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Free keywords:
Graphene; single crystal; large area; monolayer; heteroepitaxial growth
Abstract:
Large-area single crystal monolayer graphene is synthesized on Ni(111) thin films, which have flat terraces and no grain boundaries. The flat single-crystal Ni films are heteroepitaxially grown on MgO(111) substrates using a buffer layer technique. Low-energy electron diffraction and various spectroscopic methods reveal the long-range single crystallinity and uniform monolayer thickness of the graphene. when transferred onto an insulating wafer, continuous millimeter-scale single domain graphene is obtained.