Change search
ReferencesLink to record
Permanent link

Direct link
On the Stability and Abundance of Single Walled Carbon Nanotubes
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Department of Physics, Umeå University, Department of Physics, University of California.
Physics Department, Göteborg University.
Department of Physics, Umeå University.
Show others and affiliations
2015 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 5, 16850Article in journal (Refereed) Published
Abstract [en]

Many nanotechnological applications, using single-walled carbon nanotubes (SWNTs), are only possible with a uniform product. Thus, direct control over the product during chemical vapor deposition (CVD) growth of SWNT is desirable, and much effort has been made towards the ultimate goal of chirality-controlled growth of SWNTs. We have used density functional theory (DFT) to compute the stability of SWNT fragments of all chiralities in the series representing the targeted products for such applications, which we compare to the chiralities of the actual CVD products from all properly analyzed experiments. From this comparison we find that in 84% of the cases the experimental product represents chiralities among the most stable SWNT fragments (within 0.2 eV) from the computations. Our analysis shows that the diameter of the SWNT product is governed by the well-known relation to size of the catalytic nanoparticles, and the specific chirality is normally determined by the product’s relative stability, suggesting thermodynamic control at the early stage of product formation. Based on our findings, we discuss the effect of other experimental parameters on the chirality of the product. Furthermore, we highlight the possibility to produce any tube chirality in the context of recent published work on seeded-controlled growth.

Place, publisher, year, edition, pages
2015. Vol. 5, 16850
Research subject
Tillämpad fysik
URN: urn:nbn:se:ltu:diva-8424DOI: 10.1038/srep16850Local ID: 6ef8fdc5-e0fd-40e1-8ac0-14060031f749OAI: diva2:981362
Validerad; 2015; Nivå 2; 20151119 (danhed)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

Open Access in DiVA

fulltext(969 kB)0 downloads
File information
File name FULLTEXT01.pdfFile size 969 kBChecksum SHA-512
Type fulltextMimetype application/pdf
fulltext(116 kB)0 downloads
File information
File name FULLTEXT02.pdfFile size 116 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Hedman, DanielLarsson, Andreas
By organisation
Material Science
In the same journal
Scientific Reports

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

ReferencesLink to record
Permanent link

Direct link