  Electrowetting on dielectric is demonstrated with a thin spin-coated
fluoropolymer over an aluminum electrode. Previous efforts to use thin
spin-coated dielectric layers for electrowetting have shown limited success due
to defects in the layers. However, when used with a citric acid electrolyte and
anodic voltages, repeatable droplet actuation is achieved for 5000 cycles with
an actuation of just 10 V. This offers the potential for low voltage
electrowetting systems that can be manufactured with a simple low-cost process.
