Graphene consists of one atomic layer of carbon, and so it belongs to the class of two-dimensional materials. It is extraordinary stable and electrons can move on it extremely fast. Researchers at the Japanese RIKEN institute found now a new way to prepare graphene.
To do this, they radiated graphite in the microwave adding an ionic liquid. The graphene layers are separated with the help of the irradiation. Then, the ionic liquid can penetrate between the layers to keep them separated.