Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications

Sunday Samuel Oluyamo; Abass Akande Faremi

doi:doi:10.11648/j.nsnm.20200601.12

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Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications

Sunday Samuel Oluyamo, Abass Akande Faremi

Published in Nanoscience and Nanometrology (Volume 6, Issue 1)

Received: 30 July 2019 Accepted: 6 September 2019 Published: 16 January 2020

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Abstract

CdS thin films have continued to receive scientific and technological attention due to their potential applications in efficient solar energy conversion and utilization in device fabrication. In this research, CdS thin films were deposited on indium doped tin oxide (ITO) substrates of dimension 2.3 by 2.4 cm². Three different aqueous bath solutions of CdS were formed by increasing the concentration of cadmium acetate as a source of cadmium while the concentration of ammonium chloride and thiourea as a source of sulfur remained constant in the reaction bath as against the usual convention to ascertain the strength of the constituents in the reaction. The energy band gap of the films decreases with increase in the concentration of cadmium as a constituent of the bath while the films optical transmittance was found to increase with increase in concentration. This indicates that the energy band gap of the films can be predetermined by the choice of the constituent of the concentration in the chemical bath deposition technique (CBD). The increase in the transmittance for both as deposited and annealed CdS confirms the suitability of the films as window layer device, solar cell and optoelectronic applications.

Published in	Nanoscience and Nanometrology (Volume 6, Issue 1)
DOI	10.11648/j.nsnm.20200601.12
Page(s)	5-9
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Fabrication of CdS Thin Film, Chemical Bath, Thermal Treatment, Bang Gap Reengineering, Optical Properties

References

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APA Style

Sunday Samuel Oluyamo, Abass Akande Faremi. (2020). Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications. Nanoscience and Nanometrology, 6(1), 5-9. https://doi.org/10.11648/j.nsnm.20200601.12

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ACS Style

Sunday Samuel Oluyamo; Abass Akande Faremi. Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications. Nanosci. Nanometrol. 2020, 6(1), 5-9. doi: 10.11648/j.nsnm.20200601.12

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AMA Style

Sunday Samuel Oluyamo, Abass Akande Faremi. Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications. Nanosci Nanometrol. 2020;6(1):5-9. doi: 10.11648/j.nsnm.20200601.12

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@article{10.11648/j.nsnm.20200601.12,
  author = {Sunday Samuel Oluyamo and Abass Akande Faremi},
  title = {Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications},
  journal = {Nanoscience and Nanometrology},
  volume = {6},
  number = {1},
  pages = {5-9},
  doi = {10.11648/j.nsnm.20200601.12},
  url = {https://doi.org/10.11648/j.nsnm.20200601.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.nsnm.20200601.12},
  abstract = {CdS thin films have continued to receive scientific and technological attention due to their potential applications in efficient solar energy conversion and utilization in device fabrication. In this research, CdS thin films were deposited on indium doped tin oxide (ITO) substrates of dimension 2.3 by 2.4 cm2. Three different aqueous bath solutions of CdS were formed by increasing the concentration of cadmium acetate as a source of cadmium while the concentration of ammonium chloride and thiourea as a source of sulfur remained constant in the reaction bath as against the usual convention to ascertain the strength of the constituents in the reaction. The energy band gap of the films decreases with increase in the concentration of cadmium as a constituent of the bath while the films optical transmittance was found to increase with increase in concentration. This indicates that the energy band gap of the films can be predetermined by the choice of the constituent of the concentration in the chemical bath deposition technique (CBD). The increase in the transmittance for both as deposited and annealed CdS confirms the suitability of the films as window layer device, solar cell and optoelectronic applications.},
 year = {2020}
}

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TY  - JOUR
T1  - Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications
AU  - Sunday Samuel Oluyamo
AU  - Abass Akande Faremi
Y1  - 2020/01/16
PY  - 2020
N1  - https://doi.org/10.11648/j.nsnm.20200601.12
DO  - 10.11648/j.nsnm.20200601.12
T2  - Nanoscience and Nanometrology
JF  - Nanoscience and Nanometrology
JO  - Nanoscience and Nanometrology
SP  - 5
EP  - 9
PB  - Science Publishing Group
SN  - 2472-3630
UR  - https://doi.org/10.11648/j.nsnm.20200601.12
AB  - CdS thin films have continued to receive scientific and technological attention due to their potential applications in efficient solar energy conversion and utilization in device fabrication. In this research, CdS thin films were deposited on indium doped tin oxide (ITO) substrates of dimension 2.3 by 2.4 cm2. Three different aqueous bath solutions of CdS were formed by increasing the concentration of cadmium acetate as a source of cadmium while the concentration of ammonium chloride and thiourea as a source of sulfur remained constant in the reaction bath as against the usual convention to ascertain the strength of the constituents in the reaction. The energy band gap of the films decreases with increase in the concentration of cadmium as a constituent of the bath while the films optical transmittance was found to increase with increase in concentration. This indicates that the energy band gap of the films can be predetermined by the choice of the constituent of the concentration in the chemical bath deposition technique (CBD). The increase in the transmittance for both as deposited and annealed CdS confirms the suitability of the films as window layer device, solar cell and optoelectronic applications.
VL  - 6
IS  - 1
ER  -

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Author Information

Sunday Samuel Oluyamo

Department of Physics, School of Sciences, The Federal University of Technology, Akure, Nigeria
Abass Akande Faremi

Department of Physics, Federal University Oye-Ekiti, Oye-Ekiti, Nigeria

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APA Style

Sunday Samuel Oluyamo, Abass Akande Faremi. (2020). Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications. Nanoscience and Nanometrology, 6(1), 5-9. https://doi.org/10.11648/j.nsnm.20200601.12

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ACS Style

Sunday Samuel Oluyamo; Abass Akande Faremi. Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications. Nanosci. Nanometrol. 2020, 6(1), 5-9. doi: 10.11648/j.nsnm.20200601.12

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AMA Style

Sunday Samuel Oluyamo, Abass Akande Faremi. Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications. Nanosci Nanometrol. 2020;6(1):5-9. doi: 10.11648/j.nsnm.20200601.12

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@article{10.11648/j.nsnm.20200601.12,
  author = {Sunday Samuel Oluyamo and Abass Akande Faremi},
  title = {Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications},
  journal = {Nanoscience and Nanometrology},
  volume = {6},
  number = {1},
  pages = {5-9},
  doi = {10.11648/j.nsnm.20200601.12},
  url = {https://doi.org/10.11648/j.nsnm.20200601.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.nsnm.20200601.12},
  abstract = {CdS thin films have continued to receive scientific and technological attention due to their potential applications in efficient solar energy conversion and utilization in device fabrication. In this research, CdS thin films were deposited on indium doped tin oxide (ITO) substrates of dimension 2.3 by 2.4 cm2. Three different aqueous bath solutions of CdS were formed by increasing the concentration of cadmium acetate as a source of cadmium while the concentration of ammonium chloride and thiourea as a source of sulfur remained constant in the reaction bath as against the usual convention to ascertain the strength of the constituents in the reaction. The energy band gap of the films decreases with increase in the concentration of cadmium as a constituent of the bath while the films optical transmittance was found to increase with increase in concentration. This indicates that the energy band gap of the films can be predetermined by the choice of the constituent of the concentration in the chemical bath deposition technique (CBD). The increase in the transmittance for both as deposited and annealed CdS confirms the suitability of the films as window layer device, solar cell and optoelectronic applications.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Tunability and Graded Energy Band Gap of Chemical Bath Deposited Cadmium Sulfide (CdS) Thin Film for Optoelectronic Applications
AU  - Sunday Samuel Oluyamo
AU  - Abass Akande Faremi
Y1  - 2020/01/16
PY  - 2020
N1  - https://doi.org/10.11648/j.nsnm.20200601.12
DO  - 10.11648/j.nsnm.20200601.12
T2  - Nanoscience and Nanometrology
JF  - Nanoscience and Nanometrology
JO  - Nanoscience and Nanometrology
SP  - 5
EP  - 9
PB  - Science Publishing Group
SN  - 2472-3630
UR  - https://doi.org/10.11648/j.nsnm.20200601.12
AB  - CdS thin films have continued to receive scientific and technological attention due to their potential applications in efficient solar energy conversion and utilization in device fabrication. In this research, CdS thin films were deposited on indium doped tin oxide (ITO) substrates of dimension 2.3 by 2.4 cm2. Three different aqueous bath solutions of CdS were formed by increasing the concentration of cadmium acetate as a source of cadmium while the concentration of ammonium chloride and thiourea as a source of sulfur remained constant in the reaction bath as against the usual convention to ascertain the strength of the constituents in the reaction. The energy band gap of the films decreases with increase in the concentration of cadmium as a constituent of the bath while the films optical transmittance was found to increase with increase in concentration. This indicates that the energy band gap of the films can be predetermined by the choice of the constituent of the concentration in the chemical bath deposition technique (CBD). The increase in the transmittance for both as deposited and annealed CdS confirms the suitability of the films as window layer device, solar cell and optoelectronic applications.
VL  - 6
IS  - 1
ER  -

Copy | Download