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Copper-Arsenic-Sulfide Thin-Films from Local Raw Materials Deposited via RF Co-Sputtering for Photovoltaics

dc.contributor.authorCenteno, Pedro
dc.contributor.authorAlexandre, Miguel
dc.contributor.authorNeves, Filipe
dc.contributor.authorFortunato, Elvira
dc.contributor.authorMartins, Rodrigo
dc.contributor.authorÁguas, Hugo
dc.contributor.authorMendes, Manuel Joao
dc.date.accessioned2022-11-30T15:05:06Z
dc.date.available2022-11-30T15:05:06Z
dc.date.issued2022-10
dc.description.abstractABSTRACT: he inexorable increase of energy demand and the efficiency bottleneck of monocrystalline silicon solar cell technology is promoting the research and development of alternative photovoltaic materials. Copper-arsenic-sulfide (CAS) compounds are still rather unexplored in the literature, yet they have been regarded as promising candidates for use as p-type absorber in solar cells, owing to their broad raw material availability, suitable bandgap and high absorption coefficient. Here, a comprehensive study is presented on the structural and optoelectronic properties of CAS thin-films deposited via radio-frequency magnetron co-sputtering, using a commercial Cu target together with a Cu-As-S target with material obtained from local resources, specifically from mines in the Portuguese region of the Iberian Pyrite Belt. Raman and X-ray diffraction analysis confirm that the use of two targets results in films with pronounced stoichiometry gradients, suggesting a transition from amorphous CAS compounds to crystalline djurleite (Cu31S16), with the increasing proximity to the Cu target. Resistivity values from 4.7 m ohm center dot cm to 17.4 ohm center dot cm are obtained, being the lowest resistive films, those with pronounced sub-bandgap free-carrier absorption. The bandgap values range from 2.20 to 2.65 eV, indicating promising application as wide-bandgap semiconductors in third-generation (e.g., multi-junction) photovoltaic devices.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCenteno, Pedro... [et.al.] - Copper-Arsenic-Sulfide Thin-Films from Local Raw Materials Deposited via RF Co-Sputtering for Photovoltaics. In: Nanomaterials, 2022, vol. 12(19), article nº 3268pt_PT
dc.identifier.doi10.3390/nano12193268pt_PT
dc.identifier.eissn2079-4991
dc.identifier.urihttp://hdl.handle.net/10400.9/3966
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationPTDC/NANOPT/28837/2017pt_PT
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relationLocal Resources for Multifunctional Tetrahedrite-based Energy-Harvesting Applications
dc.relationSYmbiosis for eNERGY harversting concepts for smart platforms on foils
dc.relationPhotonic-enhanced Quantum Nano-structured Perovskite Solar Cells
dc.relation.publisherversionhttps://doi.org/10.3390/nano12193268pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPhotovoltaic materialspt_PT
dc.subjectThin-film photovoltaicpt_PT
dc.subjectSemiconductorspt_PT
dc.subjectCopperpt_PT
dc.subjectArsenicpt_PT
dc.subjectSilicon solar cellspt_PT
dc.subjectRaw materials
dc.titleCopper-Arsenic-Sulfide Thin-Films from Local Raw Materials Deposited via RF Co-Sputtering for Photovoltaicspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardTitleLocal Resources for Multifunctional Tetrahedrite-based Energy-Harvesting Applications
oaire.awardTitleSYmbiosis for eNERGY harversting concepts for smart platforms on foils
oaire.awardTitlePhotonic-enhanced Quantum Nano-structured Perovskite Solar Cells
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50025%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50025%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEAM-PEC%2F29905%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/952169/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F148078%2F2019/PT
oaire.citation.titleNanomaterialspt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream3599-PPCDT
oaire.fundingStreamH2020
oaire.fundingStreamOE
person.familyNameCenteno
person.familyNameAlexandre
person.familyNameNeves
person.familyNameFortunato
person.familyNameMartins
person.familyNameÁguas
person.familyNameMendes
person.givenNamePedro
person.givenNameMiguel
person.givenNameFilipe
person.givenNameElvira
person.givenNameRodrigo
person.givenNameHugo
person.givenNameManuel Joao
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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