Applying pressure to a carbon nanotube and increasing electrical properties (based on the doctorate of nano-microelectronics PHD)

Researcher  and author: PhD student  Afshin Rashid

Note: Applying pressure to a nanotube can change its electrical properties, which can increase or decrease the conductivity of a nanotube depending on the type of traction.

This is due to changes in the quantum structure of electrons. Therefore, it is possible to build transformers or nanotube-based transmitters that are very sensitive to very small forces. Also, the ability of nanotubes to feel very small changes in pressure and reversing this pressure as an  electrical signal can make it possible to make nanotube switches sensitive to very small changes. Nanotubes are conductive or semiconductor depending on how their graphite plates are rolled In other words, because nanotubes look like intertwined molecules at the molecular level,  carbon atoms are joined together in a hexagonal shape, and these hexagonal patterns form cylindrical walls. It is only a few nanometers in size. The torsion angle of a type of nanotube, defined as the angle between its hexagonal pattern  axis and the tube axis, determines whether it is conductive or non-conductive. The change in radius also makes it  possible to close the bandwidth and insulate the metal nanotube. So we can say that the two basic parameters that play a key role in this  , one is the structure of the nanotube and the other is its diameter and size. And  from a conductor to a semiconductor or a variable C insulator insulating nanotubes depending on the molecule  Because carbon nanotubes are able to pass electrical current through the surface without the friction of an electron ballast  - this current is 100 times greater than the current flowing through a copper wire - so nanotubes are an ideal choice for  many applications. They are microelectronic.

Single-walled carbon nanotubes consist only of carbon and a simple sheet structure of regular hexagons. From the beginning of work on single-walled walls, they have been referred to as one-dimensional phenomena until this theory progressed step by step. The reason for the interest in these single-walled nanotubes and their efforts to replace them in industry, Based on theoretical calculations and electrostatic effects, excellent mechanical and electrical conductivity properties such as metals, of course, the production of single-walled nanotubes has a high cost and production is difficult to stabilize along with their properties while processing -nano-tubes. .

Conclusion: 

Applying pressure to a nanotube can change its electrical properties, which can increase or decrease the conductivity of a nanotube depending on the type of traction.

Author: PhD Student  ( Afshin Rashid)

PhD student in Nano-Microelectronics at Islamic Azad University, Science and Research Branch, Tehran