Layered Ferroelectric NbOI₂ Flakes Toward In-Plane Anisotropic Self-Powered Sensing.

ABSTRACT: 2D ferroelectric materials have attracted much interest due to their potential for developing flexible self-powered nanogenerators. Niobium oxide diiodide (NbOI₂) has in-plane anisotropy of electrical properties and large lateral piezoelectric coefficient, which makes it possess high-performance and unique behavior in flexible sensing. In this work, multidirectional piezoelectric nanogenerator (PENG) devices using NbOI₂ flake are fabricated and excellent energy harvesting and sensing capabilities are found. Specifically, the NbOI₂-based PENG can exhibit a long-time stable voltage output of 215 mV at a large strain of 1.1%. More importantly, the periodic output signal pattern of the twelve-electrode NbOI₂-based PENG in six directions is investigat

SUBMITTER: Sun X 

PROVIDER: S-EPMC11934979 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature