▎ 摘　　要

NOVELTY - The utility model claims a Hall device and electronic device. the Hall device comprises a substrate; the substrate of the active region, the active region comprising a graphene layer formed on the surface of the substrate and is formed on the graphene layer of fluorinated graphene layer, and the periphery of the active area, and the active area contact of the metal electrode. The embodiment of the utility model can avoid pollution preparing technique and environment pollution to graphene Hall device performance and stability, to improve the sensitivity of the Hall device.