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Charge transfer processes at the semiconductor/electrolyte interface for solar fuel production: insight from impedance spectroscopy
dc.contributor.author | Bertoluzzi, Luca | |
dc.contributor.author | Lopez-Varo, Pilar | |
dc.contributor.author | Jiménez Tejada, Juan Antonio | |
dc.contributor.author | Bisquert, Juan | |
dc.date.accessioned | 2016-05-31T10:34:16Z | |
dc.date.available | 2016-05-31T10:34:16Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | BERTOLUZZI, Luca, et al. Charge transfer processes at the semiconductor/electrolyte interface for solar fuel production: insight from impedance spectroscopy. Journal of Materials Chemistry A, 2016, vol. 4, no. 8, p. 2873-2879 | ca_CA |
dc.identifier.issn | 2050-7488 | |
dc.identifier.issn | 2050-7496 | |
dc.identifier.uri | http://hdl.handle.net/10234/160128 | |
dc.description.abstract | Knowledge of the nature of charge transfer processes at the semiconductor/electrolyte interface is crucial for the optimization of semiconductors used for solar fuel production. In the literature, there are two types of charge transfer mechanisms: (i) direct hole transfer from the valence band and (ii) indirect hole transfer via surface states. In this paper, we discuss both processes in the steady state regime through full drift-diffusion simulations considering the concomitant influence of the electric field and surface states at the semiconductor/electrolyte interface. We discuss the role of surface states and valence band holes in the photo-anodic current. We subsequently analyze both hole transfer processes in a dynamic regime via the impedance spectroscopy (IS) method. We provide a solid criterion to discriminate both mechanisms and discuss some experimental examples from the literature. | ca_CA |
dc.description.sponsorShip | The research leading to these results has received funding from the European Union Seventh Framework Program [FP7/2007-2013] under grant agreement 316494 and MINECO of Spain under project MAT2013-47192-C3-1-R. This work was also supported by Ministerio de Educación y Ciencia under research Grant FPU12/02712, and under research Project from MINECO, TEC2013-47283-R. | ca_CA |
dc.format.extent | 7 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Royal Society of Chemistry | ca_CA |
dc.relation.isPartOf | Journal of Materials Chemistry A, 2016, vol. 4, no. 8 | ca_CA |
dc.rights | © The Royal Society of Chemistry. | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | solar fuel production | ca_CA |
dc.subject | charge transfer | ca_CA |
dc.subject | electric fields | ca_CA |
dc.subject | spectroscopy | ca_CA |
dc.subject | surface states | ca_CA |
dc.subject | valence bands | ca_CA |
dc.title | Charge transfer processes at the semiconductor/electrolyte interface for solar fuel production: insight from impedance spectroscopy | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1039/C5TA03210E | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://pubs.rsc.org/en/content/articlehtml/2016/ta/c5ta03210e | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion |
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