6533b7d2fe1ef96bd125e229
RESEARCH PRODUCT
Electrical conductance of carbon nanotubes with misaligned ends
Nicola MontinaroAntonio PantanoGiuseppe Muratoresubject
Materials scienceCarbon nanotube actuatorsBioengineeringMechanical properties of carbon nanotubesGeneral ChemistryCarbon nanotubeCondensed Matter PhysicsAtomic and Molecular Physics and OpticsCarbon nanotubes Electromechanical behavior Transport Properties Numerical Methodslaw.inventionSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineCarbon nanobudZigzagElectrical resistance and conductancePotential applications of carbon nanotubeslawModeling and SimulationGeneral Materials ScienceBallistic conduction in single-walled carbon nanotubesComposite materialdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-08-10 |