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| Content Provider | IET Digital Library |
|---|---|
| Author | Chan, Hoi Kei Mak, Pui In Siu, Shirley W. I. |
| Abstract | Molecular dynamics simulation has been used to investigate the behaviour of a water nanodroplet on a hydrophobic surface under an applied electric field. The model system mimics a typical electrowetting-on-dielectric experiment of an open-plate coplanar electrodes system. Given the various strengths of the electrode-induced field, variations in contact angle of the droplet, hydrogen bonding and diffusion coefficient of the water molecules are disclosed. Their main findings are: (i) nanodroplet displays asymmetric electrowetting in contact angle measurement; (ii) water molecules and the entire droplet are slightly positively biased; (iii) more water hydrogen bonds are maintained in the positive side, in both the first and the second hydration layer to the surface; and (iv) water diffusion is higher in parallel to the surface than the normal direction. |
| Starting Page | 486 |
| Ending Page | 489 |
| Page Count | 4 |
| Volume Number | 12 |
| e-ISSN | 17500443 |
| Issue Number | Issue 7, Jul (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/12/7 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2016.0824 |
| Journal | Micro & Nano Letters |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2017-07-01 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution-Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) |
| Subject Keyword | Angle of Contact Applied Electric Field Computer Simulation of Static And Dynamic Liquid Behaviour Contact Angle Coplanar Electrowetting-on-dielectric Crystal Binding Diffusion Coefficient Drops Electrode-induced Field Fluid Surface Energy Hydration Layer Hydrogen Bonding Hydrogen Bonds Hydrophobic Surface Interface Tension Molecular Dynamics Method Molecular Dynamics Simulation Multiphase Flows Open-plate Coplanar Electrodes System Surface Tension Water Water Diffusion Water Molecule Water Nanodroplet Wetting |
| Content Type | Text |
| Resource Type | Article |
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