Dresden 2009 – wissenschaftliches Programm
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SYSO: Symposium Self-organizing Surfaces and Interfaces
SYSO 3: Self-Organizing Surfaces and Interfaces - Posters
SYSO 3.23: Poster
Mittwoch, 25. März 2009, 17:30–19:30, P3
Sputter Deposition of Aluminium on Colloidal Polymer Templates — •Rainer Gehrke1, Gerd Herzog1,2, Adeline Buffet1, Sebastien Couet1, Kai Schlage1, Gunar Kaune3, Volker Körstgens3, Robert Meier3, Ezzeldin Metwalli3, Stephan V. Roth1, Ralf Röhlsberger1, Wilfried Wurth2, and Peter Müller-Buschbaum3 — 1HASYLAB at DESY, Notkestr. 85, D-22607 Hamburg, Germany — 2Inst. f. Exp. Phys., Univ. Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany — 3TU München, Physik-Department, James-Franck-Str. 1, D-85747 Garching, Germany
This work addresses an approach to the formation of metal nanowire meshes on surfaces. Colloidal dispersions of 100 nm polystyrene spheres were spincoated on silicon. Islands of packed layers of spheres were formed which served as template for sputter deposition of aluminium. Structure formation was investigated with grazing incidence small angle X-ray scattering at beamline BW4 at HASYLAB/DESY using an in-situ sputtering chamber, thus scattering could be observed during metal deposition. The measurements indicate, that at the beginning of the deposition the metal atoms assemble in the indentations between the spheres, only after longer sputtering times the surface becomes completely covered with aluminium. If an unsputtered sample was heated beyond the glass transition temperature the lateral ordering vanished, if sputtering was stopped before complete metal coverage ordering remained upon heating. This indicates that the metal forms a stable structure separating the polymer spheres from each other.