The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles

Autores
Perassi, Eduardo Marcelo; Coronado, Eduardo A.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Hot spots (HSs) between two nanoparticles (NPs) can be considered the canonical example of plasmonic coupling effects and are able to achieve huge enhancements of signals from molecules in fluorescence and Raman spectroscopy. In this work, it is found that these HSs between two NPs can be modeled as a superposition of sub-HSs that are located on the surface of each NP of the pair, a fact that can be important to describe plasmon coupling effects. The analyzed HSs are almost fully characterized by means of their energy, degree of localization, and mean enhancement, quantities that are able to give a measure of their performance. It is demonstrated that the interplay between the energy and degree of localization is what actually determines the enhancement in a general way, that is, HSs with similar energy could have a large/small enhancement depending on their degree of localization.
Fil: Perassi, Eduardo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Coronado, Eduardo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
Plasmonics
Optical Properties of Noble Metal Nanoparticles
Sers
Near Field Enhancement
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/24874
Acceder
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spelling The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two NanoparticlesPerassi, Eduardo MarceloCoronado, Eduardo A.PlasmonicsOptical Properties of Noble Metal NanoparticlesSersNear Field Enhancementhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Hot spots (HSs) between two nanoparticles (NPs) can be considered the canonical example of plasmonic coupling effects and are able to achieve huge enhancements of signals from molecules in fluorescence and Raman spectroscopy. In this work, it is found that these HSs between two NPs can be modeled as a superposition of sub-HSs that are located on the surface of each NP of the pair, a fact that can be important to describe plasmon coupling effects. The analyzed HSs are almost fully characterized by means of their energy, degree of localization, and mean enhancement, quantities that are able to give a measure of their performance. It is demonstrated that the interplay between the energy and degree of localization is what actually determines the enhancement in a general way, that is, HSs with similar energy could have a large/small enhancement depending on their degree of localization.Fil: Perassi, Eduardo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Coronado, Eduardo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaAmerican Chemical Society2013-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24874Perassi, Eduardo Marcelo; Coronado, Eduardo A.; The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles; American Chemical Society; Journal of Physical Chemistry C; 117; 15; 3-2013; 7744-77501932-7447CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/jp308834einfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/jp308834einfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:43:01Zoai:ri.conicet.gov.ar:11336/24874instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:43:01.604CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles
title The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles
spellingShingle The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles
Perassi, Eduardo Marcelo
Plasmonics
Optical Properties of Noble Metal Nanoparticles
Sers
Near Field Enhancement
title_short The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles
title_full The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles
title_fullStr The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles
title_full_unstemmed The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles
title_sort The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles
dc.creator.none.fl_str_mv Perassi, Eduardo Marcelo
Coronado, Eduardo A.
author Perassi, Eduardo Marcelo
author_facet Perassi, Eduardo Marcelo
Coronado, Eduardo A.
author_role author
author2 Coronado, Eduardo A.
author2_role author
dc.subject.none.fl_str_mv Plasmonics
Optical Properties of Noble Metal Nanoparticles
Sers
Near Field Enhancement
topic Plasmonics
Optical Properties of Noble Metal Nanoparticles
Sers
Near Field Enhancement
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Hot spots (HSs) between two nanoparticles (NPs) can be considered the canonical example of plasmonic coupling effects and are able to achieve huge enhancements of signals from molecules in fluorescence and Raman spectroscopy. In this work, it is found that these HSs between two NPs can be modeled as a superposition of sub-HSs that are located on the surface of each NP of the pair, a fact that can be important to describe plasmon coupling effects. The analyzed HSs are almost fully characterized by means of their energy, degree of localization, and mean enhancement, quantities that are able to give a measure of their performance. It is demonstrated that the interplay between the energy and degree of localization is what actually determines the enhancement in a general way, that is, HSs with similar energy could have a large/small enhancement depending on their degree of localization.
Fil: Perassi, Eduardo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Coronado, Eduardo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description Hot spots (HSs) between two nanoparticles (NPs) can be considered the canonical example of plasmonic coupling effects and are able to achieve huge enhancements of signals from molecules in fluorescence and Raman spectroscopy. In this work, it is found that these HSs between two NPs can be modeled as a superposition of sub-HSs that are located on the surface of each NP of the pair, a fact that can be important to describe plasmon coupling effects. The analyzed HSs are almost fully characterized by means of their energy, degree of localization, and mean enhancement, quantities that are able to give a measure of their performance. It is demonstrated that the interplay between the energy and degree of localization is what actually determines the enhancement in a general way, that is, HSs with similar energy could have a large/small enhancement depending on their degree of localization.
publishDate 2013
dc.date.none.fl_str_mv 2013-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/24874
Perassi, Eduardo Marcelo; Coronado, Eduardo A.; The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles; American Chemical Society; Journal of Physical Chemistry C; 117; 15; 3-2013; 7744-7750
1932-7447
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24874
identifier_str_mv Perassi, Eduardo Marcelo; Coronado, Eduardo A.; The Structure, Energy, Confinement, and Enhancement of Hot Spots between Two Nanoparticles; American Chemical Society; Journal of Physical Chemistry C; 117; 15; 3-2013; 7744-7750
1932-7447
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/jp308834e
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/jp308834e
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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