How Electrostatic Fields Change Contact Angle in Electrowetting

  title={How Electrostatic Fields Change Contact Angle in Electrowetting},
  author={Kwan Hyoung Kang}
The electrowetting phenomenon is investigated in the viewpoint of the classical electrostatics. Special attention is devoted to excavating the influence of excess charge induced at the edge region of a droplet. For this, the electrostatic field around an infinite wedge is analyzed, assuming the droplet as a perfect conductor. It is shown that the Maxwell stress is concentrated on the small region comparable to the thickness of the thin dielectric film beneath the liquid droplet. On the basis of… CONTINUE READING


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