10.1007/s40094-020-00377-2

A systematic study on chemically deposited cadmium sulfide (CdS) thin film

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  • Saiful Islam*1,
  • Tasnia Hossain2,
  • Hasan Sarwar3,
  • Mohammad Junaebur Rashid1,
  1. Department of Electrical and Electronic Engineering, University of Dhaka, Dhaka 1000, Bangladesh
  2. Department of Electrical and Electronic Engineering, University of Asia Pacific, Dhaka 1215, Bangladesh
  3. Department of Computer Science and Engineering, United International University, Dhaka 1209, Bangladesh

Published in Issue 2023-11-17

How to Cite

1.
Islam S, Hossain T, Sarwar H, Rashid MJ. A systematic study on chemically deposited cadmium sulfide (CdS) thin film. J Theor Appl phys. 2023 Nov. 17;14(3). Available from: https://oiccpress.com/jtap/article/view/1887
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Abstract

AbstractIn this work, the conventional chemical bath deposition (CBD) technique and its growth parameters were systematically studied to deposit CdS thin films on the glass substrate. The samples were prepared using a simple aqueous solution containing cadmium sulfate (CdSO4·8H2O), thiourea [SC(NH2)2], ammonium sulfate [(NH4)2SO4] as a source of cadmium, sulfur, and a complexing agent, respectively. The deposited films were characterized to study the surface morphology, crystallographic structure, chemical composition, optical and electrical properties. Through this study, the structure was determined to cubic with (111) preferential orientation and the crystallinity of the films was improved with the increase of film thickness. The transmission spectra were recorded in the range of wavelength 300â600 nm. The optical bandgap of the optimized CdS films was varied from 2.43 to 2.74 eV. All the films exhibit n-type of conductivity which was found in the order of 10â4 to 10â5 (1/Ω-cm), suggesting that it would be suitable for the buffer layer in thin-film solar cells.

Keywords

  • CBD,
  • CDS,
  • Conductivity,
  • Optical bandgap,
  • Thin Film
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