Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions.
Nanoscale Adv
; 3(3): 643-646, 2021 Feb 10.
Article
in En
| MEDLINE
| ID: mdl-36133837
ABSTRACT
Multi-walled carbon nanotubes (MWCNTs) show an oscillation in electrical resistance (from I-V measurements) during mechanical distortion in which peak separation is inversely correlated with the diameter of the MWCNTs. These results provide the first experimental support of the theoretical prediction that distortion causes Van Hove singularities and Dirac cones in MWCNTs to misalign and cause the opening of the band gap, and suggest that when fabricating contacts for CNTs for device applications, the pressure caused by the contact deposition method must be taken into account for manufacturing devices with consistent properties.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Nanoscale Adv
Year:
2021
Document type:
Article