Patterned Diblock Co-Polymer Thin Films as Templates for Advanced Anisotropic Metal Nanostructures
ACS Applied Materials & Interfaces2015Vol. 7(23), pp. 12470–12477
Citations Over TimeTop 10% of 2015 papers
Stephan V. Roth, Gonzalo Santoro, Johannes F. H. Risch, Shun Yu, Matthias Schwartzkopf, Torsten Boese, Ralph Döhrmann, Peng Zhang, Bastian Besner, Philipp Bremer, Dieter Rukser, Michael Rübhausen, Nicholas J. Terrill, Paul A. Staniec, Yuan Yao, Ezzeldin Metwalli, Peter Müller‐Buschbaum
Abstract
We demonstrate glancing-angle deposition of gold on a nanostructured diblock copolymer, namely polystyrene-block-poly(methyl methacrylate) thin film. Exploiting the selective wetting of gold on the polystyrene block, we are able to fabricate directional hierarchical structures. We prove the asymmetric growth of the gold nanoparticles and are able to extract the different growth laws by in situ scattering methods. The optical anisotropy of these hierarchical hybrid materials is further probed by angular resolved spectroscopic methods. This approach enables us to tailor functional hierarchical layers in nanodevices, such as nanoantennae arrays, organic photovoltaics, and sensor electronics.
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