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Electrical conductance of carbon nanotubes with misaligned ends
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Journal Article
Electrical conductance of carbon nanotubes with misaligned ends
2013
Overview
During a manufacturing process, when a straight carbon nanotube is placed on a substrate, e.g., production of transistors, its two ends are often misaligned. In this study, we investigate the effects of multiwall carbon nanotubes’ (MWCNTs) outer diameter and chirality on the change in conductance due to misalignment of the two ends. The length of the studied MWCNTs was 120 nm, while the diameters ranged between 4 and 7 nm. A mixed finite element-tight-binding approach was carefully designed to realize reduction in computational time by orders of magnitude in calculating the deformation-induced changes in the electrical transport properties of the nanotubes. Numerical results suggest that armchair MWCNTs of small diameter should work better if used as conductors, while zigzag MWCNTs of large diameter are more suitable for building sensors.
Graphical Abstract
Publisher
Springer Netherlands,Springer,Springer Nature B.V
Subject
/ Carbon
/ Characterization and Evaluation of Materials
/ Chemistry and Materials Science
/ Cross-disciplinary physics: materials science; rheology
/ Exact sciences and technology
/ General equipment and techniques
/ Lasers
/ Molecular electronics, nanoelectronics
/ Nanoscale materials and structures: fabrication and characterization
/ Optics
/ Physics
/ Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
/ Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing
