Irreversible Charging Caused by Energy Dissipation from Depinning of Droplets on Polymer Surfaces
Interfacial energy dissipation during stick-slip motion of a liquid drop on a nonconductive polymer substrate is shown to lead to an irreversible increase in electrical charge. This previously unobserved phenomenon occurs during surface wetting, in contrast to the previously reported charge separation mechanism that occurs during dewetting. Understanding this electrification mechanism will facilitate the design of energy harvesters and aid the development of risk mitigation strategies for electrostatic buildup in liquid flow across a wide range of industrial applications.
Authors
- Amanda Vera Ellis (ORCID: https://orcid.org/0000-0002-0053-5641)
- Menghan Chen (ORCID: https://orcid.org/0000-0002-1960-175X)
- Joseph D. Berry (ORCID: https://orcid.org/0000-0002-0961-7782)
- Ronald T. Leon (ORCID: https://orcid.org/0000-0001-8893-7129)
- Peter Cameron Sherrell (ORCID: https://orcid.org/0000-0003-4644-6238)
- Yan Yan (ORCID: https://orcid.org/0000-0002-3968-1320)
- S. K. Chen
- Rahmat Qambari
Institutions
- The University of Melbourne (AU)
- MIT University (MK)
- RMIT University (AU)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-03-11
- DOI
- https://doi.org/10.1103/physrevlett.134.104002
- Citations
- 5
- Primary Topic
- Surface Modification and Superhydrophobicity
- Type
- article
- Field-Weighted Citation Impact
- 3.31
Funders
- Australian Government
- RMIT University
- University of Melbourne
- Australian Research Council