Fig. 1: Spatially periodic dielectrophoretic stress generated by an interdigital electrode substrate. | Nature Communications

Fig. 1: Spatially periodic dielectrophoretic stress generated by an interdigital electrode substrate.

From: Mediation of lubricated air films using spatially periodic dielectrophoretic effect

Fig. 1

a Schematic of the stress σe caused by an electric field E at the interface of two media, liquid and air, with different dielectric constants. b Schematic of electrodes fabricated on a substrate to create a spatially periodic electric field. c Simulated dielectrophoretic stress magnitude σe vs. x for a liquid–air interface at different distances H from the substrate and U = 200 V. For H 10 μm, σe peaks directly above the electrodes’ edges. d Simulated maximum dielectrophoretic stress magnitude \(\max (| {{\boldsymbol{\sigma }}}_{{\rm{e}}}| )\) vs. H for several values of U. e A thin air film between a liquid surface and a solid surface ruptures where the dielectrophoretic stress eventually becomes strongest, i.e., directly above the electrodes’ edges.

Back to article page