Simulating the Electron Transmission with Different Defective Carbon Nanotubes

• Authors: R. Nizam , S. Rizvi , A. Azam
• Languages of publication: EN

Abstracts

EN

2. The transmissions of forty-eight carbon nanotube geometries to form twenty-four intramolecular junctions between every two carbon nanotubes and two simple carbon nanotubes are also taken for investigating numerically. These forty-eight carbon nanotubes form three different kinds of intramolecular junctions, which mean that each sixteen carbon nanotubes are identical to either sixteen carbon nanotubes in all respect, except three different intramolecular junctions in between them. The three intramolecular junctions, named as circumferential defective carbon nanotubes, grouped defective carbon nanotubes and distributed defective carbon nanotubes. The nature of electronic states at the interfaces and in the semiconductor section is analyzed with the help of tight-binding method. These quantum transmissions have been compared among the different defective carbon nanotubes and have been correlated with the pentagon and heptagon that formed in the intramolecular junction. It has been simulated that each pair of semiconductor-semiconductor carbon nanotubes, semiconductor-metallic carbon nanotubes and metallic-metallic carbon nanotubes transmission affect on the presence of junctions pentagons-heptagons. The least deviations transmission is observed in the circumferential defective carbon nanotubes rather than in other two and the maximum deviations are seen in the grouped defective carbon nanotubes irrespective of the joining of the carbon nanotube interface.

Keywords

EN

73.22.-f

Discipline

• 73.22.-f: Electronic structure of nanoscale materials and related systems

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 1
• Pages: 190-196

Dates

published

2012-07

received

2011-09-05

(unknown)

2012-02-29

(unknown)

2012-03-29

Contributors

author

R. Nizam

• Centre of Excellence in Material Science, Applied Physics Aligarh Muslim University, Aligarh, India

author

S. Rizvi

• Department of Mechanical Engineering, Aligarh Muslim University, Aligarh, India

author

A. Azam

• Centre of Nanotechnology, King Abdulaziz, Kingdom of Saudi Arabia

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Identifiers

DOI

10.12693/APhysPolA.122.190