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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 9: Nanoparticles, Nanocrystals and Composites II
CPP 9.2: Talk
Monday, March 7, 2016, 15:15–15:30, H41
In-situ investigation of aluminum thin film growth on a nanostructured diblock copolymer substrate — •Björn Beyersdorff1, Matthias Schwartzkopf1, Deniza Chekrygina2, Valentia Cantelli3, Ezzeldin Metwalli4, Senlin Xia4, Carsten Baehtz1,3, Peter Müller-Buschbaum4, and Stephan V. Roth1 — 1DESY, Hamburg — 2Universität Hamburg — 3Helmholtz-Zentrum Dresden-Rossendorf — 4Technische Universität München
Targeted installation of nanostructured metal films for application devices is of utmost importance in many areas of modern science and technology. Aluminum (Al) nanostructures for instance are very promising for surface-enhanced Raman Scattering (SERS) due to their wide tuneability of the plasmon resonance from the deep UV to the infrared region [1].
When depositing metal on a nanostructured diblock copolymer substrate, a different adatom mobility on the two polymer blocks often leads to selective wetting and thus to nanostructure formation [2,3]. We investigated the sputter deposition of Al on a PS-b-PMMA diblock copolymer thin film by means of grazing incidence small-angle X-ray scattering (GISAXS). The resulting GISAXS pattern yield information on the different growth regimes during nanostructural evolution as well as on the modification of the diblock copolymer substrate due to the Aluminum deposition. [1] Gérard et al, J. Phys. D: Appl. Phys., 48, 184001 (2015), [2] Lopes et al, Nature 414, 735 (2001), [3] Roth et al, ACS Appl. Mater. Interfaces 7 (23), 12470 (2015)