Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/35685
Title: Precise determination of the threshold diameter for a single-walled carbon nanotube to collapse
Authors: He, MS
Dong, JC
Zhang, KL
Ding, F 
Jiang, H
Loiseau, A
Lehtonen, J
Kauppinen, EI
Keywords: Closed-edged bilayer graphene nanoribbon
Large-diameter single-walled carbon nanotube
Collapse
Gold catalyst
Chemical vapor deposition
Issue Date: 2014
Publisher: American Chemical Society
Source: ACS nano, 2014, v. 8, no. 9, p. 9657-9663 How to cite?
Journal: ACS nano 
Abstract: Closed-edged bilayer graphene nanoribbons were formed by the spontaneous collapse of large-diameter single-walled carbon nanotubes (SWNTs) grown on gold nanoparticles by chemical vapor deposition. Such bilayer graphene nanoribbons could adopt different stacking configurations, such as AB-stacking or stacking order with any rotation angle, correlated with the chiral angles of their parent rounded SWNTs. On the basis of the electron diffraction characterizations on a good number of collapsed and uncollapsed SWNTs, the threshold diameter for SWNTs to collapse was precisely determined to be 5.1 nm, independent of the chiral angle of the SWNTs. The determination is consistent with that calculated by both classical adaptive intermolecular reactive empirical bond order force field and density functional theory after having taken the stacking effect and thermal fluctuation into account.
URI: http://hdl.handle.net/10397/35685
ISSN: 1936-0851 (print)
1936-086X (online)
DOI: 10.1021/nn5042812
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