Ferroelectric Materials Based Coupled Nanogenerators

Abstract

Innovations in nanogenerator technology foster pervading self-power devices for human use, environmental surveillance, energy transfiguration, intelligent energy storage systems, and wireless networks. Energy harvesting from ubiquitous ambient mechanical, thermal, and solar energies by nanogenerators is the hotspot of the modern electronics research era. Ferroelectric materials, which show spontaneous polarization, are reversible when exposed to the external electric field, and are responsive to external stimuli of strain, heat, and light are promising for modeling nanogenerators. This review demonstrates ferroelectric material-based nanogenerators, practicing the discrete and coupled pyroelectric, piezoelectric, triboelectric, and ferroelectric photovoltaic effects. Their working mechanisms and way of optimizing their performances, exercising the conjunction of effects in a standalone device, and multi-effects coupled nanogenerators are greatly versatile and reliable and encourage resolution in the energy crisis. Additionally, the expectancy of productive lines of future ensuing and propitious application domains are listed.

Ferroelectric Polarization‐Enhanced Performance of Flexible CuInP2S6 Piezoelectric Nanogenerator for Biomechanical Energy Harvesting and Voice Recognition Applications

“…Previous studies found that ferroelectric polarization contributed substantially to the performance improvement of triboelectric nanogenerators, [26][27][28] which means the output performance of nanogenerators is enhanced dramatically by introducing ferroelectric materials. Additionally, ferroelectric-enhanced performance has been demonstrated in several 2D electric devices, including field effect transistors, [29] 2D photodetectors, [30] etc.…”

Flexible Hybridized Nanogenerators Based on a Reduced Graphene Oxide Nanosheet-Decorated Piezoceramic Skeleton to Impact Mechanical and Thermal Energy Harvesting

“…According to the experimental results and previous literature research, − a possible mechanism with respect to piezoelectric–pyroelectric synergistic enhancement is proposed (Figure ). For the PDMS-based composites with a rGO nanosheet-decorated Sm-PMN-PT ceramic skeleton structure, the macroscopic piezoelectric and pyroelectric effects are mainly related to the change of ferroelectric polarization .…”