Junctions of left- and right-handed chiral carbon nanotubes nanobamboo

Koltai, Janos and Rusznyak, Adam and Zolyomi, Viktor and Kurti, Jeno and Laszlo, Istvan (2009) Junctions of left- and right-handed chiral carbon nanotubes nanobamboo. physica status solidi (b), 246 (11-12). pp. 2671-2674. ISSN 0370-1972

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Abstract

Single walled carbon nanotubes can be used as nanoscale reaction chambers for producing smaller nanotubes within the host tube from encapsulated fullerenes by annealing. The diameter of the host outer tube restricts the diameter of the inner tube due to van der Waals interactions, but not chirality; however, only a few chiralities are allowed for any given outer tube diameter. It is possible that inner tubes with different chiralities – or the same chirality but left- and right-handedness– can start to grow in different places at the same time. A straight junction occurs at the connection of these two tubes. The geometry of different kinds of junctions containing pentagon and heptagon defects was optimized by density functional theory. The effect of the localized states on the electronic band structure was investigated. Geometry of our (6,4) nanobamboo from two points of view. The pentagon and heptagon defects are highlighted.

Item Type:
Journal Article
Journal or Publication Title:
physica status solidi (b)
Additional Information:
23rd Winterschool on Electronic Properties of Novel Materials, Kirchberg, GERMANY, MAR 14, 2009
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
55853
Deposited By:
Deposited On:
16 Jul 2012 08:56
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 07:58