Theoretical study on the electronic structure nature of single and double walled carbon nanotubes and its role on the electron transport

Abstract On the basis of a theoretical study, this research incorporates an eccentricity into a system of compressed double-walled carbon nanotubes (DWCNTs). In order to formulate the stability equations, a kinematic displacement with reference to the classical beam hypothesis is utilized. Furthermore, the influence of nanoscale size is taken into account with regard to the nonlocal approach of strain gradient, and the van der Waals interaction for both inner and outer tubes is also considered based on the Lennard–Jones model. Galerkin decomposition is employed to numerically deal with the governing equations. It is evidently demonstrated that the geometrical eccentricity remarkably affects the stability threshold and its impact is to increase the static stability of DWCNTs.

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Effect of interwall interaction on the electronic structure of double-walled carbon nanotubes

Nanotechnology ◽

10.1088/0957-4484/26/16/165201 ◽

2015 ◽

Vol 26 (16) ◽

pp. 165201 ◽

Cited By ~ 7

Author(s):

M Soto ◽

T A Boyer ◽

S Biradar ◽

L Ge ◽

R Vajtai ◽

...

Keyword(s):

Carbon Nanotubes ◽

Electronic Structure ◽

Double Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

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Theoretical study of the molecular and electronic structure of one-dimensional crystals of potassium iodide and composites formed upon intercalation in single-walled carbon nanotubes

Physical Review B ◽

10.1103/physrevb.73.125441 ◽

2006 ◽

Vol 73 (12) ◽

Cited By ~ 31

Author(s):

Emma L. Sceats ◽

Jennifer C. Green ◽

Stephanie Reich

Keyword(s):

Carbon Nanotubes ◽

Electronic Structure ◽

Potassium Iodide ◽

Theoretical Study ◽

Single Walled Carbon Nanotubes ◽

One Dimensional ◽

Single Walled Carbon ◽

Walled Carbon Nanotubes ◽

Molecular And Electronic Structure

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INTER-LAYER INTERACTION IN DOUBLE-WALLED CARBON NANOTUBES EVIDENCED BY SCANNING TUNNELING MICROSCOPY AND SPECTROSCOPY

NANO ◽

10.1142/s1793292008000903 ◽

2008 ◽

Vol 03 (02) ◽

pp. 65-73 ◽

Cited By ~ 3

Author(s):

CRISTINA E. GIUSCA ◽

YANN TISON ◽

S. RAVI P. SILVA

Keyword(s):

Carbon Nanotubes ◽

Electronic Structure ◽

Scanning Tunneling Microscopy ◽

Electronic Properties ◽

Local Density ◽

Scanning Tunneling ◽

Tunneling Microscopy ◽

Layer Interaction ◽

Double Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

Scanning Tunneling Microscopy and Spectroscopy have been used in an attempt to elucidate the electronic structure of nanotube systems containing two constituent shells. Evidence for modified electronic structure due to the inter-layer interaction in double-walled carbon nanotubes is provided by the experimental tunneling spectra and the contribution of the inner tube to the local density of states of the "composite" double-walled system is identified in agreement with previous theoretical calculations. An explicit correlation between the chirality of the two constituent tubes, the inter-wall interaction and the overall electronic structure for double-walled carbon nanotubes, is demonstrated by our experiments, showing that the effect the inner tube has on the overall electronic structure of double-walled nanotubes cannot be neglected, and is key to the opto-electronic properties of the system. We postulate that previous analysis of the opto-electronic properties on multiple-walled carbon nanotubes based purely on the outer layer chirality of the tube needs significant modification based on new understanding brought forth with our analysis.

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