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A comprehensive photovoltaic study on tungsten disulfide (WS2) buffer layer based CdTe solar cell

Transition metal di-chalcogenides (TMCDs)-Tungsten disulfide (WS2) exhibit excellent optoelectronic properties such as suitable bandgap, high absorption coefficient, good conductivity, high carrier mobility, etc. to be used as a photovoltaic material for thin-film solar cells. In the present work, w...

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Main Authors: Emon E.I., Islam A.M., Sobayel M.K., Islam S., Akhtaruzzaman M., Amin N., Ahmed A., Rashid M.J.
Other Authors: 57221378098
Format: Article
Published: Elsevier Ltd 2024
Subjects:
Buffer layer
CdTe Solar cell
Numerical study
Transition metal di-chalcogenides (TMCDs)
Tungsten disulfide (WS<sub>2</sub>)
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spelling my.uniten.dspace-342462024-10-14T11:18:37Z A comprehensive photovoltaic study on tungsten disulfide (WS2) buffer layer based CdTe solar cell Emon E.I. Islam A.M. Sobayel M.K. Islam S. Akhtaruzzaman M. Amin N. Ahmed A. Rashid M.J. 57221378098 57221381145 57194049079 57192298975 57195441001 7102424614 23072379600 56754641100 Buffer layer CdTe Solar cell Numerical study Transition metal di-chalcogenides (TMCDs) Tungsten disulfide (WS<sub>2</sub>) Transition metal di-chalcogenides (TMCDs)-Tungsten disulfide (WS2) exhibit excellent optoelectronic properties such as suitable bandgap, high absorption coefficient, good conductivity, high carrier mobility, etc. to be used as a photovoltaic material for thin-film solar cells. In the present work, we have replaced the traditional buffer CdS and ITO/ZnO window layer in CdTe solar cells with the non-toxic, earth-abundant WS2 buffer and SnO2 window layer, respectively. The SCAPS-1D solar simulator is used to investigate the potentiality of WS2 as buffer material in CdTe solar cells. This numerical study provides a comparison of the performances between the proposed structure: SnO2/WS2/CdTe/Au and the baseline structure: ITO/ZnO/CdS/CdTe/Au. The impacts of the charge carrier generation rate, spectral response, current-voltage characteristics, bulk defect density, defect density at buffer/absorber interface, operating temperature, and capacitance-voltage characteristics on the solar cell performance parameters have also been analyzed. The tolerance level of defect density in WS2 bulk and WS2/CdTe interface are found to be 1017 cm?3 and 1012 cm?3, respectively. The temperature study reveals the poor structural robustness and thermal stability of the proposed cell. The conversion efficiency of the proposed cell has found to be 20.55% at the optimized device structure. Nevertheles, these findings may provide an insight to fabricate viable, environment friendly, and inexpensive CdTe thin-film solar cells. � 2023 Final 2024-10-14T03:18:37Z 2024-10-14T03:18:37Z 2023 Article 10.1016/j.heliyon.2023.e14438 2-s2.0-85150162922 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85150162922&doi=10.1016%2fj.heliyon.2023.e14438&partnerID=40&md5=3f81c14e0662ed812c125df1b9e82e27 https://irepository.uniten.edu.my/handle/123456789/34246 9 3 e14438 All Open Access Gold Open Access Elsevier Ltd Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
topic Buffer layer
CdTe Solar cell
Numerical study
Transition metal di-chalcogenides (TMCDs)
Tungsten disulfide (WS<sub>2</sub>)
spellingShingle Buffer layer
CdTe Solar cell
Numerical study
Transition metal di-chalcogenides (TMCDs)
Tungsten disulfide (WS<sub>2</sub>)
Emon E.I.
Islam A.M.
Sobayel M.K.
Islam S.
Akhtaruzzaman M.
Amin N.
Ahmed A.
Rashid M.J.
A comprehensive photovoltaic study on tungsten disulfide (WS2) buffer layer based CdTe solar cell
description Transition metal di-chalcogenides (TMCDs)-Tungsten disulfide (WS2) exhibit excellent optoelectronic properties such as suitable bandgap, high absorption coefficient, good conductivity, high carrier mobility, etc. to be used as a photovoltaic material for thin-film solar cells. In the present work, we have replaced the traditional buffer CdS and ITO/ZnO window layer in CdTe solar cells with the non-toxic, earth-abundant WS2 buffer and SnO2 window layer, respectively. The SCAPS-1D solar simulator is used to investigate the potentiality of WS2 as buffer material in CdTe solar cells. This numerical study provides a comparison of the performances between the proposed structure: SnO2/WS2/CdTe/Au and the baseline structure: ITO/ZnO/CdS/CdTe/Au. The impacts of the charge carrier generation rate, spectral response, current-voltage characteristics, bulk defect density, defect density at buffer/absorber interface, operating temperature, and capacitance-voltage characteristics on the solar cell performance parameters have also been analyzed. The tolerance level of defect density in WS2 bulk and WS2/CdTe interface are found to be 1017 cm?3 and 1012 cm?3, respectively. The temperature study reveals the poor structural robustness and thermal stability of the proposed cell. The conversion efficiency of the proposed cell has found to be 20.55% at the optimized device structure. Nevertheles, these findings may provide an insight to fabricate viable, environment friendly, and inexpensive CdTe thin-film solar cells. � 2023
author2 57221378098
author_facet 57221378098
Emon E.I.
Islam A.M.
Sobayel M.K.
Islam S.
Akhtaruzzaman M.
Amin N.
Ahmed A.
Rashid M.J.
format Article
author Emon E.I.
Islam A.M.
Sobayel M.K.
Islam S.
Akhtaruzzaman M.
Amin N.
Ahmed A.
Rashid M.J.
author_sort Emon E.I.
title A comprehensive photovoltaic study on tungsten disulfide (WS2) buffer layer based CdTe solar cell
title_short A comprehensive photovoltaic study on tungsten disulfide (WS2) buffer layer based CdTe solar cell
title_full A comprehensive photovoltaic study on tungsten disulfide (WS2) buffer layer based CdTe solar cell
title_fullStr A comprehensive photovoltaic study on tungsten disulfide (WS2) buffer layer based CdTe solar cell
title_full_unstemmed A comprehensive photovoltaic study on tungsten disulfide (WS2) buffer layer based CdTe solar cell
title_sort comprehensive photovoltaic study on tungsten disulfide (ws2) buffer layer based cdte solar cell
publisher Elsevier Ltd
publishDate 2024
_version_ 1814061047471931392
score 13.211869

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