▎ 摘　　要

A novel heterostructure consisting of two dimensional nanocomposite Ni-Co layered double hydroxides (Ni-Co LDHs) and graphene with adjustable Fermi levels has been studied. Transistor characteristics and memristor properties of the Ni-Co LDHs/graphene oxide heterostructure have been investigated. In consideration of Fermi energy of graphene is modulated under external applied voltage, by constructing Schottky barrier, the current and threshold voltage of the device were effectively modulated by applied different gate voltage. The Ni-Co LDHs/graphene oxide heterostructure device exhibits a good endurance property, as well as data retention property is up to 104 s. The resistive switching characteristics are achieved via the conductive filament. The performance and scheme design of this device have a good prospect in memory applications.