- Section  (endohistal nano-fullers) 

Introduction of C70 (endohistal nanofullers) in the structure of altropes of electronic carbon nanotubes

Researcher  and author:  Dr. (   Afshin Rashid)



Note: The name fullerene is derived from the geodesic domes that the molecules of this nanoparticle resemble.  Using laser vaporization of graphite and changing the structure of   Cn carbon clusters in carbon nanotubes, the most common of which are C60 and C70. 

The C70 carbon filler molecule can undergo a wide range of new chemical reactions.   They are the third allotropic form of carbon (after graphite and diamond).  Fullerenes consisting of less than 300 carbon atoms (endohistal fullerenes) are commonly known as "buckyballs".

Fullerene molecule is composed of 70 carbon atoms.  C70 Fullerenes are closed hollow cages made of carbon atoms interconnected in pentagonal and hexagonal rings with a cage-like fused ring structure that resembles a rugby ball.  Each carbon atom on the surface of the cage is bonded to three neighboring carbons, and its sp2 bonds combine with one carbon atom at the vertices of each polygon and one bond along each polygon edge. Fullerene  molecules can undergo a wide range of novel chemical reactions.  They easily accept and donate electrons.

C70 carbon nanotubes  act as strong oxidizing insulators for low energy organic layers.  The name Buckyball C70 is derived from its size, because its diameter is in nanometers (about 50,000 times smaller than the diameter of a human head) and its length can reach several millimeters. Their long length of several microns and small diameter of several nanometers results in a very large ratio of length to diameter. Therefore, they can be considered as one-dimensional fluorescents.

In this way, C70 bucky wings have special electronic, mechanical and molecular interesting properties. The characteristic of carbon nanotubes depends on the effect of their almost one-dimensional structure on their molecular and electronic properties. Nanotubes exist in two main categories: single-walled nanotubes and multi-walled nanotubes MWNTs Single-walled nanotubes can be considered as long sheets of graphite wrapped in a cylindrical shape. The ratio of length to diameter of nanotubes is around 1000 and they can be considered as almost one-dimensional structures. Nanotubes are completely formed like graphite.

Conclusion : 

The name fullerene is derived from the geodesic domes that the molecules of this nanoparticle resemble.  Using laser vaporization of graphite and changing the structure of   Cn carbon clusters in carbon nanotubes, the most common of which are C60 and C70. 

  • Researcher  and author: Dr.   (   Afshin Rashid)

  • Specialized doctorate in nano-microelectronics