title: Single-step formation of ZnO/ZnWO(x) bilayer structure via interfacial engineering for high performance and low energy consumption resistive memory with controllable high resistance states.
abstract: A spontaneously formed ZnO/ZnWOx bilayer resistive memory via an interfacial engineering by one-step sputtering process with controllable high resistance states was demonstrated. The detailed formation mechanism and microstructure of the ZnWOx layer was explored by X-ray photoemission spectroscopy (XPS) and transmission electron microscope in detail. The reduced trapping depths from 0.46 to 0.29 eV were found after formation of ZnWOx layer, resulting in an asymmetric I-V behavior. In particular, the reduction of compliance current significantly reduces the switching current to reach the stable operation of device, enabling less energy consumption. Furthermore, we demonstrated an excellent performance of the complementary resistive switching (CRS) based on the ZnO/ZnWOx bilayer structure with DC endurance >200 cycles for a possible application in three-dimensional multilayer stacking.
authors.affiliation: Department of Materials Science and Engineering, Center For Nanotechnology, Material Science, and Microsystem, National Tsing Hua University, Hsinchu, Taiwan, ROC.
authors.forename: Shih-Ming
authors.initials: SM
authors.lastname: Lin
authors.forename: Jian-Shiou
authors.initials: JS
authors.lastname: Huang
authors.forename: Wen-Chih
authors.initials: WC
authors.lastname: Chang
authors.forename: Te-Chien
authors.initials: TC
authors.lastname: Hou
authors.forename: Hsin-Wei
authors.initials: HW
authors.lastname: Huang
authors.forename: Chi-Hsin
authors.initials: CH
authors.lastname: Huang
authors.forename: Su-Jien
authors.initials: SJ
authors.lastname: Lin
authors.forename: Yu-Lun
authors.initials: YL
authors.lastname: Chueh
mesh_terms: D017097:Electric Impedance; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology; D010316:Particle Size; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D015034:Zinc Oxide