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dc.contributor.authorContreras-Bernal, Lidia
dc.contributor.authorAranda Alonso, Clara
dc.contributor.authorValles-Pelarda, Marta
dc.contributor.authorNgo, Thi Tuyen
dc.contributor.authorRamos-Terrón, Susana
dc.contributor.authorGallardo, Jesús
dc.contributor.authorNavas, Javier
dc.contributor.authorGuerrero, Antonio
dc.contributor.authorMora-Sero, Ivan
dc.contributor.authorIdígoras, Jesús
dc.contributor.authorAnta, Juan A.
dc.date.accessioned2019-02-06T13:04:52Z
dc.date.available2019-02-06T13:04:52Z
dc.date.issued2018-02
dc.identifier.citationCONTRERAS-BERNAL, Lidia, et al. Homeopathic Perovskite Solar Cells: Effect of Humidity during Fabrication on the Performance and Stability of the Device. The Journal of Physical Chemistry C, 2018, 122.10: 5341-5348.ca_CA
dc.identifier.urihttp://hdl.handle.net/10234/180778
dc.description.abstractRapid degradation in humid environments is a major drawback of methylammonium lead iodide (CH3NH3PbI3), which is the archetypical component of perovskite solar cells. In this work, we have investigated the aging and degradation kinetics of CH3NH3PbI3 films and devices fabricated under controlled conditions as a function of relative humidity (RH) and compared their performance with those that were prepared under dry conditions. The aging and degradation kinetics is monitored by optical absorption and impedance spectroscopy measurements under monochromatic illumination at two different wavelengths. Aged devices show a substantial difference between the recombination rate under red and blue light illumination, which is attributed to the enhancement of local recombination routes upon aging. Interestingly, we observe that this feature is less pronounced in devices prepared under conditions of the highest RH of 50%. In general, we found that these devices keep their original electric properties and withstand a humid environment better. Chemical analysis by X-ray photoelectron spectroscopy reveals the presence of coordinating water in the CH3NH3PbI3 crystalline structure. This indicates that the presence of a small amount of water has a beneficial effect against degradation in a humid environment.ca_CA
dc.format.extent7 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherAmerican Chemical Societyca_CA
dc.rightsCopyright © 2018 American Chemical Societyca_CA
dc.subjectperovskite solar cellsca_CA
dc.subjecthumidity controlca_CA
dc.subjectperovskiteca_CA
dc.subjectsolar cellsca_CA
dc.subjectdegradationca_CA
dc.titleHomeopathic Perovskite Solar Cells: Effect of Humidity during Fabrication on the Performance and Stability of the Deviceca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1021/acs.jpcc.8b01558
dc.relation.projectIDJunta de Andalucía (grant FQM 1851 and FQM 2310) ; Ministerio de Economía y Competitividad of Spain (grants MAT2013-47192-C3-3-R and MAT2016-76892-C3-2-R and Red de Excelencia “Emerging photovoltaic Technologies”) ; Generalitat Valenciana, DISOLAR2 (PROMETEOII/2014/020) ; Spanish Ministerio de Economía y Competitividad, Ramón y Cajal Fellowship (RYC-2014-16809).ca_CA
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttps://pubs.acs.org/doi/abs/10.1021/acs.jpcc.8b01558ca_CA
dc.date.embargoEndDate2019-02
dc.contributor.funderServicio de Microscopía Electrónica de la Universidad Pablo de Olavideca_CA
dc.type.versioninfo:eu-repo/semantics/acceptedVersionca_CA


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