alexa Experimental Study on Structural, Optical and Electrical Properties of Chemical Bath Deposited CdZnS Thin Films
ISSN: 2090-4541

Journal of Fundamentals of Renewable Energy and Applications
Open Access

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Research Article

Experimental Study on Structural, Optical and Electrical Properties of Chemical Bath Deposited CdZnS Thin Films

Sabbir Akhanda*, Rummana Matin, Muhammad Shahriar Bashar, Abu Kowsar, Mashudur Rahaman and Zahid Hasan Mahmood

Department of Electrical and Electronics Engineering, Dhaka University, Bangladesh

*Corresponding Author:
Sabbir Akhanda
Department of Electrical and Electronics Engineering
Dhaka University, Amar Ekushey Hall
Dhaka, Bangladesh
Tel: 8801687478820
E-mail: [email protected]

Received Date: December 19, 2016; Accepted Date: January 23, 2017; Published Date: January 25, 2017

Citation: Akhanda S, Matin R, Bashar MS, Kowsar A, Rahaman M, et al. (2017) Experimental Study on Structural, Optical and Electrical Properties of Chemical Bath Deposited CdZnS Thin Films. J Fundam Renewable Energy Appl 7: 222. doi:10.4172/2090-4541.1000222

Copyright: © 2017 Akhanda S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

CdZnS thin films have been prepared from an aqueous solution containing cadmium chloride, zinc acetate and thiourea by chemical bath deposition (CBD) method on a glass substrate at 82°C. Amount of cadmium chloride and zinc acetate were systematically varied as y=0.2, 0.4, 0.6, 0.8 (y=a/(a+b), a=volume of zinc acetate, b=volume of cadmium chloride) and subsequent effects on the film's property were studied by diffractometer, scanning electron microscope, spectrophotometer, four point probe and hall effect measurement. X-ray diffraction result shows that an increase in the Zn-content decreases the crystalline quality of the films. Transmittance and absorbance data was obtained by using UV-Vis spectrometer. Transmittance of 85-90% is found beyond the 700 nm wavelength. Optical bandgaps calculated from these data show a gradual increase in value with a gradual increase in Zn content. The electrical resistance of the so prepared films were measured by four point probe method. The result indicates that the resistance increases with increasing Zn content.

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