Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices

Álvarez Suárez, Gustavo Hernando; López García, Alex J.; Estarlich Gil, Pau|||0000-0002-2308-6594; Asensi, José Miguel; Masmitjà Rusiñol, Gerard|||0000-0001-9541-7586; Ortega Villasclaras, Pablo Rafael|||0000-0001-6577-614X; Voz Sánchez, Cristóbal|||0000-0002-0320-9606; Puigdollers i González, Joaquim|||0000-0002-1834-2565; Perez Rodriguez, Alejandro

Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices

Transparent photovoltaic (TPV) devices represent a promising advance in photovoltaic technologies, particularly in building-integrated photovoltaics (BIPV). Unlike conventional photovoltaics, which primarily prioritize efficiency, TPV must balance between efficiency, transparency, and aesthetics. Th...

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Autores:	Álvarez Suárez, Gustavo Hernando, López García, Alex J., Estarlich Gil, Pau\|\|\|0000-0002-2308-6594, Asensi, José Miguel, Masmitjà Rusiñol, Gerard\|\|\|0000-0001-9541-7586, Ortega Villasclaras, Pablo Rafael\|\|\|0000-0001-6577-614X, Voz Sánchez, Cristóbal\|\|\|0000-0002-0320-9606, Puigdollers i González, Joaquim\|\|\|0000-0002-1834-2565, Perez Rodriguez, Alejandro
Tipo de recurso:	artículo
Fecha de publicación:	2025
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:2117/422217
Acceso en línea:	https://hdl.handle.net/2117/422217 https://dx.doi.org/10.1002/solr.202400816
Access Level:	acceso abierto
Palabra clave:	Photovoltaic power generation Transparent photovoltaics Amorphous silicon Selective contacts Inorganic solar cells Building-integrated photovoltaics BIPV Energia fotovoltaica--Generació Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica

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spelling	Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic DevicesÁlvarez Suárez, Gustavo HernandoLópez García, Alex J.Estarlich Gil, Pau\|\|\|0000-0002-2308-6594Asensi, José MiguelMasmitjà Rusiñol, Gerard\|\|\|0000-0001-9541-7586Ortega Villasclaras, Pablo Rafael\|\|\|0000-0001-6577-614XVoz Sánchez, Cristóbal\|\|\|0000-0002-0320-9606Puigdollers i González, Joaquim\|\|\|0000-0002-1834-2565Perez Rodriguez, AlejandroPhotovoltaic power generationTransparent photovoltaicsAmorphous siliconSelective contactsInorganic solar cellsBuilding-integrated photovoltaicsBIPVEnergia fotovoltaica--GeneracióÀrees temàtiques de la UPC::Energies::Energia solar fotovoltaicaTransparent photovoltaic (TPV) devices represent a promising advance in photovoltaic technologies, particularly in building-integrated photovoltaics (BIPV). Unlike conventional photovoltaics, which primarily prioritize efficiency, TPV must balance between efficiency, transparency, and aesthetics. These additional dimensions introduce unique challenges on device architecture. This article reports the development of wide-bandgap, inorganic-based TPV devices integrating ultrathin hydrogenated amorphous silicon (a-Si:H) as a transparent absorber, with carrier selective contacts and transparent electrodes. The article analyzes how absorber thickness influences the electrical, optical, and aesthetic performance of devices, evaluating key parameters in TPV such as light utilization efficiency (LUE), average photopic transmittance (APT), color rendering index (CRI), and electrical properties such as power conversion efficiency (PCE). The device structure is SLG/FTO/AZO/a-SiCx(n)/a-Si:H/V2Ox/AZO. This approach results in PCE ranging from 1.7% with an APT of 60% to a PCE of 4.1% with an APT of 28%, yielding LUE values between 0.9% and 1.3%. Device characterization encompasses optical spectrophotometry, J–V measurements under standard test conditions, spectral response analysis, and variable illumination measurements (VIM). Additionally, color characterization is conducted using CIE 1931 color space maps to determine the chromaticity coordinates, CRI, and the variation of color as a function of absorber thickness.John Wiley & sons20252025-01-0820252025-01-21journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/422217https://dx.doi.org/10.1002/solr.202400816reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4222172026-05-27T15:37:01Z
dc.title.none.fl_str_mv	Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices
title	Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices
spellingShingle	Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices Álvarez Suárez, Gustavo Hernando Photovoltaic power generation Transparent photovoltaics Amorphous silicon Selective contacts Inorganic solar cells Building-integrated photovoltaics BIPV Energia fotovoltaica--Generació Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
title_short	Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices
title_full	Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices
title_fullStr	Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices
title_full_unstemmed	Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices
title_sort	Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices
dc.creator.none.fl_str_mv	Álvarez Suárez, Gustavo Hernando López García, Alex J. Estarlich Gil, Pau\|\|\|0000-0002-2308-6594 Asensi, José Miguel Masmitjà Rusiñol, Gerard\|\|\|0000-0001-9541-7586 Ortega Villasclaras, Pablo Rafael\|\|\|0000-0001-6577-614X Voz Sánchez, Cristóbal\|\|\|0000-0002-0320-9606 Puigdollers i González, Joaquim\|\|\|0000-0002-1834-2565 Perez Rodriguez, Alejandro
author	Álvarez Suárez, Gustavo Hernando
author_facet	Álvarez Suárez, Gustavo Hernando López García, Alex J. Estarlich Gil, Pau\|\|\|0000-0002-2308-6594 Asensi, José Miguel Masmitjà Rusiñol, Gerard\|\|\|0000-0001-9541-7586 Ortega Villasclaras, Pablo Rafael\|\|\|0000-0001-6577-614X Voz Sánchez, Cristóbal\|\|\|0000-0002-0320-9606 Puigdollers i González, Joaquim\|\|\|0000-0002-1834-2565 Perez Rodriguez, Alejandro
author_role	author
author2	López García, Alex J. Estarlich Gil, Pau\|\|\|0000-0002-2308-6594 Asensi, José Miguel Masmitjà Rusiñol, Gerard\|\|\|0000-0001-9541-7586 Ortega Villasclaras, Pablo Rafael\|\|\|0000-0001-6577-614X Voz Sánchez, Cristóbal\|\|\|0000-0002-0320-9606 Puigdollers i González, Joaquim\|\|\|0000-0002-1834-2565 Perez Rodriguez, Alejandro
author2_role	author author author author author author author author
dc.subject.none.fl_str_mv	Photovoltaic power generation Transparent photovoltaics Amorphous silicon Selective contacts Inorganic solar cells Building-integrated photovoltaics BIPV Energia fotovoltaica--Generació Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
topic	Photovoltaic power generation Transparent photovoltaics Amorphous silicon Selective contacts Inorganic solar cells Building-integrated photovoltaics BIPV Energia fotovoltaica--Generació Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
description	Transparent photovoltaic (TPV) devices represent a promising advance in photovoltaic technologies, particularly in building-integrated photovoltaics (BIPV). Unlike conventional photovoltaics, which primarily prioritize efficiency, TPV must balance between efficiency, transparency, and aesthetics. These additional dimensions introduce unique challenges on device architecture. This article reports the development of wide-bandgap, inorganic-based TPV devices integrating ultrathin hydrogenated amorphous silicon (a-Si:H) as a transparent absorber, with carrier selective contacts and transparent electrodes. The article analyzes how absorber thickness influences the electrical, optical, and aesthetic performance of devices, evaluating key parameters in TPV such as light utilization efficiency (LUE), average photopic transmittance (APT), color rendering index (CRI), and electrical properties such as power conversion efficiency (PCE). The device structure is SLG/FTO/AZO/a-SiCx(n)/a-Si:H/V2Ox/AZO. This approach results in PCE ranging from 1.7% with an APT of 60% to a PCE of 4.1% with an APT of 28%, yielding LUE values between 0.9% and 1.3%. Device characterization encompasses optical spectrophotometry, J–V measurements under standard test conditions, spectral response analysis, and variable illumination measurements (VIM). Additionally, color characterization is conducted using CIE 1931 color space maps to determine the chromaticity coordinates, CRI, and the variation of color as a function of absorber thickness.
publishDate	2025
dc.date.none.fl_str_mv	2025 2025-01-08 2025 2025-01-21
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/2117/422217 https://dx.doi.org/10.1002/solr.202400816
url	https://hdl.handle.net/2117/422217 https://dx.doi.org/10.1002/solr.202400816
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-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/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-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv	openAccess
dc.format.none.fl_str_mv	application/pdf
dc.publisher.none.fl_str_mv	John Wiley & sons
publisher.none.fl_str_mv	John Wiley & sons
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	15.812429

Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a-Si:H Transparent Photovoltaic Devices

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