In situ Electron Microscopy for Nanomaterial Synthesis

Contact: Jean-Christophe HARMAND, Federico PANCIERA, Gilles PATRIARCHE

Growth of Nanomaterials

A strong modeling activity supports our basic investigations on semiconductor nanowire growth : formation of axial heterostructures, statistics of nucleation events mediating the formation of each monolayer, complex nanowire growth kinetics.

These basic studies now benefit from a unique instrument installed at Ecole Polytechnique : a TEM for real-time observation of crystal growth. The C2N Materials Department is a key actor of this project called, which is a part of the . We performed the first MBE growth experiments ever reported in such an instrument

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Publications (since 2018)

Members of the group highlighted

2020

• Sardar B Alam, Christopher R Andersen, Federico Panciera, Aage AS Nilausen, Ole Hansen, Frances M Ross, Kristian Mølhave. In situ TEM modification of individual silicon nanowires and their charge transport mechanisms. Nanotechnology, 2020. Source Document
• Debra P Wilson, A S Sokolovskii, Ray R LaPierre, Federico Panciera, Frank Glas, Vladimir G Dubrovskii. Modeling the dynamics of interface morphology and crystal phase change in self-catalyzed GaAs nanowires. Nanotechnology, 2020. Source Document
• Federico Panciera, Zhaslan Baraissov, Gilles Patriarche, Vladimir G Dubrovskii, Frank Glas, Laurent Travers, Utkur Mirsaidov, Jean-Christophe Harmand. Phase selection in self-catalysed GaAs nanowires. Nano Letters, 2020. PDF Project Source Document

2019

• Zhaslan Baraissov, Antoine Pacco, Siddardha Koneti, Geeta Bisht, Federico Panciera, Frank Holsteyns, Utkur Mirsaidov. Selective Wet Etching of Silicon Germanium in Composite Vertical Nanowires. ACS applied materials & interfaces, 2019. Source Document
• Zhaslan Baraissov, Federico Panciera, Laurent Travers, Jean-Christophe Harmand, Utkur Mirsaidov. Growth Dynamics of Gallium Nanodroplets Driven by Thermally Activated Surface Diffusion. The Journal of Physical Chemistry Letters, 2019. PDF Source Document
• Éric Ngo, Federico Panciera, Jean-Christophe Harmand, Weixi Wang, Martin Foldyna, Pere Roca i Cabarrocas, Laurent Travers, Ileana Florea, Jean-Luc Maurice. Molecular Beam Epitaxy of Germanium in the Atomic-Resolution Transmission Electron Microscope. Microscopy and Microanalysis, 2019. Source Document

2018

• Federico Panciera, Jerry Tersoff, Andrew D Gamalski, Mark C Reuter, Dmitri Zakharov, Eric A Stach, Stephan Hofmann, Frances M Ross. Surface crystallization of liquid Au-Si and its impact on catalysis. Advanced Materials, 2018. PDF Video Source Document
• Jean-Christophe Harmand, Gilles Patriarche, Frank Glas, Federico Panciera, Ileana Florea, Jean-Luc Maurice, Laurent Travers, Yannick Ollivier. Atomic step flow on a nanofacet. PRL, 2018. Video Source Document