Impact of substrate elasticity on contact angle saturation in electrowetting.

ABSTRACT: The electrostatically assisted wettability enhancement of dielectric solid surfaces, commonly termed as electrowetting-on-dielectric (EWOD), facilitates many microfluidic applications due to simplicity and energy efficiency. The application of a voltage difference between a conductive droplet and an insulated electrode substrate, where the droplet sits, is enough for realizing a considerable contact angle change. The contact angle modification is fast and almost reversible; however it is limited by the well-known saturation phenomenon which sets in at sufficiently high voltages. In this work, we experimentally show and computationally support the effect of elasticity and thickness of the dielectric on the onset of contact angle saturation. We found that the effect of elasticity is importan

SUBMITTER: Markodimitrakis IE 

PROVIDER: S-EPMC8110038 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature