Abstract
Electrowetting on dielectric (EWOD) devices were fabricated using two hydrophobic organic fluoropolymers, comprising CYTOP (a product name) having different chemical structures only at the terminal functional groups. These devices were subsequently characterized by applying a range of direct current (DC) voltages. The data demonstrated that the EWOD performance was dramatically improved upon incorporating a CYTOP polymer having highly polar terminal functional groups, as compared to a polymer having terminal groups with lower polarity. The new finding about the positive effect of highly polar terminal functional groups on the enhancement of EWOD was exhibited through various careful experiments, changing only the quantitative amount of polar terminal functional groups while keeping other factors constant (thickness, substrate, etc.).
Highlights
Electrowetting on dielectric (EWOD) refers to the phenomenon in which the wetting properties of a liquid droplet on a dielectric are modified by an applied voltage.In principle, the dielectric delays electrolysis, allowing for the reversible manipulation of surface wettability
A low voltage (
The aim of these four approaches was to investigate the effect of polar terminal functional groups of the fluoropolymer on the EWOD device performance with keeping all other factors constant
Summary
Electrowetting on dielectric (EWOD) refers to the phenomenon in which the wetting properties of a liquid droplet (typically composed of water) on a dielectric are modified by an applied voltage. Mibus et al [9] and Li et al [10] studied metal oxide/fluoropolymer bilayer EWOD systems based on aluminum oxide and tantalum pentoxide These devices were fabricated by a simple low temperature anodization process. A low voltage (
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call