Dresden 2006 – wissenschaftliches Programm
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CPP: Chemische Physik und Polymerphysik
CPP 17: Thin Films and Surfaces II
CPP 17.3: Vortrag
Mittwoch, 29. März 2006, 16:15–16:30, ZEU Lich
A combinatorial study on gradient noble metal / polymer blend multilayers — •Stephan V. Roth1, Harald Walter2, Ralph Domnick3, Christian Schroer1, Marion Kuhlmann1, Rainer Gehrke1, and Peter Müller-Buschbaum4 — 1HASYLAB at DESY, Notkestr. 85, D-22603 Hamburg — 2CSEM SA, Badenerstrasse 569, CH-8048 Zürich, Switzerland — 3identif GmbH, Ulrich-Schalk-Str. 3 D-91056 Erlangen — 4TU München Physik Department LS E13, James-Franck-Str. 1, D-85748 Garching
Nanostructuring of thin noble metal films is of utmost importance for many technological and biophysical areas, e.g. anti-counterfeiting and DNA scanning [1]. Usually a multilayer geometry is chosen consisting of noble metal layer / polymer / substrate. The optical properties of such multilayer systems depend crucially on the structure and morphology of the noble metal layer. It is determined by key parameters like deposition method or noble metal-polymer interaction affecting the self-assembly of the metal atoms. We advanced two-fold: Firstly, as polymer layer we chose a blend of deuterated polystyrene (dPS) and polyisoprene (PI). Secondly we installed a gradient in mass thickness of the noble metal layer during evaporation. To obtain information for combinatorial libraries microbeam grazing incidence small-angle x-ray scattering (µGISAXS) allowing to scan such gradients is excellently suited [2]. We present a combinatorial study on a gold and copper gradient multilayers.
[1] G. Bauer et al., Nanotechnology 14, 1289 (2003)
[2] S.V. Roth et al., Appl. Phys. Lett. 82, 1935 (2003)