Breath Figures under Electrowetting: Electrically Controlled Evolution of Drop Condensation Patterns.

  title={Breath Figures under Electrowetting: Electrically Controlled Evolution of Drop Condensation Patterns.},
  author={Davood Baratian and Ranabir Dey and Harmen Hoek and Dirk van den Ende and Frieder Mugele},
  journal={Physical review letters},
  volume={120 21},
We show that electrowetting (EW) with structured electrodes significantly modifies the distribution of drops condensing onto flat hydrophobic surfaces by aligning the drops and by enhancing coalescence. Numerical calculations demonstrate that drop alignment and coalescence are governed by the drop-size-dependent electrostatic energy landscape that is imposed by the electrode pattern and the applied voltage. Such EW-controlled migration and coalescence of condensate drops significantly alter the… 

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