期刊
APPLIED SURFACE SCIENCE
卷 257, 期 7, 页码 2955-2959出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2010.10.098
关键词
Novel ZnS nanostructure; Chemical vapor deposition; Self-cleaning; Super water-repellent; Electrowetting
类别
资金
- Natural Science Foundation of China [10874115, 10734020]
- National Major Basic Research Project [2010CB933702]
- Shanghai Nanotechnology Research Project [0952nm01900]
- Shanghai Key Basic Research Project [08JC1411000]
- Research fund for the Doctoral Program of Higher Education of Chain
A novel ZnS hierarchical structure composed of nanorod arrays with branched nanosheets and nanowires grown on their upside walls, was synthesized over Au-coated silicon substrate via chemical vapor deposition technique. Contact angle and sliding angle of this hierarchical film with no surface modification were measured to be about 153.8 degrees and 9.1 degrees for 5 mu l water droplets. Self-cleaning behavior and dynamic water-repelling performance were clearly demonstrated. In addition, electrowetting transition phenomenon from superhydrophobic to hydrophilic state happened when a critical bias similar to 7.0 V was applied. Below this threshold voltage, the contact angle change is little. This work for the first time reports the creation of ZnS superhydrophobic surface and could enrich its research field as surface functional materials. (C) 2010 Elsevier B.V. All rights reserved.
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