Geometrical Model Based Refinements in Nanotube Chiral Indices

Chkhartishvili, Levan; Berberashvili, Tamar

doi:10.4236/wjnse.2011.12007

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“…Hence electronic structure of a CNT depends only on its geometrical dimension without any doping [3]. Attempts have been made to specify the indices for a given diameter, with theoretical refinement [5]. However, it is valid for single wall CNT, and is complex for MWCNT.…”

Section: Introductionmentioning

confidence: 99%

Geometrical Modeling of Walls of Multiwall Carbon Nanotube

Hembram¹,

Reddy²,

Rao³

2013

OJCM

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The relationship between the adjacent walls of the multiwall carbon nanotube (MWCNT) has been investigated and geometrical formulations have been derived. We have provided the relative index for each wall, owing to the diameter of the MWCNT. The index is higher for the smaller inner diameter MWCNT, and smaller for the higher inner diameter MWCNT. In the second formulation, we have put an empirical relation between the ratio of number of hexagons in the adjacent walls of two different sub-lattices. One can speculate the properties of inner walls from these relations by obtaining the accurate diameter of the concentric walls of a MWCNT.

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Section: Introductionmentioning

confidence: 99%