Dresden 2017 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 85: Thin Films, Nanostructures and Nanoparticles I
O 85.1: Vortrag
Donnerstag, 23. März 2017, 10:15–10:30, ZEU 114
Nanostructured diblock copolymers as templates for metal sputter deposition — •Marc Gensch1,2, Björn Beyersdorff1, Wiebke Ohm1, Matthias Schwartzkopf1, Calvin Brett1,2, Deniza Chekrygina2, Pallavi Pandit1, Andreas Stierle1,2, and Stephan Roth1,3 — 1DESY, Notkestr. 85, D-22607 Hamburg — 2University of Hamburg, Luruper Chaussee 149, D-22761 Hamburg — 3KTH, Teknikringen 56-58, SE-100 44 Stockholm
Nanostructured polymer metal composites demonstrate great perspective for flexible electronic and plasmonic applications [1]. Therefore, the growth kinetics and optical properties for silver deposition on co- and homopolymers were characterized by GISAXS, specular reflectance spectroscopy (UVVis), AFM and resistivity measurements. As substrates, solvent annealed PS-b-PMMA diblock copolymers of different molecular weights and their corresponding homopolymers were used. Thus, the influence of the block length and the diblock domains could be investigated. The study reveals the selective wetting of silver on one of the blocks from the copolymer thin films. The silver layers show a clear plasmon resonance. GISAXS measurements indicate a difference in the embedding of silver clusters depending on the polymer substrate. [1] S. V. Roth et al., ACS Appl. Mater. Interfaces 7, 12470 (2015).