Please use this identifier to cite or link to this item:
Title: Large-diameter graphene nanotubes synthesized using Ni nanowire templates
Authors: Wang, R.
Hao, Y. 
Wang, Z.
Gong, H. 
Thong, J.T.L. 
Keywords: carbon nanotube
chemical vapor deposition
Graphene synthesis
nanowire template
Issue Date: 8-Dec-2010
Citation: Wang, R., Hao, Y., Wang, Z., Gong, H., Thong, J.T.L. (2010-12-08). Large-diameter graphene nanotubes synthesized using Ni nanowire templates. Nano Letters 10 (12) : 4844-4850. ScholarBank@NUS Repository.
Abstract: We report a method to synthesize tubular graphene structures by chemical vapor deposition (CVD) on Ni nanowire templates, using ethylene as a precursor at growth temperature of around 750 °C. Unlike carbon nanotubes that are synthesized via conventional routes, the number of graphene layers is determined by the growth time and is independent of the tube diameter and tube length, which follow those of the nanowire template. This allows us to realize large-diameter tubes with shells comprising a few or many layers of graphene as desired. Thin graphene layers are observed to be highly crystalline, and of uniform thickness throughout the length of the nanowire. Raman analysis shows the presence of a small level of defects typical of CVD-grown graphene. The metallic core could be removed by chemical etching to result in a collapsed tube. Backgated field-effect transistor measurements were conducted on the collapsed graphene tube. This approach to the realization of tubular graphene offers new opportunities for graphene-based nanodevices. © 2010 American Chemical Society.
Source Title: Nano Letters
ISSN: 15306984
DOI: 10.1021/nl102445x
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Oct 27, 2021


checked on Oct 27, 2021

Page view(s)

checked on Oct 28, 2021

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.