Graphene on insulating crystalline substrates

S. Akcoeltekin, M. El Kharrazi, B. Koehler +2

We show that it is possible to prepare and identify ultra--thin sheets of graphene on crystalline substrates such as SrTiO${}_3$, TiO${}_2$, Al${}_2$O${}_3$ and CaF${}_2$ by standard techniq…