Combining nitrogen substitutional defects and oxygen intercalation to control the graphene corrugation and doping level

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dc.contributor.author Martín-Recio, Ana
dc.contributor.author Romero-Muñiz, Carlos
dc.contributor.author Pou, Pablo
dc.contributor.author Pérez, Rubén
dc.contributor.author Gómez-Rodríguez, José M.
dc.contributor.other UAM. Departamento de Física de la Materia Condensada es_ES
dc.contributor.other UAM. Departamento de Física Teórica de la Materia Condensada es_ES
dc.contributor.other Centro de Investigación en Fisica de la Materia Condensada (IFIMAC) es_ES
dc.contributor.other Ciencia de Materiales "Nicolás Cabrera" (INC) es_ES
dc.date.accessioned 2018-08-21T12:53:53Z
dc.date.available 2018-08-21T12:53:53Z
dc.date.issued 2018-01-03
dc.identifier.citation Carbon 130 (2018): 362-368 en_US
dc.identifier.issn 0008-6223 es_ES
dc.identifier.uri http://hdl.handle.net/10486/684661
dc.description.abstract By means of Scanning Tunneling Microscopy (STM) experiments and first-principles calculations, we demonstrate the synergetic effect of the combination of two different strategies to modify the properties of graphene supported on a strongly interacting substrate like Rh. A complete control of the corrugation and doping level is achieved combining the introduction of nitrogen defects and oxygen intercalation. Firstly, we show how to use ion bombardment to obtain purely-substitutional N-doped graphene on Rh(111) with tunable dopant concentration. In a second step, the interaction with the substrate is controlled by the amount of intercalated oxygen atoms. Unlike weakly interacting substrates, the highly corrugated structure of G/Rh(111) leads to remarkable variations of the electronic properties associated with nitrogen defects created in the high and low areas of the moiré. After oxygen intercalation, the N-doped graphene layer decouples from the substrate preserving the incorporated nitrogen atoms, which display a subtle dependence of the STM contrast. First–principles calculations confirm the identification of substitutional N-defects and the recovery of the Dirac cone with a tunable shift governed by the nitrogen concentration. Our results support the combination of different modification techniques to tailor structural and electronic properties of graphene and other 2D materials en_US
dc.description.sponsorship We thank the financial support from AEI and FEDER under project MAT2016-77852-C2-2-R (AEI/FEDER, UE) and from MINECO under projects CSD2010-00024, MAT2014-54484-P and MDM-2014-0377. CRM is grateful to FPI-UAM graduate scholarship program and Fundación Universia for financial support en_US
dc.format.extent 16 pag. es_ES
dc.format.mimetype application/pdf en
dc.language.iso eng en
dc.publisher Elsevier Ltd. en_US
dc.relation.ispartof Carbon en_US
dc.rights © 2018 Elsevier Ltd en_US
dc.subject.other Density functional theory en_US
dc.subject.other Graphene en_US
dc.subject.other Nitrogen doping en_US
dc.subject.other Scanning tunneling microscopy en_US
dc.title Combining nitrogen substitutional defects and oxygen intercalation to control the graphene corrugation and doping level en_US
dc.type article en
dc.subject.eciencia Física es_ES
dc.date.embargoend 2020-01-03
dc.relation.publisherversion https://doi.org/10.1016/j.carbon.2017.12.117 es_ES
dc.identifier.doi 10.1016/j.carbon.2017.12.117 es_ES
dc.identifier.publicationfirstpage 362 es_ES
dc.identifier.publicationissue 130 es_ES
dc.identifier.publicationlastpage 368 es_ES
dc.identifier.publicationvolume Carbon en_US
dc.relation.projectID Gobierno de España. MAT2016-77852-C2-2-R es_ES
dc.relation.projectID Gobierno de España. CSD2010-00024 es_ES
dc.relation.projectID Gobierno de España. MAT2014-54484-P es_ES
dc.relation.projectID Gobierno de España. MDM-2014-0377 es_ES
dc.type.version info:eu-repo/semantics/acceptedVersion en
dc.rights.cc Reconocimiento – NoComercial – SinObraDerivada es_ES
dc.rights.accessRights embargoedAccess en
dc.authorUAM Pou Bell, Pablo (262784)


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