Title
Surface enhanced Raman scattering of silver sensitized cobalt nanoparticles in metaldielectric nanocomposites Surface enhanced Raman scattering of silver sensitized cobalt nanoparticles in metaldielectric nanocomposites
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol ,
Subject
Physics
Source (journal)
Nanotechnology. - Bristol
Volume/pages
19(2008) :37 , p. 375701,1-375701,4
ISSN
0957-4484
ISI
000258385600018
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We report the preparation of a new type of nanocomposite containing cobalt and silver nanoparticles organized in parallel layers with a well controlled separation. This arrangement allows the observation of an enhanced low-frequency Raman signal at the vibration frequency of cobalt nanoparticles excited through the surface plasmons of silver nanoparticles. Numerical simulations of the electric field confirm the emergence of hot spots when the separation between silver and cobalt nanoparticles is small enough.
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