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https://hdl.handle.net/1822/91766
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Campo DC | Valor | Idioma |
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dc.contributor.author | Alves, Marina | por |
dc.contributor.author | Anacleto, Pedro | por |
dc.contributor.author | Teixeira, Vasco M. P. | por |
dc.contributor.author | Carneiro, Joaquim A. O. | por |
dc.contributor.author | Sadewasser, Sascha | por |
dc.date.accessioned | 2024-06-12T11:44:52Z | - |
dc.date.available | 2024-06-12T11:44:52Z | - |
dc.date.issued | 2024-03-20 | - |
dc.identifier.citation | lves, M.; Anacleto, P.; Teixeira, V.; Carneiro, J.; Sadewasser, S. Fabrication of Pre-Structured Substrates and Growth of CIGS Micro-Absorbers. Nanomaterials 2024, 14, 543. https://doi.org/10.3390/nano14060543 | por |
dc.identifier.uri | https://hdl.handle.net/1822/91766 | - |
dc.description.abstract | Second-generation thin-film Cu(In, Ga)Se2 (CIGS) solar cells are a well-established photovoltaic technology with a record power conversion efficiency of 23.6%. However, their reliance on critical raw materials, such as In and Ga, requires new approaches to reduce the amount of critical raw materials employed. The micro-concentrator concept involves the combination of thin-film photovoltaic technology with concentrator photovoltaic technology. This approach reduces the size of the solar cell to the micrometer range and uses optical concentration to collect sunlight from a larger area, focusing it onto micro solar cells. This work is devoted to the development of a process for manufacturing pre-structured substrates with regular arrays of holes with 200 and 250 μm diameters inside a SiOx insulating matrix. Subsequently, a Cu–In–Ga precursor is deposited by sputtering, followed by photoresist lift-off and the application of a Cu–In–Ga thermal annealing at 500 ◦C to improve precursor quality and assess pre-structured substrate stability under elevated temperatures. Finally, a two-stage selenization process leads to the formation of CIGS absorber micro-dots. This study presents in detail the fabrication process and explores the feasibility of a bottom-up approach using pre-structured substrates, addressing challenges encountered during fabrication and providing insights for future improvements in CIGS absorber materials. | por |
dc.description.sponsorship | This research was funded by Fundação para a Ciência e a Tecnologia (FCT), PhD Scholarship number 2020.06063BD and partially funded by the UIDB/04650/2020 Strategic Project of the Physics Center of the University of Minho and Porto. | por |
dc.language.iso | eng | por |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04650%2F2020/PT | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | CIGS | por |
dc.subject | Thin-film photovoltaics | por |
dc.subject | Micro-concentrator photovoltaics | por |
dc.subject | Sputtering | por |
dc.subject | Micro solar cell | por |
dc.title | Fabrication of pre-structured substrates and growth of CIGS micro-absorbers | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.mdpi.com/2079-4991/14/6/543 | por |
oaire.citationStartPage | 1 | por |
oaire.citationEndPage | 12 | por |
oaire.citationIssue | 6 | por |
oaire.citationVolume | 14 | por |
dc.identifier.eissn | 2079-4991 | - |
dc.identifier.doi | 10.3390/nano14060543 | por |
dc.subject.fos | Engenharia e Tecnologia::Engenharia dos Materiais | por |
sdum.journal | Nanomaterials | por |
oaire.version | VoR | por |
dc.identifier.articlenumber | 543 | por |
dc.subject.ods | Energias renováveis e acessíveis | por |
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nanomaterials-14-00543-1.pdf | 10,07 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons