Fundamentals and Simulation of Electrowetting: Focus on Electrowetting Lens

Electrowetting has become one of the most widely used phenomena for utilizing miniature contents of liquids on surfaces. Electrowetting is an effective way to modify the droplet’s form with an electrical field. In this work, we will review some basics of electrowetting fundamentals and details of electrowetting on dielectric (EWOD) structures and materials. The principle of electrowetting liquid lenses and their particular configurations have been demonstrated. It should be noted that electrowetting lenses are better for commercial use because they use an electrical drive instead of a mechanical approach. After a brief look at the simulation methods, the electrowetting lens and the COMSOL simulation of a model are focused for this sort of electrowetting application. Some crucial criteria are compared to distinguish the appropriate situation and materials.