The structure of field-induced near-wall charged layers arising in weakly conducting liquids near the surface of solid dielectrics

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Abstract

The present paper investigates space charge formation that occurs near the surface of a solid dielectric in a weakly conducting liquid and takes place under the action of the strong external electric field and due to constant dissociation. The cases of 1D and a more complex 2D macro scale geometries are studied numerically using Comsol Multiphysics software. In the general case, the charge accumulates in a diffuse layer and can get in the bulk in consequence of its transport along the dielectric surface; and there is also a dissociation-recombination layer of ion deficit (same as in the electrohydrodynamic conduction pumping).
Original languageEnglish
Pages (from-to)44-50
Number of pages7
JournalJournal of Electrostatics
Volume94
DOIs
StatePublished - Aug 2018

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biotechnology
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

Keywords

  • Charge transport
  • Diffuse layer
  • Heterocharge layer
  • Low-conducting liquid
  • Solid dielectric surface
  • Strong electric field

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