A New Technique for Developing Better Graphene


Published Date : Mar 19, 2015

A group of scientists at Caltech have come up with a technique for producing graphene. A substance comprising a carbon layer which is of one atom thickness, produced at normal room temperature may have the ability to help in the manufacturing of commercially feasible solar cells that are graphene based, flexible electronics, and large panel based displays. According to a scientist, who was a part of the team that developed this technique stated that this latest technique can aid in creating huge sheets of graphene that are of electronic grade; and this will hardly be time consuming and can be carried out at significantly lower temperatures. 

Graphene is such s material that can bring about phenomenal changes in the fields of science and engineering because of the unique properties that it possesses. This means that it could exhibit 200 times greater tensile strength as against steel, and also electrical mobility which is two or three magnitudes greater than silicon. A material’s electrical mobility refers to the measure of the ease with which the electrons travel across the surface. But on the downside, achieving such properties on a commercial or industrial scale is rather challenging and complicated. 

The current techniques call for temperatures which are not too high in order to incorporate the fabrication of graphene along with the present type of electronic manufacturing. Moreover, graphene at very high temperatures has a tendency of inducing large and uncontrolled distribution strain that is a certain deformation caused in the material. And this deformity has an adverse impact on the intrinsic properties. The new technique can consistently create almost strain free and high mobility graphene without very high temperature, and that too in a matter of a couple of minutes.