Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates

Autores
Gutiérrez, Marina V.; Scarpettini, Alberto Franco
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Monodisperse gold nanorods with different sizes were synthesized and adsorbed on chemically modified glass substrates. Influence of surfactant molar concentration on nanorod adsorption was studied and the optimum range was determined. During substrate coverages we monitored the growth of longitudinal localized surface plasmon resonances at short times due to density increase of isolated nanorods and, at longer times, their subsequent decrease and a concurrent growth of coupling resonances owing to nanoparticle surface mobility and aggregation. Temporal evolution of amplitudes of resonance peaks in extinction spectra and nanorod counting statistics in electron micrographs were used to model both coverage and aggregation processes, as exponentiallike functions of time. Their characteristic times and saturation values were analyzed and related to kinetic parameters, nanorod dimensions and extinction coefficients. This work can be used as a predictive tool to prepare plasmonic substrates with desired optical resonances.
Universidad Tecnológica Nacional, Argentina [PIDUTN 3541 and PID-UTI 4836].
Fil: Gutiérrez, Marina V. Universidad Tecnológica Nacional. Facultad Regional Delta. Grupo de Fotónica Aplicada; Argentina.
Fil: Scarpettini, Alberto Franco. Universidad Tecnológica Nacional. Facultad Regional Delta. Grupo de Fotónica Aplicada; Argentina.
Fil: Scarpettini, Alberto Franco. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Peer Reviewed
Fuente
Colloid and Interface Science Communications 33, 100213 (2019)
Materia
Plasmonics
Gold nanorods
Coverage and aggregation
Localized surface plasmon resonances
SERS substrates
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2024-03-19T19:53:22Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/9906
Acceder
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network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Kinetic and plasmonic properties of gold nanorods adsorbed on glass substratesGutiérrez, Marina V.Scarpettini, Alberto FrancoPlasmonicsGold nanorodsCoverage and aggregationLocalized surface plasmon resonancesSERS substratesMonodisperse gold nanorods with different sizes were synthesized and adsorbed on chemically modified glass substrates. Influence of surfactant molar concentration on nanorod adsorption was studied and the optimum range was determined. During substrate coverages we monitored the growth of longitudinal localized surface plasmon resonances at short times due to density increase of isolated nanorods and, at longer times, their subsequent decrease and a concurrent growth of coupling resonances owing to nanoparticle surface mobility and aggregation. Temporal evolution of amplitudes of resonance peaks in extinction spectra and nanorod counting statistics in electron micrographs were used to model both coverage and aggregation processes, as exponentiallike functions of time. Their characteristic times and saturation values were analyzed and related to kinetic parameters, nanorod dimensions and extinction coefficients. This work can be used as a predictive tool to prepare plasmonic substrates with desired optical resonances.Universidad Tecnológica Nacional, Argentina [PIDUTN 3541 and PID-UTI 4836].Fil: Gutiérrez, Marina V. Universidad Tecnológica Nacional. Facultad Regional Delta. Grupo de Fotónica Aplicada; Argentina.Fil: Scarpettini, Alberto Franco. Universidad Tecnológica Nacional. Facultad Regional Delta. Grupo de Fotónica Aplicada; Argentina.Fil: Scarpettini, Alberto Franco. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Peer Reviewed2024-03-19T19:53:22Z2024-03-19T19:53:22Z2019-10-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfColloid and Interface Science Communications (ISSN: 2215-0382) 33, 100213 (2019)2215-0382http://hdl.handle.net/20.500.12272/9906Colloid and Interface Science Communications 33, 100213 (2019)reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacionalenghttps://www.sciencedirect.com/science/article/abs/pii/S2215038219301190info:eu-repo/semantics/openAccess2024-03-19T19:53:22Zhttp://creativecommons.org/licenses/by/4.0/Atribución 4.0 InternacionalElsevierAtribución (by)2026-09-24T12:48:37Zoai:ria.utn.edu.ar:20.500.12272/9906instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-09-24 12:48:38.036Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
title Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
spellingShingle Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
Gutiérrez, Marina V.
Plasmonics
Gold nanorods
Coverage and aggregation
Localized surface plasmon resonances
SERS substrates
title_short Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
title_full Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
title_fullStr Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
title_full_unstemmed Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
title_sort Kinetic and plasmonic properties of gold nanorods adsorbed on glass substrates
dc.creator.none.fl_str_mv Gutiérrez, Marina V.
Scarpettini, Alberto Franco
author Gutiérrez, Marina V.
author_facet Gutiérrez, Marina V.
Scarpettini, Alberto Franco
author_role author
author2 Scarpettini, Alberto Franco
author2_role author
dc.subject.none.fl_str_mv Plasmonics
Gold nanorods
Coverage and aggregation
Localized surface plasmon resonances
SERS substrates
topic Plasmonics
Gold nanorods
Coverage and aggregation
Localized surface plasmon resonances
SERS substrates
dc.description.none.fl_txt_mv Monodisperse gold nanorods with different sizes were synthesized and adsorbed on chemically modified glass substrates. Influence of surfactant molar concentration on nanorod adsorption was studied and the optimum range was determined. During substrate coverages we monitored the growth of longitudinal localized surface plasmon resonances at short times due to density increase of isolated nanorods and, at longer times, their subsequent decrease and a concurrent growth of coupling resonances owing to nanoparticle surface mobility and aggregation. Temporal evolution of amplitudes of resonance peaks in extinction spectra and nanorod counting statistics in electron micrographs were used to model both coverage and aggregation processes, as exponentiallike functions of time. Their characteristic times and saturation values were analyzed and related to kinetic parameters, nanorod dimensions and extinction coefficients. This work can be used as a predictive tool to prepare plasmonic substrates with desired optical resonances.
Universidad Tecnológica Nacional, Argentina [PIDUTN 3541 and PID-UTI 4836].
Fil: Gutiérrez, Marina V. Universidad Tecnológica Nacional. Facultad Regional Delta. Grupo de Fotónica Aplicada; Argentina.
Fil: Scarpettini, Alberto Franco. Universidad Tecnológica Nacional. Facultad Regional Delta. Grupo de Fotónica Aplicada; Argentina.
Fil: Scarpettini, Alberto Franco. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.
Peer Reviewed
description Monodisperse gold nanorods with different sizes were synthesized and adsorbed on chemically modified glass substrates. Influence of surfactant molar concentration on nanorod adsorption was studied and the optimum range was determined. During substrate coverages we monitored the growth of longitudinal localized surface plasmon resonances at short times due to density increase of isolated nanorods and, at longer times, their subsequent decrease and a concurrent growth of coupling resonances owing to nanoparticle surface mobility and aggregation. Temporal evolution of amplitudes of resonance peaks in extinction spectra and nanorod counting statistics in electron micrographs were used to model both coverage and aggregation processes, as exponentiallike functions of time. Their characteristic times and saturation values were analyzed and related to kinetic parameters, nanorod dimensions and extinction coefficients. This work can be used as a predictive tool to prepare plasmonic substrates with desired optical resonances.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-24
2024-03-19T19:53:22Z
2024-03-19T19:53:22Z
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 Colloid and Interface Science Communications (ISSN: 2215-0382) 33, 100213 (2019)
2215-0382
http://hdl.handle.net/20.500.12272/9906
identifier_str_mv Colloid and Interface Science Communications (ISSN: 2215-0382) 33, 100213 (2019)
2215-0382
url http://hdl.handle.net/20.500.12272/9906
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.sciencedirect.com/science/article/abs/pii/S2215038219301190
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2024-03-19T19:53:22Z
http://creativecommons.org/licenses/by/4.0/
Atribución 4.0 Internacional
Elsevier
Atribución (by)
eu_rights_str_mv openAccess
rights_invalid_str_mv 2024-03-19T19:53:22Z
http://creativecommons.org/licenses/by/4.0/
Atribución 4.0 Internacional
Elsevier
Atribución (by)
dc.format.none.fl_str_mv pdf
application/pdf
dc.source.none.fl_str_mv Colloid and Interface Science Communications 33, 100213 (2019)
reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
_version_ 1877230969582256128
score 13.24418

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