Abstract
A two-tier nanostructure comprising a 20-nm-diameter nanograss on 100-nm-diameter nanopillars exhibits robust and near-perfect superhydrophobicity, that is, water contact angles close to 180° and sliding angles close to 0°. Although the solid fraction was very low (0.02%), this surface could support a drop of water under a pressure of 234 Pa.
Original language | English |
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Pages (from-to) | 597-601 |
Number of pages | 5 |
Journal | Advanced Materials |
Volume | 22 |
Issue number | 5 |
DOIs | |
State | Published - 2 Feb 2010 |