Structural characterization of as-grown and quasi-free standing graphene layers on SiC

We report on a comparative structural characterization of two types of high quality epitaxial graphene layers grown by CVD on 4H-SiC(0001). The layers under study are a single layer graphene on top of a buffer layer and a quasi-free-standing graphene obtained by intercalation of hydrogen underneath...

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Autores: Aceituno Bueno, Rebeca, Palacio, Irene, Munuera, C., Aballe, Lucía, Foerster, Michael, Strupinski, Wlodek, García-Hernández, Mar, Martín-Gago, José A., López, María Francisca
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/170738
Acceso en línea:http://hdl.handle.net/10261/170738
Access Level:acceso abierto
Palabra clave:Graphene
SiC
LEEM/PEEM
STM
CVD
H-intercalation
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spelling Structural characterization of as-grown and quasi-free standing graphene layers on SiCAceituno Bueno, RebecaPalacio, IreneMunuera, C.Aballe, LucíaFoerster, MichaelStrupinski, WlodekGarcía-Hernández, MarMartín-Gago, José A.López, María FranciscaGrapheneSiCLEEM/PEEMSTMCVDH-intercalationWe report on a comparative structural characterization of two types of high quality epitaxial graphene layers grown by CVD on 4H-SiC(0001). The layers under study are a single layer graphene on top of a buffer layer and a quasi-free-standing graphene obtained by intercalation of hydrogen underneath the buffer layer. We determine the morphology and structure of both layers by different complementary in-situ and ex-situ surface techniques. We found the existence of large islands in both samples but with different size distribution. Photoemission electron microscopy (PEEM) measurements were performed to get information about the chemical environment of the different regions. The study reveals that monolayer graphene prevails in most of the surface terraces, while a bilayer and trilayer graphene presence is observed at the steps, stripes along steps and islands.Financial support from EU Horizon 2020 research and innovation program under grant agreement No. 785219 (Graphene Flagship Core2-Graphene-based disruptive technologies) and Spanish MINECO (grants MAT2017-85089-C2-1-R, MAT2014-52405-C2-2-R, RYC-2014-16626) is acknowledged.Peer reviewedElsevierEuropean CommissionMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201820182019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/170738reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/785219info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-85089-C2-1-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-52405-C2-2-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RYC-2014-16626https://doi.org/10.1016/j.apsusc.2018.09.262Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1707382026-05-22T06:33:51Z
dc.title.none.fl_str_mv Structural characterization of as-grown and quasi-free standing graphene layers on SiC
title Structural characterization of as-grown and quasi-free standing graphene layers on SiC
spellingShingle Structural characterization of as-grown and quasi-free standing graphene layers on SiC
Aceituno Bueno, Rebeca
Graphene
SiC
LEEM/PEEM
STM
CVD
H-intercalation
title_short Structural characterization of as-grown and quasi-free standing graphene layers on SiC
title_full Structural characterization of as-grown and quasi-free standing graphene layers on SiC
title_fullStr Structural characterization of as-grown and quasi-free standing graphene layers on SiC
title_full_unstemmed Structural characterization of as-grown and quasi-free standing graphene layers on SiC
title_sort Structural characterization of as-grown and quasi-free standing graphene layers on SiC
dc.creator.none.fl_str_mv Aceituno Bueno, Rebeca
Palacio, Irene
Munuera, C.
Aballe, Lucía
Foerster, Michael
Strupinski, Wlodek
García-Hernández, Mar
Martín-Gago, José A.
López, María Francisca
author Aceituno Bueno, Rebeca
author_facet Aceituno Bueno, Rebeca
Palacio, Irene
Munuera, C.
Aballe, Lucía
Foerster, Michael
Strupinski, Wlodek
García-Hernández, Mar
Martín-Gago, José A.
López, María Francisca
author_role author
author2 Palacio, Irene
Munuera, C.
Aballe, Lucía
Foerster, Michael
Strupinski, Wlodek
García-Hernández, Mar
Martín-Gago, José A.
López, María Francisca
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Graphene
SiC
LEEM/PEEM
STM
CVD
H-intercalation
topic Graphene
SiC
LEEM/PEEM
STM
CVD
H-intercalation
description We report on a comparative structural characterization of two types of high quality epitaxial graphene layers grown by CVD on 4H-SiC(0001). The layers under study are a single layer graphene on top of a buffer layer and a quasi-free-standing graphene obtained by intercalation of hydrogen underneath the buffer layer. We determine the morphology and structure of both layers by different complementary in-situ and ex-situ surface techniques. We found the existence of large islands in both samples but with different size distribution. Photoemission electron microscopy (PEEM) measurements were performed to get information about the chemical environment of the different regions. The study reveals that monolayer graphene prevails in most of the surface terraces, while a bilayer and trilayer graphene presence is observed at the steps, stripes along steps and islands.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2019
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/10261/170738
url http://hdl.handle.net/10261/170738
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/785219
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-85089-C2-1-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-52405-C2-2-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RYC-2014-16626
https://doi.org/10.1016/j.apsusc.2018.09.262
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 15,812429

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