Progress in Piezoelectric Nanogenerators Based on PVDF Composite Films
Yuan Wang1, Laipan Zhu2, Cuifeng Du1
1School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Micromachines
|November 27, 2021
Summary
Poly(vinylidene fluoride) (PVDF) composite films with various nanofillers enhance piezoelectric nanogenerators (PENGs). This review explores how these materials improve energy harvesting for self-powered devices.
Area of Science:
- Materials Science
- Energy Harvesting
- Nanotechnology
Background:
- Growing demand for portable, sustainable energy drives advancements in energy harvesting.
- Poly(vinylidene fluoride) (PVDF) and its copolymers are key materials for piezoelectric nanogenerators (PENGs) due to their excellent electroactivity and mechanical properties.
Purpose of the Study:
- To review the impact of diverse nanofillers on the piezoelectric response and energy-harvesting capabilities of PVDF-based composite films.
- To elucidate the piezoelectric mechanisms within these composite PENGs for efficient energy conversion.
Main Methods:
- Comprehensive literature review of PVDF-based composite films incorporating various nanofillers.
- Analysis of the effects of organic-inorganic lead halide perovskites, inorganic lead halide perovskites, perovskite-type oxides, semiconductor piezoelectric materials, 2D layered materials, and ions.
Main Results:
- Nanofillers significantly influence the piezoelectric properties and energy-harvesting efficiency of PVDF-based PENGs.
- Different nanofiller types (e.g., perovskites, 2D materials) offer distinct mechanisms for enhancing piezoelectric performance.
Conclusions:
- Understanding nanofiller-PVDF interactions is crucial for optimizing piezoelectric composite films.
- These advanced materials pave the way for high-performance self-powered sensors and electronic devices.
