Author： Quilliet C. Berge B.
Publisher： Edp Sciences
E-ISSN： 1286-4854|60|1|99-105
ISSN： 0295-5075
Source： EPL (EUROPHYSICS LETTERS), Vol.60, Iss.1, 2010-03, pp. : 99-105
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
We study a situation where the complete wetting of a dielectricsolid by a dielectric liquid, in a conducting surrounding, isaltered by the application of an electrical potential difference.Calculations predict a dewetting transition towardspseudo-partial wetting. More generally, in a pseudo-partialwetting situation (pre-existing or electrically induced), themesoscopic film coexisting with the macroscopic droplet isexpected to be thinned by the electrostatic pressure in a waythat is directly related to its effective interface potential.This points out a possibility to tune the thickness of a fluidfilm in a nanometric regime.
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