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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 37: Poster: Colloids and Complex Liquids

CPP 37.5: Poster

Mittwoch, 24. März 2010, 17:30–19:00, Poster B2

2D versus wire-like structures: exploring the deposition conditions for self-assembling polystyrene nanoparticles — •Matthias Schwartzkopf¹, Mottakin Abul Kashem¹, Adeline Buffet¹, Gerd Herzog¹, Volker Körstgens², Peter Müller-Buschbaum², Jan Perlich¹, Stephan V. Roth¹, Stephan Förster³, and Rainer Gehrke¹ — ¹HASYLAB at DESY, Notkestr. 85, D-22603 Hamburg, Germany — ²Physik-Department E13, TU München, James-Franck-Str. 1, D-85748 Garching, Germany — ³Universität Hamburg, Institut für Physikalische Chemie, Grindelallee 117, D-20146 Hamburg, Germany

Installing regular arrays on mesoscopic length scales plays an important role in nanoscience. Different techniques of self-assembly via solvent evaporation have been used to obtain highly ordered colloidal structures. We used Langmuir-Blodgett (LB) technique and spray deposition, representing the most attractive tools for the formation of larger homogeneous colloidal arrays. During their different deposition and boundary conditions, the assembly behaviour of polystyrene nanoparticles changes, resulting in two-dimensional layers with LB-technique and stripe-like pattern by spray deposition. We present our first results from atomic force microscopy and microbeam grazing incidence small-angle x-ray scattering.