Electrohydrodynamic instability of thin conductive liquid films

Xiang Fa Wu, Yuris A. Dzenis

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

This paper considers the effect of surface charges on the surface instability of thin conductive liquid films. A characteristic relation is obtained for determining the wave number of the fastest growing mode as a function of surface tension, dispersive van der Waals force and electrostatic tractions exerted by the film surface charges. Two natural length scales of the microsystem are further introduced to account for the coupling effects on the dewetting pattern development. The present results can be used for controlled surface pattern modulation in a spinodal-dewetting scenario via amplification of surface waves of selected modes.

Original languageEnglish (US)
Pages (from-to)2848-2850
Number of pages3
JournalJournal of Physics D: Applied Physics
Volume38
Issue number16
DOIs
StatePublished - Aug 21 2005

Fingerprint

Electrohydrodynamics
Conductive films
electrohydrodynamics
Liquid films
Surface charge
Van der Waals forces
Traction (friction)
Microsystems
liquids
Surface waves
drying
Amplification
Surface tension
Electrostatics
Modulation
traction
surface waves
interfacial tension
electrostatics
modulation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Cite this

Electrohydrodynamic instability of thin conductive liquid films. / Wu, Xiang Fa; Dzenis, Yuris A.

In: Journal of Physics D: Applied Physics, Vol. 38, No. 16, 21.08.2005, p. 2848-2850.

Research output: Contribution to journalArticle

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