Electrowetting-Based Control of Static Droplet States on Rough Surfaces

摘要: Electrowetting (EW) is a powerful tool to control fluid motion at the microscale and has promising applications in field of microfluidics. The present work analyzes influence an electrowetting voltage determining altering state static droplet resting on rough surface. An energy-minimization-based modeling approach used analyze interfacial energies, surface roughness parameters, electric fields apparent contact angle Cassie Wenzel states under EW voltage. also Cassie-Wenzel transition estimate energy barrier transition. results obtained show that alter relative stabilities enable dynamic morphology surfaces. versatility generalized nature highlighted by application prediction electrowetted consisting dielectric layer nonuniform thickness.