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Synthèse et propriétés de monocristaux, de poudres, films minces ou hétérostructures

Etudes à l'interface avec la matière biologique

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LMGP seminar - Valentina CANTELLI

Publié le 31 octobre 2012
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Conférence du 14 novembre 2012 au 15 novembre 2012
at 14h00 - Conference room, 2nd floor LMGP
LMGP / Grenoble INP Minatec
3 parvis Louis Néel - Grenoble

Valentina CANTELLI,
Post-doc at LMGP supported by the Nanosciences Foundation


In situ synchrotron X-ray studies of growing Si nanowires :
new setup and first results

Abstract

This study concerns the in-situ investigation of Si nanowires (NWs) by Grazing Incidence X-ray Diffraction (GIXD) on Si(111) and Ge(111). Si NWs show a perfect epitaxial relationship with the substrate and no difference in lattice parameters. The evolution of size and shape as well as the formation of stacking faults with respect to the different growth conditions was also monitored. Au catalyst crystallization was investigated differentiating between the top NW contribution and the substrate. GIXD studies of the heteroepitaxial growth of Si nanostructures on Ge(111) revealed the initial formation of strained silicon, followed by the growth of relaxed Si.

More infos on Valentina Cantelli

3 mars 2010  PhD graduated.
Thesis on "Structural characterization of magnetron sputtered FePt thin films & nanostructures" at Helmholtz-Zentrum Dresden-Rossendorf (Dresden - Germany ) & on the Rossendorf Beamline at the European Synchrotron Radiation Facility (BM20-ROBL at ESRF).


2010-2012 : Nanosciences Foundation Post-Doc.

She has been responsible for the low pressure CVD expriment at IF-BM32 ESRF on the "In-Situ growth of Nanostructure" Ultra High Vacuum (UHV) chamber with Gilles Renaud (CEA-INAC).

 

 


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mise à jour le 26 août 2013

  • Tutelle CNRS
  • Tutelle Grenoble INP
Univ. Grenoble Alpes