Multi-layer graphene wire grown by annealing sputtered amorphous carbon

Abstract

We have fabricated multi-layer graphene directly on SiO2 by annealing sputtered amorphous carbon with a Co catalyst without use of complicated transfer processes. Structural analysis revealed that the graphene sheets formed an epitaxial structure, aligned to the Co (111) surface. An MLG wire can sustain a high current density of 107 A/cm2 which is over one order of magnitude higher than that of a Cu wire.