Dresden 2011 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 36: Poster: Nanoparticles and Composite Materials
CPP 36.14: Poster
Mittwoch, 16. März 2011, 17:00–19:00, P2
Fine-Tuning of the Plasmon-Resonance of Gold Nanoparticles in Layered Geometry — •Madlen Klötzer1, Steffen Mitzscherling1, Mareike Kiel1, and Matias Bargheer1,2 — 1Institut für Physik und Astronomie, Universität Potsdam — 2Helmholtz Zentrum Berlin, Berlin
Multilayer systems containing gold nanoparticles and polyelectrolytes with a high degree of structural perfection are prepared by spin assisted layer-by-layer deposition. X-ray reflectivity and TEM measurements show well stratified layers of polyelectrolytes and gold nanoparticles.(1) The particle's packing density in-plane is verified by AFM measurement. The in-plane particle distance is varied by the adsorption time of the gold suspension and the distance between the gold layers is defined by the number of polyelectrolyte double layers. Optical spectroscopy (reflection and transmission) with polarized light reveals a tuning of the particles plasmon resonance determined by the interaction of particles.
(1) M. Kiel, S. Mitzscherling, W. Leitenberger, S. Santer, B. Tiersch, T. K. Sievers, H. Möhwald, and M. Bargheer, Langmuir 2010, 26 (23), 18499