Patterned Forests of Vertically-Aligned Multiwalled Carbon Nanotubes Using Metal Salt Catalyst Solutions
David J Garrett, Benjamin S Flavel, Keith HR Baronian, Alison J Downard
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | AMER SCIENTIFIC PUBLISHERS | Published : 2013
A simple method for producing patterned forests of multiwalled carbon nanotubes (MWCNTs) is described. An aqueous metal salt solution is spin-coated onto a substrate patterned with photoresist by standard methods. The photoresist is removed by acetone washing leaving the acetone-insoluble catalyst pattern on the substrate. Dense forests of vertically aligned (VA) MWCNTs are grown on the patterned catalyst layers by chemical vapour deposition. The procedures have been demonstrated by growing MWCNT forests on two substrates: silicon and conducting graphitic carbon films. The forests adhere strongly to the substrates and when grown directly on carbon film, offer a simple method of preparing MWC..View full abstract
This work was funded by the MacDiarmid Institute for Advanced Materials and Nanotechnology. Benjamin S. Flavel thanks the Australian Government's Endeavour Research Fellowship program, AJG thanks the MacDiarmid Institute for a Doctoral Scholarship and David J. Garrett thanks the Tertiary Education Commission for a Bright Futures Top Achiever Doctoral Scholarship. We thank Helen Devereux for technical assistance.