Dresden 2011 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 47: Heterogeneous Nucleation and Microstructure Formation (related to SYMF, jointly with MM)
CPP 47.1: Vortrag
Freitag, 18. März 2011, 10:30–10:45, ZEU 160
Nanoparticle solution casting kinetics on colloidal templates - an in-situ microbeam GISAXS and ellipsometry study — •Stephan V. Roth1, Adeline Buffet1, Mottakin Abul Kashem1, Gunthard Benecke1,2, Rainer Gehrke1, Gerd Herzog1, Volker Koerstgens3, Jan Perlich1, Monika Rawolle3, Andre Rothkirch1, Matthias Schwartzkopf1, and Peter Mueller-Buschbaum3 — 1Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, D-22607 Hamburg, Germany — 2MPIKG Golm, Abt. Biomat., Wissenschaftspark Potsdam-Golm, D-14424 Potsdam, Germany — 3TU München, Physik Department, LS Funkt. Mat., James-Franck-Str. 1, 85748 Garching, Germany
Nanoparticle solution casting is a very efficient process to produce large scale nanostructured layers [1] which are applied in optical or sensor technology [2]. We investigated the self-assembly process of gold nanoparticles during solution casting on a colloidal polymeric template. The template was installed by spin-coating and further nanostructured by toluene treatment prior to solution casting. In order to follow the different stages of self-assembly during evaporation of the solvent, we combined imaging ellipsometry [3] and microbeam grazing incidence small-angle x-ray scattering (µGISAXS) at the beamline MiNaXS (P03) of DESY, Hamburg. Thereby we are able to image the structure formation of the gold nanoparticle layer and its influence on the colloidal template. [1] Roth et al., Appl. Phys. Lett. 91, 091915 (2007)& Langmuir, 26, 1496 (2010) [2] Xia et al., Adv. Mat. 12, 693 (2000) [3] Koerstgens et al., Anal. Bioanal. Chem. 396, 139 (2010)