SKM 2023 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 17: Poster Session I

CPP 17.56: Poster

Monday, March 27, 2023, 18:00–20:00, P3

Exploring the deposition conditions for formation of larger homogeneous colloidal arrays — •Joanne Neumann, Jan Rubeck, Andrei Chumakov, and Matthias Schwartzkopf — DESY, Photon Science, Notkestr. 85, D-22607 Hamburg

Installing regular arrays on mesoscopic length scales plays an important role in nanotechnology to create uniform templates for sputter deposition or plasma treatments. Different techniques of self-assembly via solvent evaporation out of dispersions have been used to obtain highly ordered colloidal structures. We used spin-coating, Langmuir-Blodgett (LB) technique and spray-deposition, representing the most attractive tools for the formation of larger homogeneous colloidal arrays on plain substrates. Due to their different deposition and boundary conditions, the assembly behaviour of polystyrene nanoparticles varies, resulting in two-dimensional layers with LB-technique and a large variety of pattern by spray deposition. We present our first results from atomic force microscopy and microbeam grazing incidence small-angle x-ray scattering (GISAXS).