▎ 摘　　要

NOVELTY - Graphene device comprises a precursor graphene device and a graphene layer, where the precursor graphene device comprises an insulator layer, where at least the top portion of the insulator layer is an electrical insulator, a metal layer in contact with and covering part of the top of the insulator layer, and a carbon layer in contact with the metal layer and on top of the insulator layer, and the graphene layer is in contact with the metal layer and the top of the insulator layer. The device further comprises a passivation layer. The metal comprises cobalt, nickel, rhenium, palladium or platinum. The metal layer comprises titanium or chromium. The passivation layer comprises aluminum trioxide, hafnium dioxide, tantalum pentoxide, zinc oxide, titanium dioxide or silicon dioxide. USE - Used as graphene device.