Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6551
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Title: Efficient defect healing in catalytic carbon nanotube growth
Authors: Yuan, Q
Xu, Z
Yakobson, BI
Ding, F 
Issue Date: 15-Jun-2012
Source: Physical review letters, 15 June 2012, v. 108, no. 24, 245505, p. 1-5
Abstract: The energetics of topological defects (TDs) in carbon nanotubes (CNTs) and their kinetic healing during the catalytic growth are explored theoretically. Our study indicates that, with the assistance of a metal catalyst, TDs formed during the addition of C atoms can be efficiently healed at the CNT-catalyst interface. Theoretically, a TD-free CNT wall with 10⁸–10¹¹ carbon atoms is achievable, and, as a consequence, the growth of perfect CNTs up to 0.1–100 cm long is possible since the linear density of a CNT is ∼100 carbon atoms per nanometer. In addition, the calculation shows that, among catalysts most often used, Fe has the highest efficiency for defect healing.
Keywords: Carbon
Carbon nanotubes
Catalysts
Publisher: American Physical Society
Journal: Physical review letters 
ISSN: 0031-9007
EISSN: 1079-7114
DOI: 10.1103/PhysRevLett.108.245505
Rights: Physical Review Letters © 2012 The American Physical Society. The Journal's web site is located at http://prl.aps.org/
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