Properties And Structures Of Single Walled Carbon Nanotubes (SWNT’s)

Single Walled Carbon nanotubes | Image Resource : carbonallotropes.com

Carbon nanotubes (CNTs) are a recent development that has found its utility and application in a variety of spheres of work. The nanotubes consist up to several tens of graphite shells. SWNT’s can be produced by three major techniques: arc discharge, laser ablation and catalytic growth. The nanotubes are suitable as electron field emitters because of their Nano size, high electrical conductivity, and structural perfection. These also find their application in electronic devices such as field effect transistors.

Nanotubes and much information about them

Initially, the preparation of the nanotubes consisted of needle-like tubes that were produced using arc discharge that is similar to the fullerene synthesis that takes place in an argon filled vessels. On a large scale, it can be produced by using the CVD technique and iron as a catalyst. Single Walled Carbon nanotubes were formed on the substrate containing nanoparticles by deposition of carbon atoms obtained by the decomposition of acetylene at a high temperature.

The technology of single-walled carbon nanotubes has a wide range of applicability especially in the process of optical conductivity. Optical conductivity is one of the fundamental and basic process of metal oxides and can be obtained from reflectivity and absorption measurements.

it also helps in transport properties. Transport at this moment means the electrical conduction of ions within the device. The nanotubes possess mechanical properties such as low stress and hardness and high susceptibility.

The current knowledge and research on carbon nanotubes allows affirming that most of the physical-chemical properties of the material display acute size dependences. They are mostly used for the industrial purposes like sensors, adsorbents and catalysts. The physic-chemical applications of the tubes rely on the size dependence of the optical, transport, mechanical and chemical properties of oxide nonmaterial.