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Edwards, AMJ 
ORCID: https://orcid.org/0000-0003-3338-1287, Ledesma-Aguilar, R, Newton, MI ORCID: https://orcid.org/0000-0003-4231-1002, Brown, CV ORCID: https://orcid.org/0000-0002-1559-3238 and McHale, G,
2020.
Electrostatic control of dewetting dynamics.
Applied Physics Letters, 116 (25): 253703.
ISSN 0003-6951
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Abstract
The stability of liquid films on surfaces are critically important in microscale patterning and the semiconductor industry. If the film is sufficiently thin it may spontaneously dewet from the surface. The timescale and rate of dewetting depend on the film repellency of the surface and the properties of the liquid. Therefore, control over the repellency requires modifying surface chemistry and liquid properties to obtain the desired rate of film retraction. Here, we report how the dynamics of a receding thin liquid stripe to a spherical cap droplet can be controlled by programming surface repellency through a non-contact electrostatic method. We observe excellent agreement between the expected scaling of the dynamics for a wide range of voltage-selected final contact angles. Our results provide a method of controlling the dynamics of dewetting with high precision and locality relevant to printing and directed templating.
| Item Type: | Journal article |
|---|---|
| Publication Title: | Applied Physics Letters |
| Creators: | Edwards, A.M.J., Ledesma-Aguilar, R., Newton, M.I., Brown, C.V. and McHale, G. |
| Publisher: | AIP Publishing |
| Date: | 22 June 2020 |
| Volume: | 116 |
| Number: | 25 |
| ISSN: | 0003-6951 |
| Identifiers: | Number Type 10.1063/5.0010443 DOI 1331783 Other |
| Rights: | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in EDWARDS, A.M.J., LEDESMA-AGUILAR, R., NEWTON, M.I., BROWN, C.V. and MCHALE, G., 2020. Applied Physics Letters, 116 (25): 253703 and may be found at https://doi.org/10.1063/5.0010443. |
| Divisions: | Schools > School of Science and Technology |
| Record created by: | Jill Tomkinson |
| Date Added: | 29 Jun 2020 15:16 |
| Last Modified: | 31 May 2021 15:18 |
| URI: | https://irep.ntu.ac.uk/id/eprint/40132 |
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