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Anodized aluminum-silicon alloy counter electrode substrates for next generation solar cell applications

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dc.contributor.authorALPAY SARI, NESLİHAN
dc.contributor.authorsAlpay, Neslihan; Benehkohal, Nima Parsi; Cote, Marie-Pier; Demopoulos, George P.; Brochu, Mathieu
dc.date.accessioned2022-03-13T12:49:09Z
dc.date.available2022-03-13T12:49:09Z
dc.date.issued2015
dc.description.abstractAluminum-silicon (Al-Si) alloy based counter electrode substrates were developed for next generation solar cells. Controlled anodization was performed on the Al-Si alloys to form an aluminum oxide (AO) with corrosion resistant microstructure. Presence of secondary Si particles in the Al-Si alloy system facilitated electrical conduction across the insulating AO film. In this way, aluminum is rendered suitable as substrate for photovoltaic applications without having to resort to its coating with costly conductive metals such as titanium. Current density-voltage (J-V) measurements of dye-sensitized solar cells (DSSCs) based on the new Al-Si alloys yielded a high power conversion efficiency (eta) of up to 6.13% under 1 Sun illumination condition, essentially matching the conversion efficiency, eta = 6.7%, of a reference DSSC with fluorine-doped tin oxide (FTO) glass based electrode substrates. The microstructure of the Al-Si alloys and the anodized oxide films was studied in detail by FE-SEM and XPS and correlated to the device performance. Differences between the photovoltaic characteristics of the cells were analyzed further by electrochemical impedance spectroscopy and optical reflectance spectroscopy measurements. (C) 2015 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.apsusc.2015.08.058
dc.identifier.eissn1873-5584
dc.identifier.issn0169-4332
dc.identifier.urihttps://hdl.handle.net/11424/238264
dc.identifier.wosWOS:000365351600041
dc.language.isoeng
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofAPPLIED SURFACE SCIENCE
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAluminum
dc.subjectCounter electrode
dc.subjectAnodization
dc.subjectPhotovoltaic device
dc.subjectDye-sensitized solar cell
dc.subjectTIO2 FILMS
dc.subjectMETAL-SUBSTRATE
dc.subjectLOW-COST
dc.subjectPERFORMANCE
dc.subjectFABRICATION
dc.subjectEFFICIENCY
dc.subjectSHEET
dc.subjectSPECTROSCOPY
dc.subjectSENSITIZER
dc.subjectPROGRESS
dc.titleAnodized aluminum-silicon alloy counter electrode substrates for next generation solar cell applications
dc.typearticle
dspace.entity.typePublication
local.avesis.ide6f28c3e-2dd7-43c7-964a-e64abbcf4aa4
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.journal.numberofpages8
oaire.citation.endPage324
oaire.citation.startPage317
oaire.citation.titleAPPLIED SURFACE SCIENCE
oaire.citation.volume356
relation.isAuthorOfPublication23cf0ad3-02f8-4cd1-a43c-a5b947a00765
relation.isAuthorOfPublication.latestForDiscovery23cf0ad3-02f8-4cd1-a43c-a5b947a00765

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