Dresden 2020 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 83: Poster Session - Plasmonics and Nanooptics: Light-Matter Interaction, Spectroscopy
O 83.8: Poster
Mittwoch, 18. März 2020, 18:15–20:00, P2/EG
Massive parallel heterogeneous assembly of single-crystalline Ag and Au spheres — •Daniel Schletz1, Johannes Schultz2, Martin Mayer1, Anja Maria Steiner1, Axel Lubk2, Tobias König1, and Andreas Fery3 — 1Leibniz-Institut für Polymerforschung Dresden e.V., Germany — 2Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, Germany — 3Department of Physical Chemistry of Polymeric Materials TU Dresden, Germany
In pursuit of new optical properties, different materials and particle morphologies have been investigated in detail. Combining multiple of these building block types promises novel properties with respect to the single use thereof. Due to the nature of combinatorics, introducing more than a single building block leads to an exponential increase in parameter space, unable to be explored by established linearly scaling fabrication methods.
In an innovative approach, heterogeneous single particle lines of single-crystalline Ag and Au spheres are manufactured in a massive parallel approach by stochastic confinement assembly. By assembling billions of particles in one step, millions of combinations are generated. These ensembles are then studied in detail by electron energy loss spectroscopy (EELS) to reveal their plasmonic properties and to gain insight into heterogeneous coupling efficiencies.