Saturation effects in dynamic electrowetting

Wang, K.-L.; Jones, T. B.
January 2005
Applied Physics Letters;1/31/2005, Vol. 86 Issue 5, p054104
Academic Journal
The same mechanism responsible for contact angle saturation of electrically stressed aqueous droplets also clamps the electromechanical force exerted on aqueous liquids in structures using dielectric-coated electrodes. Alternating current frequency strongly influences the upper limit imposed on this force. Furthermore, studies of transient, field-induced motion suggest that this mechanism is suppressed when the contact line moves rapidly along the coated electrodes.


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