Hierarchical polymer micropillar arrays decorated with ZnO nanowires

被引：31

作者：

Ko, Hyunhyub ^{[1
,2
,3
]}

Zhang, Zhenxing ^{[1
,2
,3
]}

Takei, Kuniharu ^{[1
,2
,3
]}

Javey, Ali ^{[1
,2
,3
]}

机构：

[1] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Berkeley Sensor & Actuator Ctr, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 29期

关键词：

SURFACES; GROWTH;

D O I：

10.1088/0957-4484/21/29/295305

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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.

引用

页数：5

共 23 条

[1] Skeleton of Euplectella sp.:: Structural hierarchy from the nanoscale to the macroscale [J].