Spectro-Microscopy

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
prieto@fhi-berlin.mpg.de	caldas@fhi-berlin.mpg.de
Dr. Liviu Tănase	Stephan Pohl
tanase@fhi-berlin.mpg.de	pohl@fhi-berlin.mpg.de
Dr. Aarti Tiwari	Marcel Springer
tiwari@fhi-berlin.mpg.de	springer@fhi-berlin.mpg.de

Recent Publications

Mathias Homann, Bernhard von Boehn, Mauricio Prieto, Daniel M. Gottlob, Liviu Cristian Tanase, Thomas Schmidt, Francesca Genuzio, Tevfik O. Menteş, Andrea Locatelli, and Ronald Imbihl, "Coupling of morphological instability and kinetic instability: Chemical waves in hydrogen oxidation on a bimetallic Ni/Rh(111) surface," Physical Review Materials 5 (4), 045002 (2021).

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Håkon I. Røst, Rajesh Kumar Chellappan, Frode S. Strand, Antonija Grubišić-Čabo, Benjamin P. Reed, Mauricio Prieto, Liviu Cristian Tanase, Lucas de Souza Caldas, Thipusa Wongpinij, Chanan Euaruksakul, Thomas Schmidt, Anton Tadich, Bruce C. C. Cowie, Zheshen Li, Simon P. Cooil, and Justin W. Wells, "Low-Temperature Growth of Graphene on a Semiconductor," The Journal of Physical Chemistry C 125 (7), 4243-4252 (2021).

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Adrian Lewandowski, Sergio Tosoni, Leonard Gura, Zechao Yang, Alexander Fuhrich, Mauricio Prieto, Thomas Schmidt, Denis Usvyat, Wolf-Dieter Schneider, Markus Heyde, Gianfranco Pacchioni, and Hans-Joachim Freund, "Growth and Atomic‐Scale Characterization of Ultrathin Silica and Germania Films: The Crucial Role of the Metal Support," Chemistry – A European Journal (2020).

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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).

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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).

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