Electronic failure in CNTs multilayered carbon nanotube molecules

1 آذر 1402 - خواندن 2 دقیقه - 114 بازدید



Note: Carbon nanotubes (CNTs) are large cylindrical molecules consisting of a hexagonal arrangement of hybrid carbon atoms that can be formed by creating a single graphene sheet (single-walled carbon nanotubes, SWCNTs) or by assembling several graphene sheets (multiple ) to be formed.

In the state of electronic failure ,  different molecules on the surface of CNTs nanotubes have similar conditions in terms of the length of SWCNTs and their hardness. There are many properties and applications of carbon nanotubes that make full use of the aspect ratio of CNTs, mechanical strength, electrical and thermal conductivity. Practical electronic breakdown in conducting CNTs. CNTs with a specific combination of N and M  (structural parameters indicating how twisted the nanotube is)  can be highly conductive and therefore metallic. Their conductivity is shown to be a function of their chirality (degree of twist) as well as their diameter. CNTs can be metallic or semi-conductive in their electrical behavior.



Some types of CNTs made in the diagonal "chair" mode perform better than other metallic CNTs. In addition, intrawall reactions in MWNTs have been found to distribute the flow over individual tubes more uniformly. However, there is no change in current in different parts of single-walled metallic CNTs. However, the electronic breakdown behavior is different in semiconducting SWNTs, such that the transport current changes abruptly at different positions on the CNTs. The conductivity, resistance and electronic breakdown of SWNT are measured by placing electrodes in different parts of CNTs.



Conclusion :
Electronic failure between   carbon nanotube molecules  with a natural junction (where a direct metal part joins a chiral semiconductor part) behaves as a rectifier diode.