Journal ArticleDOI
Instability of the interface between thin fluid films subjected to electric fields.
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TLDR
The results show that the presence of nonzero conductivity in either one or both of the fluids has a profound influence on the length-scale characteristic of the linear instability: a reduction even by a factor of 1/50 in the length scale can be effected when compared to the interface between two perfect dielectrics.About:
This article is published in Journal of Colloid and Interface Science.The article was published on 2004-06-01. It has received 135 citations till now. The article focuses on the topics: Dielectric & Liquid dielectric.read more
Citations
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Dynamics and stability of thin liquid films
Richard V. Craster,Omar Matar +1 more
TL;DR: The dynamics and stability of thin liquid films have fascinated scientists over many decades: the observations of regular wave patterns in film flows along a windowpane or along guttering, the patterning of dewetting droplets, and the fingering of viscous flows down a slope are all examples that are familiar in daily life.
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Electric field induced instability and pattern formation in thin liquid films.
TL;DR: Electrostatic field induced instability, morphology, and patterning of a thin liquid film confined between two electrodes with an air gap are studied on the basis of nonlinear 3D simulations, both for spatially homogeneous and heterogeneous fields.
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Micro- and nano-patterns created via electrohydrodynamic instabilities
Ning Wu,William B. Russel +1 more
TL;DR: In this paper, a review of recent advances in patterning of thin films by using electrohydrodynamic instabilities, a simple and cost-effective bottom-up method, is presented.
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Electrically induced pattern formation in thin leaky dielectric films
Richard V. Craster,Omar Matar +1 more
TL;DR: In this article, the stability of the interface between two thin leaky dielectric liquid layers bounded between two flat electrodes is considered and a coupled system of evolution equations is derived for the interfacial location and charge density using lubrication theory.
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Instability, self-organization and pattern formation in thin soft films.
TL;DR: This article classify the instability of a thin polymer film into three broad categories, which are: instability of an ultra-thin (<100 nm) viscous film engendered by amplification of thermally excited surface capillary waves due to interfacial dispersive van der Waals forces, and instability arising from the attractive inter-surface interactions.
References
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ELECTROHYDRODYNAMICS:The Taylor-Melcher Leaky Dielectric Model
TL;DR: In the mid 1960s GI Taylor introduced the leaky dielectric model to explain the behavior of droplets deformed by a steady field, and JR Melcher used it extensively to develop electrohydrodynamics.
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Electrically induced structure formation and pattern transfer
TL;DR: A simple electrostatic technique is reported that creates and replicates lateral structures in polymer films on a submicrometre length scale, based on the fact that dielectric media experience a force in an electric field gradient.
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The stability of a horizontal fluid interface in a vertical electric field
TL;DR: The stability of the horizontal interface between conducting and non-conducting fluids under the influence of an initially uniform vertical electric field is discussed in this paper, where it is assumed that a large horizontal electrode is immersed in the nonconducting fluid, and the part of the interface below the electrode rises till at a voltage V, which depends on the interfacial tension, the height of the electrode above the interface and the density difference, the interface becomes unstable for vertical displacements Z which satisfy the equation.
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Lithographically induced self-assembly of periodic polymer micropillar arrays
Stephen Y. Chou,Lei Zhuang +1 more
TL;DR: In this paper, the self-formation of periodic, supramolecular (micrometer scale) pillar arrays in a thin, single-homopolymer film melt, which was originally flat on a plate was observed.
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Hierarchical structure formation and pattern replication induced by an electric field
Mihai D. Morariu,Nicoleta E. Voicu,Erik Schäffer,Zhiqun Lin,Thomas P. Russell,Ullrich Steiner +5 more
TL;DR: A replication process is described where multiple materials are processed simultaneously and electrohydrodynamic instabilities at both polymer surfaces produce a hierarchic lateral structure that exhibits two independent characteristic dimensions.