Efficient Wide-Bandgap Mixed-Cation and Mixed-Halide Perovskite Solar Cells by Vacuum Deposition
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Efficient Wide-Bandgap Mixed-Cation and Mixed-Halide Perovskite Solar Cells by Vacuum Deposition

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Efficient Wide-Bandgap Mixed-Cation and Mixed-Halide Perovskite Solar Cells by Vacuum Deposition

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dc.contributor.author Gil Escrig, Lidón
dc.contributor.author Dreessen, Chris
dc.contributor.author Palazón Huet, Francisco
dc.contributor.author Hawash, Zafer
dc.contributor.author Moons, Ellen
dc.contributor.author Albrecht, Steve
dc.contributor.author Sessolo, Michele
dc.contributor.author Bolink, Henk
dc.date.accessioned 2021-02-23T14:16:07Z
dc.date.available 2021-02-23T14:16:07Z
dc.date.issued 2021
dc.identifier.uri https://hdl.handle.net/10550/78087
dc.description.abstract Vacuum deposition methods are increasingly applied to the preparation of perovskite films and devices, in view of the possibility to prepare multilayer structures at low temperatures. Vacuum-deposited, wide-bandgap solar cells based on mixed cation and mixed anion perovskites have been scarcely reported, due to the challenges associated with the multiple-sources processing of perovskite thin-films. In this work, we describe a 4-sources vacuum deposition process to prepare wide-bandgap perovskites of the type FA1-nCsnPb(I1-xBrx)3 with tunable bandgap and controlled morphology, using FAI, CsI, PbI2 and PbBr2 as the precursors. The simultaneous sublimation of PbI2 and PbBr2 allows to decouple and control the relative Br/Cs content, resulting in homogeneous perovskite films with bandgap in the 1.7 eV-1.8 eV range and no detectable halide segregation. Solar cells based on 1.75 eV bandgap perovskites show efficiency up to 16.8% and promising stability, maintaining 90% of the initial efficiency after 2 weeks of operation.
dc.language.iso eng
dc.relation.ispartof Acs Energy Letters, 2021, vol. 6, num. 2, p. 827-836
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Gil Escrig, Lidón Dreessen, Chris Palazón Huet, Francisco Hawash, Zafer Moons, Ellen Albrecht, Steve Sessolo, Michele Bolink, Henk 2021 Efficient Wide-Bandgap Mixed-Cation and Mixed-Halide Perovskite Solar Cells by Vacuum Deposition Acs Energy Letters 6 2 827 836
dc.subject Cèl·lules fotoelèctriques
dc.subject Conductivitat elèctrica
dc.title Efficient Wide-Bandgap Mixed-Cation and Mixed-Halide Perovskite Solar Cells by Vacuum Deposition
dc.type info:eu-repo/semantics/article
dc.date.updated 2021-02-23T14:16:07Z
dc.identifier.doi https://doi.org/10.1021/acsenergylett.0c02445
dc.identifier.idgrec 143315

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