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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/43907
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dc.creatorCassiano Rabelo e Silvapt_BR
dc.creatorThiago de Lourenço e Vasconcelospt_BR
dc.creatorBruno Carvalho Públiopt_BR
dc.creatorHudson Luiz Silva de Mirandapt_BR
dc.creatorLuiz Gustavo de Oliveira Lopes Cançadopt_BR
dc.creatorAdo Jorio de Vasconcelospt_BR
dc.date.accessioned2022-08-03T12:50:07Z-
dc.date.available2022-08-03T12:50:07Z-
dc.date.issued2020-08-20-
dc.citation.volume14pt_BR
dc.citation.issue2pt_BR
dc.citation.spage024056-1pt_BR
dc.citation.epage024056-6pt_BR
dc.identifier.doihttps://doi.org/10.1103/PhysRevApplied.14.024056pt_BR
dc.identifier.issn23317019pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/43907-
dc.description.resumoOn nanomaterials characterization, the evolution from the broadly utilized micro-Raman spectroscopy to a nanoscale regime is taking place with the improvements in tip-enhanced Raman spectroscopy (TERS). It is not clear, however, to which extent protocols developed within the diffraction-limited far-field configuration apply to the near-field regime. Defects in graphene nanoflakes are investigated in this work in both micro and nano regimes, showing that the Raman characteristics utilized to quantify defects in the far-field regime actually change in the presence of the TERS tip, generating incompatible results. The micro-tonano spectral mismatch can be modeled using a theory of spatial coherence in near-field Raman scattering, from which a parameterization procedure can be derived in order to obtain consistent results. The incompatibilities observed here for graphene should also happen in other structures relevant to nanoscience and nanotechnology when explored in the nano-Raman regime, and they can be resolved similarly.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e Projetospt_BR
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)pt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICApt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofPhysical Review Appliedpt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectTERSpt_BR
dc.subjectGraphenept_BR
dc.subjectDefectpt_BR
dc.subject.otherEspectroscopia de Ramanpt_BR
dc.subject.otherGrafenopt_BR
dc.subject.otherNanomateriaispt_BR
dc.titleLinkage between micro- and nano-Raman spectroscopy of defects in graphenept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.14.024056pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0488-2242pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0195-444Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9946-5224pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0816-0888pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5978-2735pt_BR
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