Sahoo, Prasana ; Dhara, S. ; Dash, S. ; Baldev Raj, ; Manna, I. ; Tyagi, A. K. (2011) Air trapped nanocavity induced superhydrophobicity on GaN microbelt Applied Physics Letters, 98 (4). 043103_1-043103_3. ISSN 0003-6951
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Official URL: http://link.aip.org/link/?APPLAB/98/043103/1
Related URL: http://dx.doi.org/10.1063/1.3541877
Abstract
In the present study, nanotextured surface protrusion induced superhydrophobicity in GaN microbelt is reported. The results show that along with nanometer-scale topographic features, the special air trapped nanocavities formed beneath the liquid droplet are solely responsible for the transition of superhydrophobicity having hydrophilic origin in GaN. The built-in nanocavities, ( ~ 80 nm in diameter) provide an ideal model for producing stable air trapped region. A calculation of shape of the meniscus at the interface of air and water in an isolated cavity correlates well with the macroscopic surface wetting behavior.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 40443 |
| Deposited On: | 24 May 2011 06:27 |
| Last Modified: | 16 Jul 2012 15:46 |
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