Frequency Dependence of Low-Voltage Electrowetting Investigated by Impedance Spectroscopy.

Abstract

An electrowetting-on-dielectric (EWOD) electrode was developed that facilitates the use of low alternating voltages (≤5 VAC). This allows online investigation of the frequency dependence of electrowetting by means of impedance spectroscopy. The EWOD electrode is based on a dielectric bilayer consisting of an anodic tantalum pentoxide (Ta2O5) thin film (d… (More)
DOI: 10.1021/acs.langmuir.7b03049

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