SAHAF , H.

Single atomic layers of graphene show intriguing electronic and transport properties, and in the last few years they have been in the focus of interest for two-dimensional electron devices with high electron mobilities. Although the classical way to produce graphene is by exfoliation from a graphite crystal, supported graphene layers can also...

An epitaxial layer of graphene was grown on a pre patterned 6H-SiC(0001) crystal. The graphene smoothly covers the hexagonal nano-holes in the substrate without the introduction of small angle grain boundaries or dislocations. This is achieved by an elastic deformation of the graphene by ~0.3% in accordance to its large elastic strain limit....