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dc.contributor.authorBecerril Romero, Ignacio
dc.contributor.authorSylla, Dioulde
dc.contributor.authorPlacidi, Marcel Jose
dc.contributor.authorSánchez González, Yudania
dc.contributor.authorAndrade Arvizu, Jacob
dc.contributor.authorIzquierdo Roca, Víctor
dc.contributor.authorGuc, Maxim
dc.contributor.authorPérez Rodríguez, Alejandro
dc.contributor.authorGrini, Sigbjørn
dc.contributor.authorVines, Lasse
dc.contributor.authorPusay Villarroel, Benjamín Andrés
dc.contributor.authorAlmache Hernández, Rosa Estefanía
dc.contributor.authorPuigdollers i González, Joaquim
dc.contributor.authorPistor, Jan Paul
dc.contributor.authorSaucedo Silva, Edgardo Ademar
dc.contributor.authorEspindola Rodríguez, Moisés
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.contributor.otherInstitut de Recerca en Energía de Catalunya
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria Electrònica
dc.identifier.citationBecerril, I. [et al.]. Transition metal oxides for kesterite solar cells developed on transparent substrates. "ACS Applied materials and interfaces", 1 Juliol 2020, vol. 12, núm. 30, p. 33656-33669.
dc.descriptionThis document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Transition-Metal Oxides for Kesterite Solar Cells Developed on Transparent Substrates, copyright © American Chemical Society after peer review. To access the final edited and published work see
dc.description.abstractFabrication on transparent soda-lime glass/fluorine-doped tin oxide (FTO) substrates opens the way to advanced applications for kesterite solar cells such as semitransparent, bifacial, and tandem devices, which are key to the future of the PV market. However, the complex behavior of the p-kesterite/n-FTO back-interface potentially limits the power conversion efficiency of such devices. Overcoming this issue requires careful interface engineering. This work empirically explores the use of transition-metal oxides (TMOs) and Mo-based nanolayers to improve the back-interface of Cu2ZnSnSe4, Cu2ZnSnS4, and Cu2ZnSn(S,Se)4 solar cells fabricated on transparent glass/FTO substrates. Although the use of TMOs alone is found to be highly detrimental to the devices inducing complex current-blocking behaviors, the use of Mo:Na nanolayers and their combination with n-type TMOs TiO2 and V2O5 are shown to be a very promising strategy to improve the limited performance of kesterite devices fabricated on transparent substrates. The optoelectronic, morphological, structural, and in-depth compositional characterization performed on the devices suggests that the improvements observed are related to a combination of shunt insulation and recombination reduction. This way, record efficiencies of 6.1, 6.2, and 7.9% are obtained for Cu2ZnSnSe4, Cu2ZnSnS4, and Cu2ZnSn(S,Se)4 devices, respectively, giving proof of the potential of TMOs for the development of kesterite solar cells on transparent substrates.
dc.description.sponsorshipThis research was supported by the H2020 Programme under the project INFINITE-CELL (H2020-MSCA-RISE-2017-777968), by the Ministry of Science and Innovation of Spain under IGNITE project (ENE2017-87671-C3-1-R), by the European Regional Development Funds (ERDF, FEDER Programa Competitivitat de Catalunya 2007–2013) and CERCA Programme / Generalitat de Catalunya. Authors from IREC belong to the SEMS (Solar Energy Materials and Systems) Consolidated Research Group of the “Generalitat de Catalunya” (Ref. 2017 SGR 862)
dc.format.extent14 p.
dc.subjectÀrees temàtiques de la UPC::Energies::Energia solar fotovoltaica::Cèl·lules solars
dc.subject.lcshSolar cells
dc.subject.otherThin film
dc.subject.otherTransition-metal oxides
dc.subject.otherTransparent substrate
dc.subject.otherInterface engineering
dc.titleTransition metal oxides for kesterite solar cells developed on transparent substrates
dc.subject.lemacCèl·lules solars
dc.contributor.groupUniversitat Politècnica de Catalunya. MNT - Grup de Recerca en Micro i Nanotecnologies
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/777968/EU/International cooperation for the development of cost-efficient kesterite%2Fc-Si thin film next generation tandem solar cells/INFINITE-CELL
local.citation.authorBecerril, I.; D. Sylla; Placidi, M.; Sánchez, Y.; Andrade, J.; Izquierdo, V.; Guc, M.; Pérez Rodríguez, Alejandro; Grini, S.; Vines, L.; Pusay, B.; Almache, R.; Puigdollers, J.; Pistor, J.P.; Saucedo Silva, Edgardo; Espindola, M.
local.citation.publicationNameACS Applied materials and interfaces

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