Periodic Electric Field Enhancement Along Gold Rods with Nanogaps

A periodic dependence on the Au segment length is observed for the electric field at the nanogap of long‐segment Au nanostructures. An optimized geometry of these platforms leads to an intense surface‐enhanced Raman scattering (SERS) signal at the nanogap (see picture). Information about molecular t...

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Bibliographic Details
Published in:Angewandte Chemie (International ed.) 2010-01, Vol.49 (1), p.78-82
Main Authors: Pedano, María L, Li, Shuzhou, Schatz, George C, Mirkin, Chad A
Format: Article
Language:English
Subjects:
gold
nanostructures
on-wire lithography
surface plasmon resonance
surface-enhanced Raman scattering
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Summary:A periodic dependence on the Au segment length is observed for the electric field at the nanogap of long‐segment Au nanostructures. An optimized geometry of these platforms leads to an intense surface‐enhanced Raman scattering (SERS) signal at the nanogap (see picture). Information about molecular transport and vibrational spectra may therefore be simultaneously obtained.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200904646