期刊
NANOTECHNOLOGY
卷 21, 期 29, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/21/29/295305
关键词
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资金
- DARPA/DSO
- NSF Center of Integrated Nanomechanical Systems
- Berkeley Sensor and Actuator Center
- China Scholarship Council
- Lawrence Berkeley National Laboratory
- World Class University at Sunchon National University
We introduce a simple and robust method for fabricating hierarchical fibrillar arrays based on polymer micropillar (mu PLR) arrays decorated with ZnO nanowires (NWs) on mechanically flexible substrates. The hierarchical fibrillar arrays are fabricated by replica molding of polymer mu PLR arrays on microfabricated silicon templates and subsequent solution-based growth of ZnO NWs. Fine control over the dimensions and aspect ratios of both the microelements and the nanoelements is demonstrated. The hierarchical mu PLR/NW arrays show superhydrophobic surface properties, with the contact angle higher than that of planar surfaces and mu PLR arrays without nanostructures. The fabrication strategy suggested here may be potentially extended to fabricate other organic/inorganic hierarchical systems for different applications.
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