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Optical characterization of lead-free Cs2SnI6 double Perovskite Fabricated from degraded and reconstructed CsSnI3 films

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dc.affiliation.dptoUC3M. Departamento de Tecnología Electrónicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Displays y Aplicaciones Fotónicases
dc.contributor.authorLópez Fraguas, Eduardo
dc.contributor.authorDasi, Sofía
dc.contributor.authorMora Sero, Iván
dc.contributor.funderEuropean Commissionen
dc.contributor.funderMinisterio de Educación y Formación Profesional (España)es
dc.date.accessioned2022-07-13T08:43:15Z
dc.date.available2022-07-13T08:43:15Z
dc.date.issued2019-12-23
dc.description.abstractHalide perovskites have experienced a huge development in the past years, but they still have two major challenges for their massive implantation: the long-term stability and the use of lead. One of the most obvious lead-free candidates to replace these perovskites is CsSnI3, but due to its poor environmental stability, it has been discarded for the fabrication of stable devices. Nevertheless, ambient degradation of CsSnI3 and ulterior reconstruction produce a relatively stable lead-free Cs2SnI6 double perovskite with interesting optical properties that have not been deeply characterized previously. In this work, the potential use for the optical properties of Cs2SnI6 is studied and compared with that of the most common halide perovskite, CH3NH3PbI3 (MAPbI3). The Cs2SnI6 films stayed in a standard atmosphere for a week without showing any signs of degradation. They also demonstrated better reflective behavior than MAPbI3 and higher absorption in the 650 and 730 nm spectral range, making this material interesting for the development of photodetectors in this region. This study demonstrates that Cs2SnI6 is a promising material for photodevices, as it highlights its main characteristics and optical parameters, giving an original view on the use of the double perovskite, but at the same time emphasizing the need to improve the electrical properties for the development of efficient optoelectronic devices.en
dc.description.sponsorshipE.L.-F. wants to express his gratitude to the Ministerio de Educación y Formación Profesional for his doctoral grant (FPU research fellowship FPU17/00612) and his research stay grant (EST18/00399). This work was partially supported by the European Research Council (ERC) via Consolidator Grant (724424-No-LIMIT) and the European Commission via FET Open Grant (862656 - DROP-IT). We acknowledge SCIC from Jaume I University (UJI) for help with XRD and SEM-EDS characterization.en
dc.format.extent6
dc.identifier.bibliographicCitationLópez-Fraguas, E., Masi, S., & Mora-Seró, I. (2019). Optical Characterization of Lead-Free Cs2SnI6 Double Perovskite Fabricated from Degraded and Reconstructed CsSnI3 Films. In ACS Applied Energy Materials, 2(12), 8381–8387en
dc.identifier.doihttps://doi.org/10.1021/acsaem.9b01827
dc.identifier.issn2574-0962
dc.identifier.publicationfirstpage8381
dc.identifier.publicationissue12
dc.identifier.publicationlastpage8387
dc.identifier.publicationtitleACS Applied Energy Materialsen
dc.identifier.publicationvolume2
dc.identifier.urihttps://hdl.handle.net/10016/35446
dc.identifier.uxxiAR/0000024047
dc.language.isoengen
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.projectIDGobierno de España. FPU17/00612es
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/724424/No-LIMITen
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/862656/DROP-ITen
dc.rights© 2019 American Chemical Societyen
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.otherOptical Characterizationen
dc.subject.otherLead-Freeen
dc.subject.otherPerovskiteen
dc.subject.otherCoevaporationen
dc.subject.otherDepositionen
dc.subject.otherTin Halideen
dc.subject.otherFull Inorganicen
dc.titleOptical characterization of lead-free Cs2SnI6 double Perovskite Fabricated from degraded and reconstructed CsSnI3 filmsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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