Simple, Large-Scale Patterning of Hydrophobic ZnO Nanorod Arrays
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- 作者：Seong Been Kim ; Won Woo Lee ; Jaeseok Yi ; Won Il Park ; Jin-Sang Kim ; William T. Nichols
- 刊名：ACS Applied Materials & Interfaces
- 出版年：2012
- 出版时间：August 22, 2012
- 年：2012
- 卷：4
- 期：8
- 页码：3910-3915
- 全文大小：525K
- 年卷期：v.4,no.8(August 22, 2012)
- ISSN：1944-8252
文摘
Here we describe a simple, versatile technique to produce large-scale arrays of highly ordered ZnO nanorods. Patterning of three distinct ZnO crystal morphologies is demonstrated through use of different ZnO seed layers. Array formation is accomplished through a simple variation on nanosphere lithography that imprints a thickness variation across a PMMA mask layer. The area of exposed seed layer is controlled through etching time in an oxygen plasma. Subsequent hydrothermal growth from the patterned seed layer produces high-quality ZnO crystals in uniform arrays. The high uniformity of the patterned array is shown to induce a high contact angle hydrophobic state even without the need for chemical modification of the ZnO surface. This technique provides a straightforward way to integrate the optical and electrical properties of high-quality ZnO nanorods with the tunable fluidic properties at the surface of well-ordered arrays.