How to Achieve Reversible Electrowetting on Superhydrophobic Surfaces
| Autor: | Angeliki Tserepi, Michail E. Kavousanakis, Evangelos Gogolides, Kosmas Ellinas, Nikolaos T. Chamakos, Athanasios G. Papathanasiou |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
02 engineering and technology Surfaces and Interfaces Substrate (electronics) Surface finish 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Electrochemistry Electrowetting General Materials Science Wetting Composite material 0210 nano-technology Spectroscopy |
| Zdroj: | Langmuir. 34:4173-4179 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/acs.langmuir.7b04371 |
| Popis: | Collapse (Cassie to Wenzel) wetting transitions impede the electrostatically induced reversible modification of wettability on superhydrophobic surfaces, unless a strong external actuation (e.g., substrate heating) is applied. Here we show that collapse transitions can be prevented (the droplet remains suspended on the solid roughness protrusions) when the electrostatic force, responsible for the wetting modification, is smoothly distributed along the droplet surface. The above argument is initially established theoretically and then verified experimentally. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|