Electronic conduction of nano-graphene strips in miniaturization and improving the efficiency of nano-electronic devices (based on nano - micro-electronics PHD ) (educational-research doctorate)
Researcher and author PhD student : Afshin Rashid
Note: The seemingly simple nanoscale systems are very effective in miniaturizing and improving the performance of electronic devices. These systems also show interesting features in the occurrence of phenomena based on quantum interference.
Especially in the case of circular nanostructures, the conduction effects can be mentioned. One of the most important ring systems is graphene, which is known to be the first stable two-dimensional structure in condensed matter. The emergence of graphene has had a major impact on the development of molecular electronics. However, due to the lack of a gap in its energy spectrum, it is difficult to accurately control its conductivity. A possible solution to this dilemma is to limit graphene in one dimension and create graphene nanofibers that create a gap in the energy spectrum. The size of this gap can be controlled by the width and circumference of the structure, and according to the structure of the nanofibers, which are composed of graphene rings, the effect of their electrical conductivity can be controlled by the magnetic flux passing through the nanotube rings.If the nanoscale of the narrow graphene strip narrows, in this case from seven to nine atoms, a special zone is created in the transition, because the electronic properties of the two regions are "protected" differently by a special method, so-called topological. Therefore, a very strong new quantum state is created in the transmission region. This local electronic quantum mode can now be used as a main feature to produce semiconductors, metals or special insulators - and possibly even as a feature in nanotechnology.
Based on these novel or quantum quantum chains, precise nanoparticles can be made. The strength of the connections increases due to the dispersion of the grain boundary and the dispersion of the side walls of the electrons. Increasing the heat of the joule and the low carrying capacity of the nano-scale connections, and due to its significant electrical properties and other properties, graphene becomes a reliable candidate for next-generation connections. Graphene is the lowest resistance material with high current density, high average free path and high electron mobility. For practical application, graphene sheet with a thin layer or graphene nanoparticles (GNR) is the most suitable bonding material. However, the geometric structure slightly alters the electrical properties of the GNR compared to the ideal behavior of graphene film.
Conclusion:
The seemingly simple nanoscale systems are very effective in miniaturizing and improving the performance of electronic devices. These systems also show interesting features in the occurrence of phenomena based on quantum interference.
Author: PhD Student ( Afshin Rashid)