Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations

Autores
Scarpettini, Alberto; Della Picca, Fabricio; Gutierrez, Marina; Bragas, Andrea
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Light absorption in gold nanoparticles leads to metal heating that induces photothermal reshaping because of atomic surface diffusion at temperatures well below the gold melting point. In this work, we perform time-resolved experiments to measure the frequencies of the extensional coherent mechanical mode in single gold nanorods, as a monitor of the changes in their aspect ratio produced by this photoinduced reshaping. We show that photothermal reshaping always occurs in typical pump–probe experiments conducted in air even at low-excitation light irradiance and usually long measuring times. The reshaping effect can be reduced by a polymer coating, which allows faster heat dissipation from the nanoparticle to the environment.
Fil: Universidad Tecnológica Nacional. Facultad Regional Delta
Peer Reviewed
Materia
UTN
FRD
gold nanoparticles
photothermal reshaping
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/3758
Acceder
id RIAUTN_977fd8f36c080178eaea63bc49bad4cc
oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/3758
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical OscillationsScarpettini, AlbertoDella Picca, FabricioGutierrez, MarinaBragas, AndreaUTNFRDgold nanoparticlesphotothermal reshapingLight absorption in gold nanoparticles leads to metal heating that induces photothermal reshaping because of atomic surface diffusion at temperatures well below the gold melting point. In this work, we perform time-resolved experiments to measure the frequencies of the extensional coherent mechanical mode in single gold nanorods, as a monitor of the changes in their aspect ratio produced by this photoinduced reshaping. We show that photothermal reshaping always occurs in typical pump–probe experiments conducted in air even at low-excitation light irradiance and usually long measuring times. The reshaping effect can be reduced by a polymer coating, which allows faster heat dissipation from the nanoparticle to the environment.Fil: Universidad Tecnológica Nacional. Facultad Regional DeltaPeer Reviewed2019-06-28T19:14:40Z2019-06-28T19:14:40Z2018-12-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfDella Picca, F., Gutiérrez, M. V., Bragas, A. V., & Scarpettini, A. F. (2018). Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations. The Journal of Physical Chemistry C, 122(51), 29598–29606. doi:10.1021/acs.jpcc.8b09458http://hdl.handle.net/20.500.12272/375810.1021/acs.jpcc.8b09458enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/El autorAtribución (by)Attribution-NonCommercial-NoDerivatives 4.0 Internacionalreponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2025-09-29T14:29:28Zoai:ria.utn.edu.ar:20.500.12272/3758instacron: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:a2025-09-29 14:29:28.657Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations
title Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations
spellingShingle Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations
Scarpettini, Alberto
UTN
FRD
gold nanoparticles
photothermal reshaping
title_short Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations
title_full Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations
title_fullStr Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations
title_full_unstemmed Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations
title_sort Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations
dc.creator.none.fl_str_mv Scarpettini, Alberto
Della Picca, Fabricio
Gutierrez, Marina
Bragas, Andrea
author Scarpettini, Alberto
author_facet Scarpettini, Alberto
Della Picca, Fabricio
Gutierrez, Marina
Bragas, Andrea
author_role author
author2 Della Picca, Fabricio
Gutierrez, Marina
Bragas, Andrea
author2_role author
author
author
dc.subject.none.fl_str_mv UTN
FRD
gold nanoparticles
photothermal reshaping
topic UTN
FRD
gold nanoparticles
photothermal reshaping
dc.description.none.fl_txt_mv Light absorption in gold nanoparticles leads to metal heating that induces photothermal reshaping because of atomic surface diffusion at temperatures well below the gold melting point. In this work, we perform time-resolved experiments to measure the frequencies of the extensional coherent mechanical mode in single gold nanorods, as a monitor of the changes in their aspect ratio produced by this photoinduced reshaping. We show that photothermal reshaping always occurs in typical pump–probe experiments conducted in air even at low-excitation light irradiance and usually long measuring times. The reshaping effect can be reduced by a polymer coating, which allows faster heat dissipation from the nanoparticle to the environment.
Fil: Universidad Tecnológica Nacional. Facultad Regional Delta
Peer Reviewed
description Light absorption in gold nanoparticles leads to metal heating that induces photothermal reshaping because of atomic surface diffusion at temperatures well below the gold melting point. In this work, we perform time-resolved experiments to measure the frequencies of the extensional coherent mechanical mode in single gold nanorods, as a monitor of the changes in their aspect ratio produced by this photoinduced reshaping. We show that photothermal reshaping always occurs in typical pump–probe experiments conducted in air even at low-excitation light irradiance and usually long measuring times. The reshaping effect can be reduced by a polymer coating, which allows faster heat dissipation from the nanoparticle to the environment.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-03
2019-06-28T19:14:40Z
2019-06-28T19:14:40Z
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 Della Picca, F., Gutiérrez, M. V., Bragas, A. V., & Scarpettini, A. F. (2018). Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations. The Journal of Physical Chemistry C, 122(51), 29598–29606. doi:10.1021/acs.jpcc.8b09458
http://hdl.handle.net/20.500.12272/3758
10.1021/acs.jpcc.8b09458
identifier_str_mv Della Picca, F., Gutiérrez, M. V., Bragas, A. V., & Scarpettini, A. F. (2018). Monitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillations. The Journal of Physical Chemistry C, 122(51), 29598–29606. doi:10.1021/acs.jpcc.8b09458
10.1021/acs.jpcc.8b09458
url http://hdl.handle.net/20.500.12272/3758
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
El autor
Atribución (by)
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
El autor
Atribución (by)
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.source.none.fl_str_mv 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_ 1844621786988150784
score 12.559606

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