Authors: Fontana, S.M.; Dadmun, M.D.; Lowndes, D.H.

Source: Journal of Nanoscience and Nanotechnology, Volume 6, Number 12, December 2006 , pp. 3756-3762(7)

Publisher: American Scientific Publishers

Abstract:

Diblock copolymers of polystyrene and poly(methyl methacrylate) are utilized in a thin film to create a nanoscale template, which is used to deposit a nanoscale array of nickel nanodots. Systematic experiments show that this process must be optimized to successfully transfer the order of the diblock copolymer template to the resultant nickel nanodot array. It is found that the amount of nickel deposited dramatically impacts the fidelity of the final nanodot array, with a thickness ratio for copolymer:metal of 8:1 found to be optimal. The results also indicate that the method by which the surface is neutralized for the diblock domain alignment impacts the amount of nickel nanodots that remain on the surface after template removal. Finally, the nanoscale array of nickel nanodots is utilized to successfully grow vertically aligned carbon nanofibers from 18nm and 40 nm diameter nickel dots.

Keywords: CARBON NANOFIBERS; NICKEL NANODOTS; GROWTH

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2006.607

Publication date: 2006-12-01

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• Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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