https://doi.org/10.1140/epjd/e2010-10594-y
Regular Article
Surface plasmon resonance spectroscopy of single surfactant-stabilized gold nanoparticles
1
FemtoNanoOptics Group, LASIM, Université de Lyon,
CNRS, 43 Bd du 11
Novembre, 69622
Villeurbanne,
France
2
Physics Division, School of Technology, Aristotle University of
Thessaloniki, 54124
Thessaloniki,
Greece
a e-mail: f.vallee@lasim.univ-lyon1.fr
Received:
19
October
2010
Received in final form:
29
November
2010
Published online:
27
April
2011
The optical extinction spectra of single gold nanoparticles stabilized by surfactant molecules are investigated using the spatial modulation spectroscopy technique. The experimental results are compared to computed spectra, focussing on the width of the surface plasmon resonance. It is shown to strongly vary from particle to particle, independently of their size and dielectric environment. This demonstrates the key role of the interface conditions on the width of the surface plasmon resonance for surfactant-stabilized metal nanoparticles.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2011
