Title
Control of surface plasmon localization via self-assembly of silver nanoparticles along silver nanowiresControl of surface plasmon localization via self-assembly of silver nanoparticles along silver nanowires
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Electron microscopy for materials research (EMAT)
Publication type
article
Publication
Washington, D.C.,
Subject
Physics
Chemistry
Source (journal)
Journal of the American Chemical Society. - Washington, D.C.
Volume/pages
130(2008):51, p. 17240-17241
ISSN
0002-7863
ISI
000263320600018
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A simple and low-cost method to create metal−metal hybrid nanostructures possessing fairly regularly spaced hot-spots of surface plasmon resonances is proposed. The nanohybrid structure was prepared via self-assembly during a simple drop-casting procedure, using chemically synthesized silver nanowires and silver nanoparticles prepared in a single batch of a polyol process. Wide field illumination of these nanohybrids produced hot-spots with spacings of around 500 nm to 1 ìm. The intensity of the emission/scattering from the hot-spots fluctuates over time. The proposed structure can be useful for the development of molecular-sensors or as a substrate for surface enhanced Raman/fluorescence spectroscopy.
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