Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopy

Anatase is a pivotal material in devices for energy-harvesting applications and catalysis. Methods for the accurate characterization of this reducible oxide at the atomic scale are critical in the exploration of outstanding properties for technological developments. Here we combine atomic force micr...

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Autores: Stetsovych, Oleksandr, Todorovi, Milica, Shimizu, Tomoko K., Moreno, Cesar|||0000-0003-2682-211X, Ryan, James William, Pérez León, Carmen, Sagisaka, Keisuke, Palomares, Emilio, Matolín, Vladimír, Fujita, Daisuke, Perez, Ruben, Custance, Oscar
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:204847
Acceso en línea:https://ddd.uab.cat/record/204847
https://dx.doi.org/urn:doi:10.1038/ncomms8265
Access Level:acceso abierto
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spelling Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopyStetsovych, OleksandrTodorovi, MilicaShimizu, Tomoko K.Moreno, Cesar|||0000-0003-2682-211XRyan, James WilliamPérez León, CarmenSagisaka, KeisukePalomares, EmilioMatolín, VladimírFujita, DaisukePerez, RubenCustance, OscarAnatase is a pivotal material in devices for energy-harvesting applications and catalysis. Methods for the accurate characterization of this reducible oxide at the atomic scale are critical in the exploration of outstanding properties for technological developments. Here we combine atomic force microscopy (AFM) and scanning tunnelling microscopy (STM), supported by first-principles calculations, for the simultaneous imaging and unambiguous identification of atomic species at the (101) anatase surface. We demonstrate that dynamic AFM-STM operation allows atomic resolution imaging within the materiala € s band gap. Based on key distinguishing features extracted from calculations and experiments, we identify candidates for the most common surface defects. Our results pave the way for the understanding of surface processes, like adsorption of metal dopants and photoactive molecules, that are fundamental for the catalytic and photovoltaic applications of anatase, and demonstrate the potential of dynamic AFM-STM for the characterization of wide band gap materials. 22015-01-0120152015-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/204847https://dx.doi.org/urn:doi:10.1038/ncomms8265reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Ciencia e Innovación https://doi.org/10.13039/501100004837 PLE2009-0061Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2011-023627Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CSD2010-00024open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2048472026-06-06T12:50:31Z
dc.title.none.fl_str_mv Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopy
title Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopy
spellingShingle Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopy
Stetsovych, Oleksandr
title_short Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopy
title_full Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopy
title_fullStr Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopy
title_full_unstemmed Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopy
title_sort Atomic species identification at the (101) anatase surface by simultaneous scanning tunnelling and atomic force microscopy
dc.creator.none.fl_str_mv Stetsovych, Oleksandr
Todorovi, Milica
Shimizu, Tomoko K.
Moreno, Cesar|||0000-0003-2682-211X
Ryan, James William
Pérez León, Carmen
Sagisaka, Keisuke
Palomares, Emilio
Matolín, Vladimír
Fujita, Daisuke
Perez, Ruben
Custance, Oscar
author Stetsovych, Oleksandr
author_facet Stetsovych, Oleksandr
Todorovi, Milica
Shimizu, Tomoko K.
Moreno, Cesar|||0000-0003-2682-211X
Ryan, James William
Pérez León, Carmen
Sagisaka, Keisuke
Palomares, Emilio
Matolín, Vladimír
Fujita, Daisuke
Perez, Ruben
Custance, Oscar
author_role author
author2 Todorovi, Milica
Shimizu, Tomoko K.
Moreno, Cesar|||0000-0003-2682-211X
Ryan, James William
Pérez León, Carmen
Sagisaka, Keisuke
Palomares, Emilio
Matolín, Vladimír
Fujita, Daisuke
Perez, Ruben
Custance, Oscar
author2_role author
author
author
author
author
author
author
author
author
author
author
description Anatase is a pivotal material in devices for energy-harvesting applications and catalysis. Methods for the accurate characterization of this reducible oxide at the atomic scale are critical in the exploration of outstanding properties for technological developments. Here we combine atomic force microscopy (AFM) and scanning tunnelling microscopy (STM), supported by first-principles calculations, for the simultaneous imaging and unambiguous identification of atomic species at the (101) anatase surface. We demonstrate that dynamic AFM-STM operation allows atomic resolution imaging within the materiala € s band gap. Based on key distinguishing features extracted from calculations and experiments, we identify candidates for the most common surface defects. Our results pave the way for the understanding of surface processes, like adsorption of metal dopants and photoactive molecules, that are fundamental for the catalytic and photovoltaic applications of anatase, and demonstrate the potential of dynamic AFM-STM for the characterization of wide band gap materials.
publishDate 2015
dc.date.none.fl_str_mv 2
2015-01-01
2015
2015-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/204847
https://dx.doi.org/urn:doi:10.1038/ncomms8265
url https://ddd.uab.cat/record/204847
https://dx.doi.org/urn:doi:10.1038/ncomms8265
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 PLE2009-0061
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2011-023627
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CSD2010-00024
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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