The Energy Department’s Oak Ridge National Laboratory is creating a set of tools for fabricating perfect graphene sheets, including the recent finding that electron radiation prevents connections between monolayers
Oak Ridge claims to have uncovered a new method of fabricating perfect edges and monolayers in graphene.
Researchers reported last year on a method called Joule heating, that uses an electric current to trim graphene edges to perfection, albeit at the expense of creating structural loops that make connections between monolayers. Using quantum molecular dynamics in their supercomputer simulations, an intermediate step in the edge-formation process was discovered. The researchers harnessed that step to perfect the fabrication method.