High-power nanogenerator of 2D-layered perovskite in a polymer matrix for self-charging battery-powered electronics

Abstract

Recently two-dimensional layered halide perovskites (2D-layered HPs) with superior piezo-/ferroelectric properties and exceptional environmental stability have become potential alternatives to 3D-HPs. Herein, air-stable 2D-layered 1,3-propanediammonium lead iodide (DAPPbI4) perovskite is introduced as a promising filler material in a poly(vinylidene fluoride) (PVDF) polymer for the development of a high-performance and mechanically robust DAPPbI4-PVDF composite triboelectric nanogenerator (TENG). The triboelectric output performance is noticeably enhanced for 15 wt% DAPPbI4 owing to its improved electro-active beta-phase PVDF (-90%), high dielectric constant (similar to 47.4), and high piezoelectric coefficient (similar to 26.6 pm/V). The TENG achieved a high output voltage of similar to 662 V, current density of similar to 18.7 mu A/cm(2), unprecedented high power-density of similar to 4.28 mW/cm(2), and excellent pressure sensitivity of similar to 13.31 V/kPa with outstanding mechanical durability and operational stability. The application of HP-based TENG as a sustainable power source for various portable electronics is demonstrated by charging a Li-ion battery (LIB) in a short time using the TENG output.