Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurements

Tip-enhanced Raman spectroscopy (TERS) has reached nanometer spatial resolution for measurements performed at ambient conditions and subnanometer resolution at ultrahigh vacuum. Super-resolution (beyond the tip apex diameter) TERS has been obtained mostly in the gap mode configuration, where a condu...

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Detalles Bibliográficos
Autores: Hudson Luiz Silva de Miranda, Ado Jorio de Vasconcelos, Cassiano Rabelo e Silva, Luiz Gustavo de Oliveira Lopes Cançado, Thiago de Lourenço e Vasconcelos, Bruno Santos de Oliveira, Florian Schulz, Holger Lange, Stephanie Reich, Patryk Kusch
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Brasil
Institución:Universidade Federal de Minas Gerais (UFMG)
Repositorio:Repositório Institucional da UFMG
Idioma:inglés
OAI Identifier:oai:repositorio.ufmg.br:1843/44026
Acceso en línea:https://doi.org/10.1103/PhysRevResearch.2.023408
http://hdl.handle.net/1843/44026
https://orcid.org/0000-0002-9946-5224
https://orcid.org/0000-0002-5978-2735
https://orcid.org/0000-0003-0488-2242
https://orcid.org/0000-0003-0816-0888
https://orcid.org/0000-0003-0195-444X
https://orcid.org/0000-0003-4440-3680
https://orcid.org/0000-0002-4236-2806
https://orcid.org/0000-0002-2391-0256
Access Level:acceso abierto
Palabra clave:TERS
Tip-Enhanced Raman Spectroscopy
Graphene
Nanophotonics
Espectroscopia de Raman
Grafeno
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spelling Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurementsTERSTip-Enhanced Raman SpectroscopyGrapheneNanophotonicsEspectroscopia de RamanGrafenoTip-enhanced Raman spectroscopy (TERS) has reached nanometer spatial resolution for measurements performed at ambient conditions and subnanometer resolution at ultrahigh vacuum. Super-resolution (beyond the tip apex diameter) TERS has been obtained mostly in the gap mode configuration, where a conductive substrate localizes the electric fields. Here we present experimental and theoretical TERS to explore the field distribution responsible for spectral enhancement. We use gold tips of 40 ± 10 nm apex diameter to measure TERS on graphene, a spatially delocalized two-dimensional sample, sitting on different substrates: (i) glass, (ii) a thin layer of gold and (iii) a surface covered with 12 nm diameter gold spheres, for which 6 nm resolution is achieved at ambient conditions. The super-resolution is due to the field configuration resulting from the coupled tip-sample-substrate system, exhibiting a nontrivial spatial surface distribution. The field distribution and the symmetry selection rules are different for nongap versus gap mode configurations. This influences the overall enhancement which depends on the Raman mode symmetry and substrate structure.CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas GeraisCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e ProjetosUniversidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICAICX - DEPARTAMENTO DE FÍSICAUFMG2022-08-08T12:12:38Z2022-08-08T12:12:38Z2020-06-29info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdfhttps://doi.org/10.1103/PhysRevResearch.2.02340826431564http://hdl.handle.net/1843/44026https://orcid.org/0000-0002-9946-5224https://orcid.org/0000-0002-5978-2735https://orcid.org/0000-0003-0488-2242https://orcid.org/0000-0003-0816-0888https://orcid.org/0000-0003-0195-444Xhttps://orcid.org/0000-0003-4440-3680https://orcid.org/0000-0002-4236-2806https://orcid.org/0000-0002-2391-0256engPhysical Review Researchinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGHudson Luiz Silva de MirandaAdo Jorio de VasconcelosCassiano Rabelo e SilvaLuiz Gustavo de Oliveira Lopes CançadoThiago de Lourenço e VasconcelosBruno Santos de OliveiraFlorian SchulzHolger LangeStephanie ReichPatryk Kusch2022-08-08T12:12:38Zoai:repositorio.ufmg.br:1843/44026Repositório InstitucionalPUBhttps://repositorio.ufmg.br/oairepositorio@ufmg.bropendoar:2022-08-08T12:12:38Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
dc.title.none.fl_str_mv Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurements
title Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurements
spellingShingle Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurements
Hudson Luiz Silva de Miranda
TERS
Tip-Enhanced Raman Spectroscopy
Graphene
Nanophotonics
Espectroscopia de Raman
Grafeno
title_short Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurements
title_full Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurements
title_fullStr Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurements
title_full_unstemmed Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurements
title_sort Impact of substrate on Tip-Enhanced Raman Spectroscopy: a comparison between field-distribution simulations and graphene measurements
dc.creator.none.fl_str_mv Hudson Luiz Silva de Miranda
Ado Jorio de Vasconcelos
Cassiano Rabelo e Silva
Luiz Gustavo de Oliveira Lopes Cançado
Thiago de Lourenço e Vasconcelos
Bruno Santos de Oliveira
Florian Schulz
Holger Lange
Stephanie Reich
Patryk Kusch
author Hudson Luiz Silva de Miranda
author_facet Hudson Luiz Silva de Miranda
Ado Jorio de Vasconcelos
Cassiano Rabelo e Silva
Luiz Gustavo de Oliveira Lopes Cançado
Thiago de Lourenço e Vasconcelos
Bruno Santos de Oliveira
Florian Schulz
Holger Lange
Stephanie Reich
Patryk Kusch
author_role author
author2 Ado Jorio de Vasconcelos
Cassiano Rabelo e Silva
Luiz Gustavo de Oliveira Lopes Cançado
Thiago de Lourenço e Vasconcelos
Bruno Santos de Oliveira
Florian Schulz
Holger Lange
Stephanie Reich
Patryk Kusch
author2_role author
author
author
author
author
author
author
author
author
dc.subject.por.fl_str_mv TERS
Tip-Enhanced Raman Spectroscopy
Graphene
Nanophotonics
Espectroscopia de Raman
Grafeno
topic TERS
Tip-Enhanced Raman Spectroscopy
Graphene
Nanophotonics
Espectroscopia de Raman
Grafeno
description Tip-enhanced Raman spectroscopy (TERS) has reached nanometer spatial resolution for measurements performed at ambient conditions and subnanometer resolution at ultrahigh vacuum. Super-resolution (beyond the tip apex diameter) TERS has been obtained mostly in the gap mode configuration, where a conductive substrate localizes the electric fields. Here we present experimental and theoretical TERS to explore the field distribution responsible for spectral enhancement. We use gold tips of 40 ± 10 nm apex diameter to measure TERS on graphene, a spatially delocalized two-dimensional sample, sitting on different substrates: (i) glass, (ii) a thin layer of gold and (iii) a surface covered with 12 nm diameter gold spheres, for which 6 nm resolution is achieved at ambient conditions. The super-resolution is due to the field configuration resulting from the coupled tip-sample-substrate system, exhibiting a nontrivial spatial surface distribution. The field distribution and the symmetry selection rules are different for nongap versus gap mode configurations. This influences the overall enhancement which depends on the Raman mode symmetry and substrate structure.
publishDate 2020
dc.date.none.fl_str_mv 2020-06-29
2022-08-08T12:12:38Z
2022-08-08T12:12:38Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://doi.org/10.1103/PhysRevResearch.2.023408
26431564
http://hdl.handle.net/1843/44026
https://orcid.org/0000-0002-9946-5224
https://orcid.org/0000-0002-5978-2735
https://orcid.org/0000-0003-0488-2242
https://orcid.org/0000-0003-0816-0888
https://orcid.org/0000-0003-0195-444X
https://orcid.org/0000-0003-4440-3680
https://orcid.org/0000-0002-4236-2806
https://orcid.org/0000-0002-2391-0256
url https://doi.org/10.1103/PhysRevResearch.2.023408
http://hdl.handle.net/1843/44026
https://orcid.org/0000-0002-9946-5224
https://orcid.org/0000-0002-5978-2735
https://orcid.org/0000-0003-0488-2242
https://orcid.org/0000-0003-0816-0888
https://orcid.org/0000-0003-0195-444X
https://orcid.org/0000-0003-4440-3680
https://orcid.org/0000-0002-4236-2806
https://orcid.org/0000-0002-2391-0256
identifier_str_mv 26431564
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physical Review Research
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Minas Gerais
Brasil
ENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICA
ICX - DEPARTAMENTO DE FÍSICA
UFMG
publisher.none.fl_str_mv Universidade Federal de Minas Gerais
Brasil
ENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICA
ICX - DEPARTAMENTO DE FÍSICA
UFMG
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFMG
instname:Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
instname_str Universidade Federal de Minas Gerais (UFMG)
instacron_str UFMG
institution UFMG
reponame_str Repositório Institucional da UFMG
collection Repositório Institucional da UFMG
repository.name.fl_str_mv Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)
repository.mail.fl_str_mv repositorio@ufmg.br
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score 15.300724

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