Researchers from the University of Twente have looked into graphene's behavior when it is placed on boron nitride. It turns out that if the graphene is placed in a certain angle over the BN, it opens a bandgap. If it is placed in a random angle, the band gap will not open.
The researchers also discovered that if the graphene/BN structure is placed on copper, that can be contacted with other devices, a charge distribution (dipole layer) is also formed on the interface between copper and boron nitride.
Source:
Posted: Nov 19,2013 by Ron Mertens