Electrochemically Assisted Growth of CsPbBr3-Based Solar Cells Without Selective Contacts

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dc.contributor.authorRamírez, Daniel
dc.contributor.authorRiveros, Gonzalo
dc.contributor.authorDíaz, Patricia
dc.contributor.authorVerdugo, Javier
dc.contributor.authorNúñez, Gerard
dc.contributor.authorLizama, Susy
dc.contributor.authorLazo, Pamela
dc.contributor.authorContreras-Bernal, Lidia
dc.contributor.authorRiquelme, Antonio
dc.contributor.authorIdigoras, Jesús
dc.contributor.authorDalchiele, Enrique A.
dc.contributor.authorGau, Daniel L.
dc.contributor.authorMarotti, Ricardo E.
dc.contributor.authorAnta, Juan A.
dc.date.accessioned2022-03-15T19:21:57Z
dc.date.available2022-03-15T19:21:57Z
dc.date.issued2020
dc.description.abstractIn this work we report a simple and cost-effective CsPbBr3- based solar cell without ordinary selective contacts. To do so we follow an electrochemical approach consisting of three successive steps: (1) electrodeposition of PbO2 directly on top of FTO substrates, (2) heterogeneous phase reaction with gaseous HBr and (3) spin-coating of methanolic CsBr solutions followed by annealing. This method is more adequate for large- scale environmentally friendly production as it reduces chemical waste, particularly toxic lead. The resulting films were structurally and optically characterized showing good coverage of the FTO substrates, absence of defects such as pinholes and orthorhombic structure. Photovoltaic and impedance characterization was carried out by pressing a carbon coated metal spring onto the CsPbBr3 film until obtaining maximized opencircuit potential (Voc) and short-circuit photocurrent density (jsc) under simulated sunlight. The stabilized current at fixed voltage (SCFV) technique gave a maximum PCE value of 2.70% close to devices with similar configuration. Impedance measurements demonstrated analogous behavior to that of state-of-art CsPbBr3 based solar cells, comprising a recombination arc at midhigh frequencies, geometrical capacitance and ideality factors closed to 2, typical of SRH recombination in the perovskite bulk.en_ES
dc.facultadFacultad de Cienciasen_ES
dc.identifier.doidoi.org/10.1002/celc.202000782
dc.identifier.urihttp://repositoriobibliotecas.uv.cl/handle/uvscl/3845
dc.language.isoenen_ES
dc.publisherEuropean Chemical Societies Publishingen_ES
dc.rights© 2020 Wiley-VCH GmbHen_ES
dc.sourceChemElectroChemen_ES
dc.titleElectrochemically Assisted Growth of CsPbBr3-Based Solar Cells Without Selective Contactsen_ES
dc.typeArticuloen_ES
uv.catalogadorRCR DIBRAen_ES
uv.departamentoInstituto de Quimica y Bioquimicaen_ES

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