Dr. Václav Valeš


Dr. Václav Valeš

Post-doc, Department of Low-dimensional Systems

email: vaclav.vales@jh-inst.cas.cz
tel.: +420 266053445
room: 203

Focus

 Enhancement of Raman signal of molecules in the vicinity of graphene, modified 2D materials

 

Expertise

Raman spectroscopy, AFM, X-ray scattering

 

Background

  • 2013 - present    JHINST - Department of Low-dimensional Systems; postdoc
  • 2008 - 2013        Faculty of Mathematics and Physics, Charles University in Prague; PhD. student
  • 2003 - 2008        Faculty of Science, Masaryk University in Prague; undergraduate student

Selected publications

  1. Valeš, P. Kovaříček, M. Fridrichová, X. Ji, X. Ling, J. Kong, M. S. Dresselhaus, and M. Kalbáč, “Enhanced Raman scattering on functionalized graphene substrates,” 2D Mater. 4, 25087 (2017).
  2. Valeš, Z. Melníková, T. Verhagen, J. Vejpravová, and M. Kalbáč, “Reversibility of Graphene-Enhanced Raman Scattering with Fluorinated Graphene,” Phys. status solidi B, 1700177 (2017).
  3. Verhagen, V. Vales, O. Frank, M. Kalbac, and J. Vejpravova, “Temperature-induced strain release via rugae on the nanometer and micrometer scale in graphene monolayer,” Carbon 119, 483–491 (2017).
  4. Plšek, P. Kovaříček, V. Valeš, and M. Kalbáč, “Tuning the Reactivity of Graphene by Surface Phase Orientation,” Chem. - A Eur. J. 23, 1839–1845 (2017).
  5. Valeš, T. Verhagen, J. Vejpravová, O. Frank, and M. Kalbáč, “Addressing asymmetry of the charge and strain in a two-dimensional fullerene peapod,” Nanoscale 8, 735–740 (2016).
  6. Vejpravova, B. Pacakova, J. Endres, A. Mantlikova, T. Verhagen, V. Vales, O. Frank, and M. Kalbac, “Graphene wrinkling induced by monodisperse nanoparticles: facile control and quantification,” Sci. Rep. 5, 15061, (2015).
  7. Kominkova, V. Vales, M. C. Hersam, and M. Kalbac, “Towards quantification of the ratio of the single and double wall carbon nanotubes in their mixtures: An in situ Raman spectroelectrochemical study,” Carbon 78, 366–373 (2014).
  8. Valeš, M. Buljan, V. Janicki, S. Bernstorff, S. Mangold, Z. Siketić, O. Schneeweiss, and V. Holý, “Fe2O3/TiO2 nanoparticles—a complex structural study,” Thin Solid Films 564, 65–72 (2014).
  9. Valeš, L. Matějová, Z. Matěj, T. Brunátová, and V. Holý, “Crystallization kinetics study of cerium titanate CeTi2O6,” J. Phys. Chem. Solids 75, 265–270 (2014).

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