Laboratoire Charles Coulomb UMR 5221 CNRS/UM2 (L2C)


Accueil > La Recherche > Axes & Equipes > Matière Molle & Verres > Equipe : Physique des Verres > Thème : Nanophysique des surfaces des verres

Wetting properties of glass surfaces

par Sébastien LAYSSAC - publié le

Involved researchers : M. Ciccotti, M. George, M. Flemming, A. Grimaldi, G. Pallarès

(Collaboration E. Charlaix – LPMCN, UCB Lyon 1)

Phase imaging and innovative higher order harmonics investigations are being used to provide a map of the local energy dissipation caused by the tip-sample interaction during the cantilever oscillation. For very stiff substrates such as glass or silicon, the bulk dissipation will be negligible and phase imaging will mostly be sensitive to adhesion and in particular to the formation and rupture of capillary bridges between the tip and the sample at each oscillation. Nanoscale capillary force measurements as well as AFM phase imaging techniques are being further developed in order to characterize local wetting properties, as well as the physical and chemical evolution of wetting surface films.

Phase image around a capillary condensate at the crack tip revealing interesting bi-stability behaviors - © L2C