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Damping of Acoustic Vibrations of Immobilized Single Gold Nanorods in Different Environments

Yu, Kuai and Zijlstra, Peter and Sader, John E. and Xu, Qing-Hua and Orrit, Michel (2013) Damping of Acoustic Vibrations of Immobilized Single Gold Nanorods in Different Environments. Nano Letters, 13 (6). pp. 2710-2716. ISSN 1530-6984. doi:10.1021/nl400876w. https://resolver.caltech.edu/CaltechAUTHORS:20130813-095404253

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Abstract

We present measurements of the acoustic vibrations of single gold nanorods deposited on a glass substrate immersed in air and water by ultrafast pump–probe spectroscopy. The nanorods display two vibration modes, the breathing mode and the extensional mode. The damping time of the two modes is influenced by the environment, and a reduction of the quality factor is observed when the particles are immersed in water. The reduced quality factor of the breathing mode is in good agreement with a model that takes into account viscous damping and radiation of sound waves into the medium. The extension mode, however, is heavily damped when the particles are immersed in water, which is attributed to hydrodynamic lubrication forces between the nanoparticle and the glass substrate. Our results identify a new mode of damping in supported nanoparticles and indicate that the immersion medium can have different effects on different modes of vibration.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/nl400876w DOIArticle
http://pubs.acs.org/doi/abs/10.1021/nl400876wPublisherArticle
ORCID:
AuthorORCID
Sader, John E.0000-0002-7096-0627
Additional Information:© 2013 American Chemical Society. Received: March 8, 2013; Revised: April 25, 2013; Published: May 2, 2013. K.Y. and Q.H.X. acknowledge the financial support from the Faculty of Science, National University of Singapore (R-143- 000-341-112). P.Z. acknowledges financial support from The Netherlands Organisation for Scientific Research (Veni fellowship). J.E.S. acknowledges support from the Australian Research Council grants scheme. M.O. acknowledges support by ERC (Advanced Grant SiMoSoMa) and by the Dutch Organisations for Scientific Research (NWO and FOM).
Funders:
Funding AgencyGrant Number
National University of Singapore Faculty of ScienceR-143-000-341-112
Netherlands Organisation for Scientific Research (NWO) Veni FellowshipUNSPECIFIED
Australian Research Council (ARC) Grants SchemeUNSPECIFIED
European Research Council (ERC) Advanced Grant SiMoSoMaUNSPECIFIED
Dutch Organisation for Scientific Research (NWO)UNSPECIFIED
Dutch Organisation for Scientific Research (FOM)UNSPECIFIED
Subject Keywords:Gold nanoparticles; acoustic oscillations; damping; water film; lubrication
Issue or Number:6
DOI:10.1021/nl400876w
Record Number:CaltechAUTHORS:20130813-095404253
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130813-095404253
Official Citation:Damping of Acoustic Vibrations of Immobilized Single Gold Nanorods in Different Environments Kuai Yu, Peter Zijlstra, John E. Sader, Qing-Hua Xu, and Michel Orrit Nano Letters 2013 13 (6), 2710-2716
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39889
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:19 Aug 2013 18:21
Last Modified:09 Nov 2021 23:47

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