Strain Lattice Imprinting in Graphene by C60 Intercalation at the Graphene/Cu Interface.

Monazami, E; Bignardi, L; Rudolf, P; Reinke, P · Nano Lett · 2015

basic_science · Level V

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Abstract

Intercalation of C60 molecules at the graphene-substrate interface by annealing leads to amorphous and crystalline structures. A comparison of topography and electronic structure with wrinkles and moiré patterns confirms intercalation. The intercalated molecules imprint a local strain/deformation on the graphene layer whose magnitude is controlled by the intermolecular distance. The crystalline intercalated structure exhibits a superlattice peak in the local density of states. This work provides control of local strain in graphene.