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Title: Spinodal dewetting under electrowetting

Description: A water drop is spreading in ambient silicone oil driven by electrowetting. The video shows a view of the substrate-drop interface viewed through the transparent substrate. The interference fringes show that an oil layer is dynamically entrapped (in a Landau-Levich-Derjaguin type fashion) by the moving contact line. Subsequently, the entrapped film becomes unstable under the influence of the electric field and decomposes into many drops.

Credits:

References: A.Staicu and F. Mugele (2006) "Electrowetting - Induced Oil Film Entrapment and Instability" Phys. Rev. Lett. 97, 167801.

Web Page: http://pcf.tnw.utwente.nl

Contributed By: Frieder Mugele

 
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