Electrically tunable superhydrophobic nanostructured surfaces
Article first published online: 17 NOV 2005
© 2005 Lucent Technologies Inc.
Bell Labs Technical Journal
Special Issue: Nanotechnology
Volume 10, Issue 3, pages 161–170, Autumn (Fall) 2005
How to Cite
Krupenkin, T., Taylor, J. A., Kolodner, P. and Hodes, M. (2005), Electrically tunable superhydrophobic nanostructured surfaces. Bell Labs Tech. J., 10: 161–170. doi: 10.1002/bltj.20111
- Issue published online: 17 NOV 2005
- Article first published online: 17 NOV 2005
- Manuscript Accepted: JUL 2005
In this work, we discuss dynamic electrical control of the wetting behavior of liquids on nanostructured surfaces spanning the entire possible range from superhydrophobic behavior to nearly complete wetting. It is demonstrated that a droplet of liquid can be reversibly switched between the superhydrophobic “rolling ball” state and the hydrophilic immobile droplet state by the application of electrical voltage and current. The nature of the transition mechanism is studied both experimentally and theoretically. The reported results provide novel methods of manipulating liquids at microscale. © 2005 Lucent Technologies Inc.