The Dielectric Response of Water in High Electric Fields: Equilibrium Water Thickness and the Field Distribution

Abstract

Adsorption and reaction of water at metal surfaces can be strongly influenced by high surface electric fields. A numerical model, which includes a field-dependent relative permittivity, has been developed to predict the equilibrium thickness of the condensed water layer and its effect on the field distribution around a field emitter tip. Thin water layers weaken the field at the tip surface while thick layers concentrate it. When the water becomes sufficiently thick, the field at the tip surface becomes greater than the field at a clean tip surface for the same applied potential.

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Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1998
Accession Number
ADA351521

Entities

People

  • B. A. Finlayson
  • D. L. Scovell
  • E. M. Stuve
  • T. D. Pinkerton

Organizations

  • University of Washington

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Chemical Engineering
  • Computational Science
  • Computer Simulations
  • Dielectric Films
  • Dielectric Permittivity
  • Dielectric Properties
  • Dielectrics
  • Electric Fields
  • Equations
  • Experimental Data
  • Films
  • Ionization
  • Molecular Dynamics
  • Numerical Analysis
  • Partial Pressure
  • Simulations
  • Thickness

Readers

  • Nanofabrication and Microfabrication.
  • Plasma Physics / Magnetohydrodynamics
  • Plasma Physics.