Title
Ion irradiation for improved graphene network formation in carbon nanotube growth Ion irradiation for improved graphene network formation in carbon nanotube growth
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Oxford ,
Subject
Physics
Chemistry
Source (journal)
Carbon. - Oxford
Volume/pages
77(2014) , p. 790-795
ISSN
0008-6223
ISI
000340689400083
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Ion irradiation of carbon nanotubes very often leads to defect formation. However, we have recently shown that Ar ion irradiation in a limited energy window of 1025 eV may enhance the initial cap nucleation process, when the carbon network is in contact with the metal nanocatalyst. Here, we employ reactive molecular dynamics simulations to demonstrate that ion irradiation in a higher energy window of 1035 eV may also heal network defects after the nucleation stage through a non-metal-mediated mechanism, when the carbon network is no longer in contact with the metal nanocatalyst. The results demonstrate the possibility of beneficially utilizing ions in e.g. plasma-enhanced chemical vapour deposition of carbon nanotubes.
E-info
https://repository.uantwerpen.be/docman/iruaauth/f8c204/b0eaa9b8fc7.pdf
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