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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 14: Poster Session II - Complex Fluids and Perovskites

CPP 14.15: Poster

Tuesday, March 23, 2021, 16:30–18:30, CPPp

Investigation of polymer templated Silicon-Germanium hybrid materials — •Christian L. Weindl1, Christian Fajman2, Michael A. Giebel2, Matthias Schwarzkopf3, Stephan V. Roth3, 4, Thomas F. Fässler2, and Peter Müller-Buschbaum1,51Technische Universität München, PhysikDepartment, Lehrstuhl für Funktionelle Materialien, James-FranckStraße 1, 85748 Garching, Germany — 2Technische Universität München, Chemie-Department, Lehrstuhl für anorganische Chemie mit Schwerpunkt Neue Materialien, Lichtenbergstr. 4, 85748 Garching, Germany — 3Deutsches Elektronen-Synchrotron DESY, Noetkestraße 85, 22607 Hamburg, Germany — 4Royal Institute of Technology KTH, Teknikringen 34-35, 10044 Stockholm, Sweden — 5Heinz Maier-Leibniz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany

The latest research has revealed promising results for Silicon (Si) and Germanium (Ge) as anode materials for lithium-ion batteries. Owing to their high energy capacity these two semiconductors are considered auspicious alternatives to graphite anodes. In this study, we set the goal of synthesizing a porous silicon-germanium structure over a wet chemical sol-gel approach. Here, diblock copolymer polystyrene-block-polyethylene oxide is used as the structuring agent. Real-space data as SEM and microscopy images will be discussed with reciprocal-space analysis methods as grazing-incidence x-ray scattering in small and wide-angle mode.

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