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Reversible Wettability on Polycrystalline Diamond Films Between Superhydrophobicity and Superhydrophilicity

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Abstract:

Reversible wettability on the polycrystalline diamond film was investigated through the alternation of hydrogen and oxygen plasma treatment. This can be ascribed to the reversible switching of the surface terminal chemical properties between two different states. The water contact angle could be varied between 5.9° and 88.9° when the diamond film was prepared on a flat substrate. When diamond films with multi-scaled roughness were fabricated, the wettability conversion could be amplified, leading to switching between superhydrophobicity and superhydrophilicity.

Keywords: DIAMOND FILM; MULTI-SCALED ROUGHNESS; PLASMA TREATMENT; SUPERHYDROPHILIC; SUPERHYDROPHOBIC

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2010.2891

Publication date: 2010-11-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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