Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution

The main limiting factor of kesterite-related solar cells is the low open-circuit voltage (VOC) relative to their bandgap. This drawback has been correlated with the easily formed anti-site defects caused by similar ionic radii and/or chemical valence. Recent success in suppressing Sn-related defect...

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Autores: Ibrahim, Ahmad, Lie, Stener, Tan, Joel Ming Riu, Swope, Ryan, Gon Medaille, Axel|||0000-0002-8628-0781, Hadke, Shreyash, Saucedo Silva, Edgardo Ademar|||0000-0003-2123-6162, Agrawal, Rakesh, Wong, Lydia H.
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/400976
Acesso em linha:https://hdl.handle.net/2117/400976
https://dx.doi.org/10.1039/d3ta04529c
Access Level:acceso abierto
Palavra-chave:Solar cells
Cèl·lules solars
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
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network_name_str España
repository_id_str
spelling Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitutionIbrahim, AhmadLie, StenerTan, Joel Ming RiuSwope, RyanGon Medaille, Axel|||0000-0002-8628-0781Hadke, ShreyashSaucedo Silva, Edgardo Ademar|||0000-0003-2123-6162Agrawal, RakeshWong, Lydia H.Solar cellsCèl·lules solarsÀrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solarsThe main limiting factor of kesterite-related solar cells is the low open-circuit voltage (VOC) relative to their bandgap. This drawback has been correlated with the easily formed anti-site defects caused by similar ionic radii and/or chemical valence. Recent success in suppressing Sn-related defects by using Cd to replace Zn in Cu2CdSnS4 was attributed to the higher formation energy of the 2CuCd + SnCd defect complex compared to its counterpart in Cu2ZnSnS4. This has motivated the use of bigger ions to replace Cu in Cu2CdSnS4 to reduce the possibilities of III and III defect formation. In this work, we substitute Cu in Cu2CdSnS4 with larger Ag at various concentrations and investigate the structural, optoelectronic, and photovoltaic properties of (Cu,Ag)2CdSnS4. Higher concentrations of Ag lead to peak splitting in XRD spectra, which is attributed to mixed phases and marks the transition towards Ag2CdSnS4. This is also complemented by Raman scattering analysis, the first time the Raman spectrum of Ag2CdSnS4 is reported. Doping type inversion was observed for pure n-type Ag2CdSnS4 instead of the p-type of Cu2CdSnS4, accompanied by high carrier mobility and sharp absorption onset. Further optoelectronic and photovoltaic characterization reveals that adding 5% Ag concentration improves Cu2CdSnS4 device performance to 7.72%, mainly due to superior film quality and improved interface properties. As a result, better carrier collection contributes to the short-circuit current improvement of the champion device.Peer ReviewedRoyal Society of Chemistry (RSC)20232023-12-2220242024-02-05journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/400976https://dx.doi.org/10.1039/d3ta04529creponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4009762026-05-27T15:37:01Z
dc.title.none.fl_str_mv Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution
title Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution
spellingShingle Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution
Ibrahim, Ahmad
Solar cells
Cèl·lules solars
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
title_short Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution
title_full Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution
title_fullStr Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution
title_full_unstemmed Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution
title_sort Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution
dc.creator.none.fl_str_mv Ibrahim, Ahmad
Lie, Stener
Tan, Joel Ming Riu
Swope, Ryan
Gon Medaille, Axel|||0000-0002-8628-0781
Hadke, Shreyash
Saucedo Silva, Edgardo Ademar|||0000-0003-2123-6162
Agrawal, Rakesh
Wong, Lydia H.
author Ibrahim, Ahmad
author_facet Ibrahim, Ahmad
Lie, Stener
Tan, Joel Ming Riu
Swope, Ryan
Gon Medaille, Axel|||0000-0002-8628-0781
Hadke, Shreyash
Saucedo Silva, Edgardo Ademar|||0000-0003-2123-6162
Agrawal, Rakesh
Wong, Lydia H.
author_role author
author2 Lie, Stener
Tan, Joel Ming Riu
Swope, Ryan
Gon Medaille, Axel|||0000-0002-8628-0781
Hadke, Shreyash
Saucedo Silva, Edgardo Ademar|||0000-0003-2123-6162
Agrawal, Rakesh
Wong, Lydia H.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Solar cells
Cèl·lules solars
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
topic Solar cells
Cèl·lules solars
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
description The main limiting factor of kesterite-related solar cells is the low open-circuit voltage (VOC) relative to their bandgap. This drawback has been correlated with the easily formed anti-site defects caused by similar ionic radii and/or chemical valence. Recent success in suppressing Sn-related defects by using Cd to replace Zn in Cu2CdSnS4 was attributed to the higher formation energy of the 2CuCd + SnCd defect complex compared to its counterpart in Cu2ZnSnS4. This has motivated the use of bigger ions to replace Cu in Cu2CdSnS4 to reduce the possibilities of III and III defect formation. In this work, we substitute Cu in Cu2CdSnS4 with larger Ag at various concentrations and investigate the structural, optoelectronic, and photovoltaic properties of (Cu,Ag)2CdSnS4. Higher concentrations of Ag lead to peak splitting in XRD spectra, which is attributed to mixed phases and marks the transition towards Ag2CdSnS4. This is also complemented by Raman scattering analysis, the first time the Raman spectrum of Ag2CdSnS4 is reported. Doping type inversion was observed for pure n-type Ag2CdSnS4 instead of the p-type of Cu2CdSnS4, accompanied by high carrier mobility and sharp absorption onset. Further optoelectronic and photovoltaic characterization reveals that adding 5% Ag concentration improves Cu2CdSnS4 device performance to 7.72%, mainly due to superior film quality and improved interface properties. As a result, better carrier collection contributes to the short-circuit current improvement of the champion device.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-12-22
2024
2024-02-05
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/400976
https://dx.doi.org/10.1039/d3ta04529c
url https://hdl.handle.net/2117/400976
https://dx.doi.org/10.1039/d3ta04529c
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry (RSC)
publisher.none.fl_str_mv Royal Society of Chemistry (RSC)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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