Designs and processes toward high aspect ratio nanostructures at the deep nanoscale: unconventional nanolithography and its applications.
The patterning of high resolution featured deep nanoscale structures with a high aspect ratio (AR) has received increasing attention in recent years as a promising technique for a wide range of applications, including electrical, optical, mechanical and biological systems. Despite extensive efforts to develop viable nanostructure fabrication processes, a superior technique enabling defect free, high resolution control over a large area is still required. In this review, we focus on recent important advances in the designs and processes of high resolution nanostructures possessing a high AR, including hierarchical and 3D patterns. The unique applications of these materials are also discussed.
Nanotechnology