Synthesis and characterization of cadmium sulfide (CdS) thin films by cyclic voltammetry technique

Nanostructure (II-VI) semiconductor Cadmium Sulfide (CdS) have interesting due to their in scientific circle and varieties of encouraging potentials in extensive applications such as transparent windows, photoluminescence devices, sensors, solar cells, etc. In this work, nanocrystalline CdS thin fil...

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Bibliographic Details
Main Authors: Khan, Mohibul, Alam, Md. Shahbaz, Saha, Biswajit, Ahmed, Sk. Faruque
Format: Conference Proceeding
Language:English
Subjects:
AFM
Cyclic voltammetry
FT-IR
Nanocrystalline CdS TFs
Optical properties
XRD
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Summary:Nanostructure (II-VI) semiconductor Cadmium Sulfide (CdS) have interesting due to their in scientific circle and varieties of encouraging potentials in extensive applications such as transparent windows, photoluminescence devices, sensors, solar cells, etc. In this work, nanocrystalline CdS thin films (TFs) synthesized on the Indium tin oxide (ITO) coated glass substrate via cyclic voltammetry (CV) with a three-electrode deposition technique. X-Ray Diffractometer (XRD) used for the structural study of TFs and the topographical image characterized by using an Atomic Force Microscope (AFM). XRD patterns of the TFs were shown that nanocrystaline in nature with a cubic structure at (200) as the preferential orientation. Chemical compositions of the deposited TFs analysed by using Fourier Transform Infrared Spectroscopy (FT-IR). The optical properties of CdS TFs characterized by using a UV–Vis spectrophotometer showed that the optical band gap energy (Eg) decreases from 2.92 eV to 2.28 eV with increasing of deposition time from 15 min to 60 min respectively. Urbach energy increases from 117 meV to 151 meV with increasing of deposition time from 15 min to 60 min respectively.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2021.04.316