Soft imprinting: Creating highly ordered porous anodic alumina templates on substrates for nanofabrication

被引:31
作者
Chong, Ai Shing Maria [1 ]
Tan, Lee Kheng [1 ]
Deng, Jie [1 ]
Gao, Han [1 ]
机构
[1] Inst Mat Res & Engn, Singapore 117602, Singapore
关键词
D O I
10.1002/adfm.200600993
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We demonstrate a "soft-imprinting" method for the fabrication of highly ordered porous anodic alumina (HOPAA) templates on different substrates (such as Si, glass slides, and flexible polyimide films) over large areas (> 1.5 cm(2)). In this process, Ar plasma etching is employed to soft imprint an evaporated Al film on the substrates using a free-standing HOPAA template as a mask, thus creating ordered nanoindentations on the At surface. The ordered nanoindentat ions in turn guide the subsequent anodization of At to generate HOPAA templates on the substrates (HOPAA-substrates), which inherit the pattern of the freestanding HOPAA mask. This soft-imprinting technique is also applicable to the fabrication of HOPAA on flexible polymer films. To demonstrate the potential uses of the HOPAA-substrates in nanofabrication, highly ordered Au nanowire arrays are fabricated on a Si substrate and TiO2 nanotube arrays are prepared on a glass substrate via solution- and vapor-based fabrication processes, respectively.
引用
收藏
页码:1629 / 1635
页数:7
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