Berlin 2015 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 22: Interfaces and Thin Films III (joint session with CPP)
DS 22.1: Vortrag
Mittwoch, 18. März 2015, 09:30–09:45, C 243
Patterned Diblock co-polymer Thin Films as Templates for Advanced Anisotropic Metal Nanostructures — •Stephan V. Roth1, Gonzalo Santoro1, Johannes F.H. Risch1, Shun Yu2, Matthias Schwartzkopf1, Peng Zhang1, Sarathlal Koyiloth Vayalil1, Michael A. Rübhausen3, Nick J. Terrill4, Paul Staniec4, Yuan Yao5, Ezzeldin Metwalli5, and Peter Müller-Buschbaum5 — 1DESY, Notkestr. 85, 22607 Hamburg — 2KTH, Teknikringen 56-58, 10044 Stockholm — 3Inst. f. Nanostruktur- und Festkörperforschung, CFEL, APOG, Univ. Hamburg, Luruper Chaussee 149, 22761 Hamburg — 4DLS, Harwell Sci. & Innov. Campus, Didcot, Oxfordshire OX11 0QX — 5LS funkt. Mat., Physik-Department, TU München, James-Franck-Str. 1, 85748 Garching
The tailoring of the metal-polymer interface in hybrid materials plays a crucial role in modern advanced material science. Using glancing angle deposition of gold on a nanostructured diblock copolymer thin film (PS-b-PMMA), we are able to fabricate directional hierarchical structures. This approach exploits the selective wetting of Au on the PS block. We prove the asymmetric, localized growth of the gold nanoparticles and are able to extract the different growth laws by in situ scattering methods as well as imaging methods. The optical anisotropy of these hierarchical hybrid materials is probed by angular resolved spectroscopic methods and is correlated to the nanostructure. This approach offers the possibility to tailor functional hierarchical thin films for plasmonics and metamaterials, as nanoantennae arrays, in organic photovoltaics and sensor electronics.