Demonstration of Continuous Electrowetting Actuation
Digital Object Identifier (DOI)
Electrowetting is the change in apparent surface energy of a liquid in an applied electric field. It has shown great promise in diverse applications including lab-on-A-chip and electronic displays. The electrowetting response is typically considered independent of the actuation voltage polarity. This paper describes a new approach that achieves actuation in different directions for positive and negative voltage polarities using the electrochemical characteristics of aluminum electrodes. This paper presents a concept for continuous actuation of a droplet using a single electrode and DC voltage based on this effect. Initial experiments demonstrate that droplet motion is possible. Measurements of voltage drop across aluminum electrodes confirms the polarity-dependent response of the electrodes.
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Citation / Publisher Attribution
ASME 2010 International Mechanical Engineering Congress and Exposition, v. 10, p. 837-841, art. IMECE2010-40060
Scholar Commons Citation
Lynch, Corey M.; Khodayari, Mehdi; Volinsky, Alex A.; and Crane, Nathan B., "Demonstration of Continuous Electrowetting Actuation" (2010). Mechanical Engineering Faculty Publications. 42.