Faster switching speed with Graphene Nano ribbons

Graphene is a wonder material, it opened the way to the study of realm of 2-D material. Electronic properties are very different from usual conductors. The very fast conduction of electron in Graphene is termed as Ballistic Conduction. Argentinian and Brazilian physicists have now successfully calculated the conditions of the transport, or conductance mechanisms, in Graphene Nano ribbons. Though Graphene have remarkable properties but they are of little use if we can’t control the current.

Many researchers are working on this path, recently according to a paper published in EPJ B, yield a clearer theoretical understanding of conductivity in graphene samples of finite size, which have applications in externally controlled electronic devices. One aspect of conductivity is the electron transport gap, which is the minimal energy required for electric current to pass through the material. The electron transport gap is an important factor for applications in electronic devices, because when the transport gap is controllable, it can be used as a switch in transistors.

The main conclusion of their research was that the transport gap is inversely proportional to width of Nano ribbon. In addition, the authors focused on direct current conductivity, which is expected to jump through well-defined sharp steps, and referred to as quantisation. More precise theoretical models are now required for a better understanding of the experimental behaviour of nanoribbons.

This is not the break through though a lot have to discover to employ Graphene like a gate material.

Faster switching speed with Graphene Nano ribbons