Journal
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
Volume 40, Issue 7, Pages 2454-2456Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physe.2007.10.016
Keywords
ZnO nanowires; electrodeposition; water-repellent films; octadecylsilane
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Zinc oxide (ZnO) films with well-controlled morphologies have been prepared by electrochemical deposition. A seed layer of nanocrystallites of ZnO was prepared from which ZnO nanowires were grown from a low concentration of ZnCl2. The nanowires are rough and dense and their superhydrophilicity is enhanced. A treatment with an alkylsilane (octadecylsilane) yields superhydrophobic surfaces with very high advancing and receding contact angles 173 degrees/172 degrees and a very low roll-off angle. Our superhydrophobic films are stable for more than 6 months. (c) 2007 Elsevier B.V. All rights reserved.
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