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dc.contributor.author
Negre, Christian Francisco Andres
dc.contributor.author
Young, Karin J.
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Oviedo, María Belén
dc.contributor.author
Allen, Laura J.
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Sanchez, Cristian Gabriel
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Jarzembska , Katarzyna N.
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Benedict, Jason B.
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Crabtree, Robert H.
dc.contributor.author
Coppens, Philip
dc.contributor.author
Brudvig, Gary W.
dc.contributor.author
Batista, Víctor S.
dc.date.available
2017-12-26T17:36:26Z
dc.date.issued
2014-11
dc.identifier.citation
Negre, Christian Francisco Andres; Young, Karin J.; Oviedo, María Belén; Allen, Laura J.; Sanchez, Cristian Gabriel; et al.; Photoelectrochemical hole injection revealed in polyoxotitanate nanocrystals functionalized with organic adsorbates; American Chemical Society; Journal of the American Chemical Society; 136; 46; 11-2014; 16420-16429
dc.identifier.issn
0002-7863
dc.identifier.uri
http://hdl.handle.net/11336/31537
dc.description.abstract
We find that crystallographically resolved Ti17O24(OPri)20 nanoparticles, functionalized by covalent attachment of 4-nitrophenyl-acetylacetonate or coumarin 343 adsorbates, exhibit hole injection into surface states when photoexcited with visible light (λ = 400–680 nm). Our findings are supported by photoelectrochemical measurements, EPR spectroscopy, and quantum dynamics simulations of interfacial charge transfer. The underlying mechanism is consistent with measurements of photocathodic currents generated with visible light for thin layers of functionalized polyoxotitanate nanocrystals deposited on FTO working electrodes. The reported experimental and theoretical analysis demonstrates for the first time the feasibility of p-type sensitization of TiO2 solely based on covalent binding of organic adsorbates.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Photoinduced Electron Transfer
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Dye Sensitized Solar Cells
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Electron Paramagnetic Ressonance
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Quantum Dynamics
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Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Photoelectrochemical hole injection revealed in polyoxotitanate nanocrystals functionalized with organic adsorbates
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-21T17:00:18Z
dc.journal.volume
136
dc.journal.number
46
dc.journal.pagination
16420-16429
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Washington
dc.description.fil
Fil: Negre, Christian Francisco Andres. University of Yale; Estados Unidos
dc.description.fil
Fil: Young, Karin J.. University of Yale; Estados Unidos
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Fil: Oviedo, María Belén. Drexel University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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Fil: Allen, Laura J.. University of Yale; Estados Unidos
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Fil: Sanchez, Cristian Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
dc.description.fil
Fil: Jarzembska , Katarzyna N.. State University of New York; Estados Unidos. University of Warsaw,. Varsovia; Polonia
dc.description.fil
Fil: Benedict, Jason B.. State University of New York; Estados Unidos
dc.description.fil
Fil: Crabtree, Robert H.. University of Yale; Estados Unidos
dc.description.fil
Fil: Coppens, Philip. State University of New York; Estados Unidos
dc.description.fil
Fil: Brudvig, Gary W.. University of Yale; Estados Unidos
dc.description.fil
Fil: Batista, Víctor S.. University of Yale; Estados Unidos
dc.journal.title
Journal of the American Chemical Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/ja509270f
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/10.1021/ja509270f
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