Robust, large area, superhydrophobic surfaces with feature sizes approaching 10 nm are fabricated by block-copolymer-based thin-film patterning. We show that tuning the nanostructure shape and aspect ratio dramatically influences the surface wetting properties, with proper control crucial for achieving superhydrophobicity.
Keywords: block-copolymer lithography; nanostructured surfaces; self assembly; superhydrophobicity; wetting.
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