CATHODIC ELECTRODEPOSITION OF Cu 4 SnS 4 THIN FILMS FROM ACIDIC SOLUTION

Authors

Kassim Anuar
Min Ho Soon
Tee Tan Wee
Abdullah Abdul Halim
Sharif Atan
Haron Md. Jelas
Nagalingam Saravanan
Kuang

Abstract

In this work the synthesis of copper tin sulfide thin films by electrodeposition is carried out. The films were deposited onto ITO glass substrates from anaqueous solution bath containingcopper sulfate, tin chloride and sodium thiosulfate at pH 1 and room temperature. Prior to the deposition, a cyclic voltammetry experiment was carried out between two potential limits (+1000 to -1000 mV versus Ag/AgCl) to probe the effect of the applied potential and to determine the most likely suitable electrodeposition potential for the deposition of copper tin sulfide. The deposition was attempted at various cathodic potentials such as -400, -600, -800, -1000 mV to determine the optimum deposition potential. The films have been characterized by techniques such as optical absorption, X-ray diffraction and atomic force microscopy. The XRD patterns show that the films are polycrystalline with orthorhombic structure. The AFMstudies reveal the electrodeposited films were smooth, compact and uniform at deposition potentials of –600 mV versus Ag/AgCl. The direct optical band-gap energy was obtained to be 1.58 eV.

Publication Date

11-12-2017

Recommended Citation

Anuar, Kassim; Soon, Min Ho; Wee, Tee Tan; Halim, Abdullah Abdul; Atan, Sharif; Jelas, Haron Md.; Saravanan, Nagalingam; and Kuang (2017) "CATHODIC ELECTRODEPOSITION OF Cu 4 SnS 4 THIN FILMS FROM ACIDIC SOLUTION," ASEAN Journal on Science and Technology for Development: Vol. 26: No. 1, Article 6.
DOI: https://doi.org/10.29037/ajstd.176
Available at: https://ajstd.ubd.edu.bn/journal/vol26/iss1/6