Dresden 2014 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 43: Poster II: Organic thin films; Atomic layer deposition, Thin film characterization: Structure analysis and composition (XRD, TEM, XPS, SIMS, RBS, ...)
DS 43.19: Poster
Donnerstag, 3. April 2014, 16:00–19:00, P1
In-situ gold cluster growth kinetics on polystyrene thin films during sputter deposition - Influence of molecular weight — •Matthias Schwartzkopf1, Gonzalo Santoro1, Jan Perlich1, Oleksandr Polonskyi2, Alexander Hinz2, Thomas Strunskus2, Ezzeldin Metwalli3, Yuan Yao3, Franz Faupel2, Peter Müller-Buschbaum3, and Stephan V. Roth1 — 1Deutsches Elektronen-Synchrotron, Notkestr. 85, 22607 Hamburg — 2CAU Kiel, Institut für Materialwissenschaft, LS Materialverbünde, Kaiserstr.2, 24143 Kiel. — 3TU München, Physik-Department, LS Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching.
The adjustment of size-dependent catalytic, electrical and optical properties of gold cluster assemblies and to tailor their morphology with polymer templates is a very significant issue in modern applied nanotechnology. We investigate in situ the growth kinetics of gold nanostructures on polystyrene thin films with different molecular weights during RF-sputter deposition with high time resolution by means of GISAXS. The morphological parameters related to the metallic layer growth such as cluster size, correlation distance and surface coverage are deduced from a general model solely based on geometrical assumptions [1]. Our study opens up the opportunity to deduce the influence of polymer chain length on the wetting behaviour of gold films and provides a better understanding of the growth process kinetics at the polymer-metal interface during sputter deposition. [1] Schwartzkopf et al., Nanoscale 5, 5053-5062 (2013)