Our investigations focus on the preparation and modification of thin oxide films on metal supports and metal nanoparticles on oxides and on the structural, electronic and chemical properties of these systems for thermal catalysis.

The experiments are performed with the high resolution spectro-microscope SMART (Spectro-Microscope with Aberration Correction for many relevant Techniques) operating at the BESSY II electron storage ring. This aberration corrected and energy filtered Low Energy Electron Microscope (LEEM) / Photo-Emission Electron Microscope (PEEM) combines microscopy, spectroscopy and diffraction of photo-emitted and reflected electrons. It allows for real-time observations of surface processes like oxidation, structure formation or chemical reactions.

Group Members

Dr. Mauricio Prieto

Lucas de Souza Caldas

Dr. Liviu Tănase

Stephan Pohl

Marcel Springer

Spectro-Microscopy Research Group

Recent Publications

Hagen Klemm, Mauricio Prieto, Feng Xiong, Ghada B. Hassine, Markus Heyde, Dietrich Menzel, Marek Sierka, Thomas Schmidt, and Hans-Joachim Freund, "A Silica Bilayer Supported on Ru(0001): Following the Crystalline-to Vitreous Transformation in Real Time with Spectro‐microscopy," Angewandte Chemie International Edition 59 (26), 10587-10593 (2020).
Francesco Silvestri, Mauricio Prieto, Adara Babuji, Liviu Cristian Tanase, Lucas de Souza Caldas, Olga Solomeshch, Thomas Schmidt, Carmen Ocal, and Esther Barrena, "Impact of Nanomorphology on Surface Doping of Organic Semiconductors: The Pentacene-C60F48 Interface," ACS Applied Materials and Interfaces 12 (22), 25444-25452 (2020).
Kevin Schweinar, Sebastian Beeg, Caroline Hartwig, Catherine R. Rajamathi, Olga Kasian, Simone Piccinin, Mauricio Prieto, Liviu Cristian Tanase, Daniel M. Gottlob, Thomas Schmidt, Dierk Raabe, Robert Schlögl, Baptiste Gault, Travis Jones, and Mark T. Greiner, "Formation a 2D meta-stable oxide by differential oxidation of AgCu alloys," ACS Applied Materials and Interfaces 12 (20), 23595-23695 (2020).

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