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Ultrafast Acoustic Vibrations of Bimetallic Nanoparticles

hal.structure.identifierInstitut Lumière Matière [Villeurbanne] [ILM]
dc.contributor.authorSTOLL, Tatjana
hal.structure.identifierInstitut Lumière Matière [Villeurbanne] [ILM]
dc.contributor.authorMAIOLI, Paolo
hal.structure.identifierInstitut Lumière Matière [Villeurbanne] [ILM]
dc.contributor.authorCRUT, Aurélien
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBURGIN, Julien
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorLANGOT, Pierre
hal.structure.identifierInstitut Lumière Matière [Villeurbanne] [ILM]
dc.contributor.authorPELLARIN, Michel
hal.structure.identifierBionanoplasmonics Laboratory
dc.contributor.authorSÁNCHEZ-IGLESIAS, Ana
hal.structure.identifierDepartamento de Quimica Fisica
dc.contributor.authorRODRÍGUEZ-GONZÁLEZ, Benito
hal.structure.identifierBionanoplasmonics Laboratory
hal.structure.identifierDepartamento de Quimica Fisica
hal.structure.identifierIkerbasque - Basque Foundation for Science
dc.contributor.authorLIZ-MARZÁN, Luis M.
hal.structure.identifierInstitut Lumière Matière [Villeurbanne] [ILM]
dc.contributor.authorDEL FATTI, Natalia
hal.structure.identifierInstitut Lumière Matière [Villeurbanne] [ILM]
dc.contributor.authorVALLÉE, Fabrice
dc.date.created2014-11-05
dc.date.issued2015
dc.identifier.issn1932-7447
dc.description.abstractEnInvestigations of the ultrafast acoustic response of metal nanosystems yield important information on the validity of continuous elastic mechanics at the nanoscale and also provide an optical way to probe nanoobject morphologies. In this context, we used femtosecond time-resolved pump-probe spectroscopy to study two classes of bimetallic nanoparticles: chemically synthesized AuAg nanospheres in water in the 20-45 nm size range, both with alloyed and segregated core-shell morphologies, and mass-selected glass-embedded PtAu core-shell nanospheres in the very small size range (2.3-2.5 nm), synthesized by physical methods. The analysis of the corresponding breathing mode periods demonstrates validity of the predictions of the continuous elastic model for bimetallic nanoobjects with the investigated sizes, morphologies and composition. Moreover, discrimination of nanoparticles internal structure (alloy or core-shell) by measurement of their acoustic response is also demonstrated.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.rights.urihttp://creativecommons.org/licenses/by-sa/
dc.title.enUltrafast Acoustic Vibrations of Bimetallic Nanoparticles
dc.typeArticle de revue
dc.identifier.doi10.1021/jp511070h
dc.subject.halPhysique [physics]/Mécanique [physics]
bordeaux.journalJournal of Physical Chemistry C
bordeaux.page1591-1599
bordeaux.volume119
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-01115164
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01115164v1
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