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dc.contributor.authorAeineh, Naemeh
dc.contributor.authorBarea, Eva M
dc.contributor.authorBehjat, Abbas
dc.contributor.authorSharifi, Nafiseh
dc.contributor.authorMora-Sero, Ivan
dc.date.accessioned2017-11-13T10:45:13Z
dc.date.available2017-11-13T10:45:13Z
dc.date.issued2017-03-29
dc.identifier.citationEINEH, Naemeh, et al. Inorganic Surface Engineering to Enhance Perovskite Solar Cell Efficiency. ACS Applied Materials & Interfaces, 2017, vol. 9, no 15, p. 13181-13187.ca_CA
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.urihttp://hdl.handle.net/10234/170008
dc.description.abstractThe photoconversion efficiency of perovskite solar cells (PSCs) is enhanced by the deposition of inorganic nanoparticles (NPs) at the interface between the compact TiO2 electron-selective contact and the mesoporous TiO2 film. The NPs used are core/shell Au@SiO2, where a thin SiO2 coating protects the Au core from the direct chemical interaction with CH3NH3PbI3 halide perovskite used as light-harvesting material. The samples prepared with Au@SiO2 NPs exhibit a higher external quantum efficiency in the complete wavelength range at which perovskite presents light absorption and not just at the wavelengths at which Au@SiO2 NPs present their absorption peak. This fact rules out a direct plasmonic process as responsible for the enhancement of cell performance. A detailed characterization by photoluminescence, impedance spectroscopy, and open-circuit voltage decay unveils a modification of the interfacial properties with an augmentation of the interfacial electrostatic potential that increases both photovoltage and photocurrent. This article highlights the dramatic role of interfaces in the performance of PSCs. The use of reduced quantities of highly stable inorganic compounds to modify the PSC interface instead of the extensively used organic compounds opens the door to a new surface engineering based on inorganic compounds.ca_CA
dc.format.extent7 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherAmerican Chemical Societyca_CA
dc.relation.isPartOfACS Applied Materials & Interfaces, 2017, vol. 9, no 15, p. 13181-13187ca_CA
dc.rightsCopyright © American Chemical Societyca_CA
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/*
dc.subjectAu@SiO2ca_CA
dc.subjectinorganicca_CA
dc.subjectPerovskiteca_CA
dc.subjectsolar cellca_CA
dc.subjectsurface engineeringca_CA
dc.titleInorganic Surface Engineering to Enhance Perovskite Solar Cell Efficiencyca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1021/acsami.7b01306
dc.relation.projectIDMINECO / project MAT2016-76892-C3-1-R; Generalitat Valenciana / project PROMETEOII/2014/020; SOLENPE / project UJIB2016-35ca_CA
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_CA
dc.relation.publisherVersionhttp://pubs.acs.org/doi/abs/10.1021/acsami.7b01306ca_CA
dc.contributor.funderThe authors acknowledge SCIC from University Jaume I for help in TEM characterization. N.A. thanks Iranian Ministry of Science and Technology (Tehran, Iran) and Yazd University for supporting her visit to the Institute of Advanced Materials (INAM) at Universitat Jaume I (Spain).ca_CA
dc.type.versioninfo:eu-repo/semantics/publishedVersionca_CA


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