3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates

© <2018>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

Detalles Bibliográficos
Autores: Jin, Chen, Martín García, Isidro|||0000-0001-8833-9057, Ortega Villasclaras, Pablo Rafael|||0000-0001-6577-614X, Calle Martín, Eric, Alcubilla González, Ramón|||0000-0003-4827-4513
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/132892
Acceso en línea:https://hdl.handle.net/2117/132892
https://dx.doi.org/10.1016/j.solener.2018.04.022
Access Level:acceso abierto
Palabra clave:Solar cells
Electrical shading
Interdigitated back contact (IBC)
Thin c-Si substrate
3D TCAD
Cèl·lules solars
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
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spelling 3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substratesJin, ChenMartín García, Isidro|||0000-0001-8833-9057Ortega Villasclaras, Pablo Rafael|||0000-0001-6577-614XCalle Martín, EricAlcubilla González, Ramón|||0000-0003-4827-4513Solar cellsElectrical shadingInterdigitated back contact (IBC)Thin c-Si substrate3D TCADCèl·lules solarsÀrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars© <2018>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/Interdigitated back contact technology is a promising candidate to be applied to thin crystalline silicon solar cells because of its simpler one-side interconnection while allowing a more flexible front surface treatment. This work explores the efficiency potential of IBC c-Si solar cells applied to thin c-Si substrates through 3D device simulations. In particular, we explore the impact of substrate thickness and front surface recombination velocity on cell performance with special attention to the different behavior in carrier collection of two different rear-surface doping structures. Firstly, the model is validated by comparing simulation results to a fabricated device on 280¿µm-thick substrates with stripe-like p+ and n+ diffusions. It is revealed that efficiencies of 16–17% are reachable for substrates on the 10–15¿µm range without changing the technology developed for thick ones. Next, the rear doping structure is modified leading to doped regions just under the metal contacts. This type of structure is expected in solar cells where high-temperature diffusions are replaced by point-like laser doped contacts, which is a feasible alternative to be applied to thin substrates. Simulation results show that diffusion length requirements for those locally-doped structures are more demanding due to the reduction of emitter regions. As a result, very well passivated front and rear surfaces are required to maintain short-circuit current densities to reasonable values. Finally, for both structures open-circuit voltage is kept almost constant with reduced thickness, despite the strong reduction in short-circuit current. Simulations show a reduction of dark saturation current density with substrate thinning due to the redistribution of dark current densities that flow parallel to the device surface.Peer Reviewed20182018-06-0120192019-05-10journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/vnd.openxmlformats-officedocument.wordprocessingml.documenthttps://hdl.handle.net/2117/132892https://dx.doi.org/10.1016/j.solener.2018.04.022reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengMinisterio de Economía y Competitividad http://doi.org/10.13039/501100003329 TEC2014-59736-R CELULAS SOLARES DE SILICIO CRISTALINO CON CONTACTOS POSTERIORES BASADAS EN EL PROCESADO LASER DE CAPAS DIELECTRICASAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016 TEC2017-82305-R CELULAS SOLARES CON CONTACTOS POSTERIORES BASADAS EN SUBSTRATOS DELGADOS DE SILICIO CRISTALINOopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1328922026-05-27T15:37:01Z
dc.title.none.fl_str_mv 3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates
title 3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates
spellingShingle 3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates
Jin, Chen
Solar cells
Electrical shading
Interdigitated back contact (IBC)
Thin c-Si substrate
3D TCAD
Cèl·lules solars
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
title_short 3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates
title_full 3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates
title_fullStr 3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates
title_full_unstemmed 3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates
title_sort 3D simulations of interdigitated back-contacted crystalline silicon solar cells on thin substrates
dc.creator.none.fl_str_mv Jin, Chen
Martín García, Isidro|||0000-0001-8833-9057
Ortega Villasclaras, Pablo Rafael|||0000-0001-6577-614X
Calle Martín, Eric
Alcubilla González, Ramón|||0000-0003-4827-4513
author Jin, Chen
author_facet Jin, Chen
Martín García, Isidro|||0000-0001-8833-9057
Ortega Villasclaras, Pablo Rafael|||0000-0001-6577-614X
Calle Martín, Eric
Alcubilla González, Ramón|||0000-0003-4827-4513
author_role author
author2 Martín García, Isidro|||0000-0001-8833-9057
Ortega Villasclaras, Pablo Rafael|||0000-0001-6577-614X
Calle Martín, Eric
Alcubilla González, Ramón|||0000-0003-4827-4513
author2_role author
author
author
author
dc.subject.none.fl_str_mv Solar cells
Electrical shading
Interdigitated back contact (IBC)
Thin c-Si substrate
3D TCAD
Cèl·lules solars
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
topic Solar cells
Electrical shading
Interdigitated back contact (IBC)
Thin c-Si substrate
3D TCAD
Cèl·lules solars
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
description © <2018>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-06-01
2019
2019-05-10
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/132892
https://dx.doi.org/10.1016/j.solener.2018.04.022
url https://hdl.handle.net/2117/132892
https://dx.doi.org/10.1016/j.solener.2018.04.022
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://doi.org/10.13039/501100003329 TEC2014-59736-R CELULAS SOLARES DE SILICIO CRISTALINO CON CONTACTOS POSTERIORES BASADAS EN EL PROCESADO LASER DE CAPAS DIELECTRICAS
Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016 TEC2017-82305-R CELULAS SOLARES CON CONTACTOS POSTERIORES BASADAS EN SUBSTRATOS DELGADOS DE SILICIO CRISTALINO
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/vnd.openxmlformats-officedocument.wordprocessingml.document
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 15,300724

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