Simple Fabrication of Asymmetric High-Aspect-Ratio Polymer Nanopillars by Reusable AAO Templates

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• 作者：Moon Kee Choi ; Hyunsik Yoon ; Kyunghee Lee ; Kyusoon Shin
• 刊名：Langmuir
• 出版年：2011
• 出版时间：March 15, 2011
• 年：2011
• 卷：27
• 期：6
• 页码：2132-2137
• 全文大小：933K
• 年卷期：v.27,no.6(March 15, 2011)
• ISSN：1520-5827

文摘

We present a simple method of utilizing anodized aluminum oxide (AAO) as a reproducible template for fabricating high-aspect-ratio uniformly bent polymeric nanopillars that can be used as a physical adhesive. It is shown how to achieve straight high-aspect-ratio nanopillars with concepts of the work of adhesion and lateral collapse between polymer pillars without serious damage to the master template. With the support of manufacturing polymeric nanopillars from the reusable AAO, a simple route to asymmetric dry adhesive nanopillars bent by residual stresses was demonstrated.