@article {Zhou:2009:1533-4880:4211, title = "Superhydrophobic Multi-Scale ZnO Nanostructures Fabricated by Chemical Vapor Deposition Method", journal = "Journal of Nanoscience and Nanotechnology", parent_itemid = "infobike://asp/jnn", publishercode ="asp", year = "2009", volume = "9", number = "7", publication date ="2009-07-01T00:00:00", pages = "4211-4214", itemtype = "ARTICLE", issn = "1533-4880", eissn = "1533-4899", url = "https://www.ingentaconnect.com/content/asp/jnn/2009/00000009/00000007/art00034", doi = "doi:10.1166/jnn.2009.M34", keyword = "ZNO, CVD METHOD, MICRO-NANO MULTI-SCALE STRUCTURE, SUPERHYDROPHOBIC", author = "Zhou, Ming and Feng, Chengheng and Wu, Chunxia and Ma, Weiwei and Cai, Lan", abstract = "The ZnO nanostructures were synthesized on Si(100) substrates by chemical vapor deposition (CVD) method. Different Morphologies of ZnO nanostructures, such as nanoparticle film, micro-pillar and micro-nano multi-structure, were obtained with different conditions. The results of XRD and TEM showed the good quality of ZnO crystal growth. Selected area electron diffraction analysis indicates the individual nano-wire is single crystal. The wettability of ZnO was studied by contact angle admeasuring apparatus. We found that the wettability can be changed from hydrophobic to super-hydrophobic when the structure changed from smooth particle film to single micro-pillar, nano-wire and micro-nano multi-scale structure. Compared with the particle film with contact angle (CA) of 90.7\textdegree, the CA of single scale microstructure and sparse micro-nano multi-scale structure is 130140\textdegree, 140150\textdegree respectively. But when the surface is dense micro-nano multi-scale structure such as nano-lawn, the CA can reach to 168.2\textdegree. The results indicate that microstructure of surface is very important to the surface wettability. The wettability on the micro-nano multi-structure is better than single-scale structure, and that of dense micro-nano multi-structure is better than sparse multi-structure.", }