Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effects

High-resolution transmission electron microscopy is used to study interactions between thiol-capped Au clusters and amorphous C support films. The morphologies of the clusters are found to depend both on their size and on the local structure of the underlying C. When the C is amorphous, larger Au cl...

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Detalles Bibliográficos
Autores: Gontard, Lionel C., Dunin-Borkowski, Rafal E.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/109517
Acceso en línea:http://hdl.handle.net/10261/109517
Access Level:acceso abierto
Palabra clave:in situ TEM
Electron irradiation
Amorphous C
Thiol-protected clusters
Au clusters
Au atoms
Graphene
Graphite
Tribology
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spelling Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effectsGontard, Lionel C.Dunin-Borkowski, Rafal E.in situ TEMElectron irradiationAmorphous CThiol-protected clustersAu clustersAu atomsGrapheneGraphiteTribologyHigh-resolution transmission electron microscopy is used to study interactions between thiol-capped Au clusters and amorphous C support films. The morphologies of the clusters are found to depend both on their size and on the local structure of the underlying C. When the C is amorphous, larger Au clusters are crystalline, while smaller clusters are typically disordered. When the C is graphitic, the Au particles adopt either elongated shapes that maximize their contact with the edge of the C film or planar arrays when they contain few Au atoms. We demonstrate the influence of electron beam irradiation on the structure, shape and stability of the Au clusters, as well as on the formation of holes bounded by terraces of graphitic lamellae in the underlying C.Peer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201520152015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/109517reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.micron.2014.12.001Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1095172026-05-22T06:33:51Z
dc.title.none.fl_str_mv Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effects
title Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effects
spellingShingle Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effects
Gontard, Lionel C.
in situ TEM
Electron irradiation
Amorphous C
Thiol-protected clusters
Au clusters
Au atoms
Graphene
Graphite
Tribology
title_short Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effects
title_full Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effects
title_fullStr Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effects
title_full_unstemmed Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effects
title_sort Transmission electron microscopy of thiol-capped Au clusters on C: Structure and electron irradiation effects
dc.creator.none.fl_str_mv Gontard, Lionel C.
Dunin-Borkowski, Rafal E.
author Gontard, Lionel C.
author_facet Gontard, Lionel C.
Dunin-Borkowski, Rafal E.
author_role author
author2 Dunin-Borkowski, Rafal E.
author2_role author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv in situ TEM
Electron irradiation
Amorphous C
Thiol-protected clusters
Au clusters
Au atoms
Graphene
Graphite
Tribology
topic in situ TEM
Electron irradiation
Amorphous C
Thiol-protected clusters
Au clusters
Au atoms
Graphene
Graphite
Tribology
description High-resolution transmission electron microscopy is used to study interactions between thiol-capped Au clusters and amorphous C support films. The morphologies of the clusters are found to depend both on their size and on the local structure of the underlying C. When the C is amorphous, larger Au clusters are crystalline, while smaller clusters are typically disordered. When the C is graphitic, the Au particles adopt either elongated shapes that maximize their contact with the edge of the C film or planar arrays when they contain few Au atoms. We demonstrate the influence of electron beam irradiation on the structure, shape and stability of the Au clusters, as well as on the formation of holes bounded by terraces of graphitic lamellae in the underlying C.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/109517
url http://hdl.handle.net/10261/109517
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.micron.2014.12.001
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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