Tribology-driven modulation of piezoelectricity in 2D CdS bilayers: a first-principles investigation.

ABSTRACT: The pronounced electronegativity difference and exceptional non-centrosymmetricity of two-dimensional (2D) cadmium sulfide (CdS) offer an exceptional piezoelectric effect, positioning it as a promising material for next-generation energy-harvesting devices. This study examines the piezoelectric properties of 2D CdS bilayers driven by tribological effects and assesses their feasibility for nano energy harvesting applications. Two types of tribological effects, namely in-plane sliding motion and out-of-plane compression, are applied to a CdS bilayer to investigate its piezoelectric properties, including potential energy, polarization deviations, charge density, shear strength, induced voltage, and power density. The results indicate that in-plane sliding, which transitions the bilayer struct

SUBMITTER: Islam ASMJ 

PROVIDER: S-EPMC12696468 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature