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

dc.creatorScarpettini, Alberto
dc.creatorDella Picca, Fabricio
dc.creatorGutierrez, Marina
dc.creatorBragas, Andrea
dc.date.accessioned2019-06-28T19:14:40Z
dc.date.available2019-06-28T19:14:40Z
dc.date.issued2018-12-03
dc.description.abstractLight 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.es_ES
dc.description.affiliationFil: Universidad Tecnológica Nacional. Facultad Regional Deltaes_ES
dc.description.peerreviewedPeer Reviewedes_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationDella 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.8b09458es_ES
dc.identifier.doi10.1021/acs.jpcc.8b09458
dc.identifier.urihttp://hdl.handle.net/20.500.12272/3758
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.holderEl autores_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.rights.useAtribución (by)es_ES
dc.rights.useAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.subjectUTNes_ES
dc.subjectFRDes_ES
dc.subjectgold nanoparticleses_ES
dc.subjectphotothermal reshapinges_ES
dc.titleMonitoring the Photothermal Reshaping of Individual Plasmonic Nanorods with Coherent Mechanical Oscillationses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.type.snrdinfo:ar-repo/semantics/artículoes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES

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