Stormonth-Darling, J. M. , Pedersen, R. H., How, C. and Gadegaard, N. (2014) Injection moulding of ultra high aspect ratio nanostructures using coated polymer tooling. Journal of Micromechanics and Microengineering, 24(7), 075019. (doi: 10.1088/0960-1317/24/7/075019)
|
Text
94816.pdf - Published Version Available under License Creative Commons Attribution. 3MB |
Abstract
Replication-based nanofabrication techniques offer rapid, cost effective ways to produce nanostructured devices for a host of applications in engineering, biological research and beyond. In this work we developed a method to replicate ultra high aspect ratio (UHAR) nanopillars by injection molding with failure rates lower than one pillar in a thousand. We provide a review of the literature in which replication of difficult micro- and nanostructures is facilitated through the use of different tooling materials and surface coatings, before describing the non-adhesive surface coatings which we used to translate a previously developed technique from low to high aspect ratios. This development involved a systematic study of nine different surface coatings on polymer tooling initially patterned by nanoimprint lithography. Using this method we were able to produce injection moulded pillar-like nanostructures with aspect ratios of up to 20:1, more than 6 times that reported elsewhere in the literature for this type of feature.
Item Type: | Articles |
---|---|
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | How, Mr Colin and Stormonth-Darling, Mr John and Pedersen, Mr Rasmus and Gadegaard, Professor Nikolaj |
Authors: | Stormonth-Darling, J. M., Pedersen, R. H., How, C., and Gadegaard, N. |
College/School: | College of Science and Engineering > School of Engineering > Biomedical Engineering College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Journal of Micromechanics and Microengineering |
Publisher: | IOP Publishing Ltd. |
ISSN: | 0960-1317 |
ISSN (Online): | 1361-6439 |
Copyright Holders: | Copyright © 2014 IOP Publishing Ltd. |
First Published: | First published in Journal of Micromechanics and Microengineering 24(7):075019 |
Publisher Policy: | Reproduced under a Creative Commons License |
University Staff: Request a correction | Enlighten Editors: Update this record