Berlin 2012 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 2: Nanoparticles and Composite Materials
CPP 2.1: Vortrag
Montag, 26. März 2012, 09:30–09:45, C 243
Fabrication of metamaterials by colloidal mask templating and glancing angle deposition: An in situ grazing incidence X-ray scattering study — •Jan Perlich1, Adeline Buffet1, Matthias Schwartzkopf1, Mottakin M. Abul Kashem1, Gerd Herzog1, Kai Schlage1, Ezzeldin Metwalli2, Volker Körstgens2, Ralf Röhlsberger1, Peter Müller-Buschbaum2, Stephan V. Roth1, and Rainer Gehrke1 — 1HASYLAB-DESY, Hamburg (Germany) — 2TU München, Physik Department, LS Funkt. Mat., Garching (Germany)
Metamaterials are artificially structured materials which attain their properties from the unit structure rather than the constituent materials using small inhomogeneities. Metamaterials have become a new subdiscipline in physics and their widespread areas of application include optics and optoelectronics, electromagnetics, microwave and antenna engineering, semiconductors, etc. We present the fabrication of such a metamaterial by sputter deposition of gold on colloidal polystyrene nanoparticles acting as shadowing mask. The gold is deposited under a glancing angle (GLAD) resulting in asymmetrically shaped gold-capped polystyrene nanospheres. The sputtering process is monitored in situ real-time by grazing incidence small angle X-ray scattering (GISAXS) performed at the synchrotron beamline P03 of PETRA III enabling millisecond time resolution. The characterization is complemented by scanning electron microscopy, yielding high-resolution images of the final morphology, and ellipsometry to determine the optical properties of the nanostructured material.