Contact angle saturation in electrowetting using different electrode widths

Authors

Cindy Cease Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños
Joybel Bugna Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños
Lou Serafin Lozada Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños

Abstract

In the present study, we investigated the effect of voltage applied between a sessile drop and a metal strip. The drop is insulated from metal strips by a dielectric material coated with a hydrophobic layer. The width of metal strips used were w = 0.3, 0.6, 1.0, 1.5, 2.0 mm. Results revealed that droplet deformation, measured using the change in contact angle, agrees with the
Lippmann-Young equation for V_applied < V_sat. Contact angle saturation was observed at V_applied ≥ V_sat,ave. Saturation voltage and change in contact angle decreased for width w from 0.3 mm to 1.0 mm. However deformation was greater for w > 1.0.

Downloads

Issue

2013: Proceedings of the 31st Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2013-PB-12

Section

Poster Session PB

Published

2013-10-23

How to Cite

[1]

C Cease, J Bugna, and LS Lozada, Contact angle saturation in electrowetting using different electrode widths, Proceedings of the Samahang Pisika ng Pilipinas 31, SPP2013-PB-12 (2013). URL: https://proceedings.spp-online.org/article/view/SPP2013-PB-12.