rate of 3 mL min-1 on preheated glass substrate. Film obtained at 220°C found to be amorphous and polycrystalline at 250 and 280°C with preferential orientation along (111) plane. X-ray line broadening technique is utilized to determine the grain size and microstrain of the ZnS film. Compositional studies indicate the presence of oxygen for the film prepared at 250°C. The effect of substrate temperature on crystalline structure, surface morphology and composition were analyzed and reported.

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