Mesoscopic sliding ferroelectricity enabled photovoltaic random access memory for material-level artificial vision system.

ABSTRACT: Intelligent materials with adaptive response to external stimulation lay foundation to integrate functional systems at the material level. Here, with experimental observation and numerical simulation, we report a delicate nano-electro-mechanical-opto-system naturally embedded in individual multiwall tungsten disulfide nanotubes, which generates a distinct form of in-plane van der Waals sliding ferroelectricity from the unique combination of superlubricity and piezoelectricity. The sliding ferroelectricity enables programmable photovoltaic effect using the multiwall tungsten disulfide nanotube as photovoltaic random-access memory. A complete "four-in-one" artificial vision system that synchronously achieves full functions of detecting, processing, memorizing, and powering is integrated into

SUBMITTER: Sun Y 

PROVIDER: S-EPMC9474805 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature