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Dresden 2020 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 97: Nanostructures, Nanostructuring and Nanosized Soft Matter

CPP 97.4: Vortrag

Donnerstag, 19. März 2020, 16:00–16:15, ZEU 255

Sputter deposition of Ag on nanostructured PMMA-b-P3HT copolymer thin films — •Marc Gensch1,2, Matthias Schwartzkopf1, Simon J. Schaper2, Lucas P. Kreuzer2, Nian Li2, Jonas Drewes3, Oleksandr Polonskyi3, Thomas Strunskus3, Franz Faupel3, Peter Müller-Buschbaum2,4, and Stephan V. Roth1,51DESY, Photon Science, Notkestr. 85, D-22607 Hamburg, Germany — 2TUM, Physik-Department, LS Funktionelle Materialien, James-Franck-Str. 1, D-85748 Garching, Germany — 3MaWi, Christian Albrechts-Universität zu Kiel, Kaiserstr.2, D-24143 Kiel, Germany — 4Heinz Maier-Leibniz Zentrum (MLZ), TUM, Lichtenbergstraße 1, D-85748 Garching, Germany — 5KTH, Teknikringen 56-58, SE-100 44 Stockholm

Nanostructured polymer-metal-composite films demonstrate great perspectives for optoelectronic applications, e.g. as sensors or photovoltaics. To enhance properties of such devices the metal cluster self-assembly process needs to be understood. We studied the silver cluster morphology during the growth on PMMA-b-P3HT by grazing incidence small-angle X-ray scattering (GISAXS), as well as the crystallinity of the metal film formation with grazing incidence wide-angle X-ray scattering (GIWAXS) in situ during sputter deposition. The scattering experiments were combined with surface differential reflectance spectroscopy (SDRS). Our study reveals the selective wetting of silver on the polymer blocks and the influence of the template on the percolation behavior of the silver layer, which was measured by resistivity measurements during the sputter deposition.

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