Nanoscale multistate resistive switching in WO₃ through scanning probe induced proton evolution.

ABSTRACT: Multistate resistive switching device emerges as a promising electronic unit for energy-efficient neuromorphic computing. Electric-field induced topotactic phase transition with ionic evolution represents an important pathway for this purpose, which, however, faces significant challenges in device scaling. This work demonstrates a convenient scanning-probe-induced proton evolution within WO₃, driving a reversible insulator-to-metal transition (IMT) at nanoscale. Specifically, the Pt-coated scanning probe serves as an efficient hydrogen catalysis probe, leading to a hydrogen spillover across the nano junction between the probe and sample surface. A positively biased voltage drives protons into the sample, while a negative voltage extracts protons out, giving rise to a reversible

SUBMITTER: Zhang F 

PROVIDER: S-EPMC10319886 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature