Wang Fang, Song Zixuan, Cai Xinchen, Guo Kai, Pan Xiaoyu, Ren Chuanlai, Li Bo
School of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China.
College of Integrated Circuits, Nanjing University of Aeronautics and Astronautics, and Key Laboratory of Aerospace Integrated Circuits and Microsystem, Ministry of Industry and Information Technology, Nanjing 211106, China.
Nanoscale. 2025 Mar 24;17(12):6981-6992. doi: 10.1039/d4nr05200e.
The era of the Internet of Things has created an increasing demand for self-powered, flexible sensors. Among various intelligent materials, poly(vinylidene fluoride) (PVDF) has emerged as a promising candidate due to its flexibility, processability, biocompatibility, and unique electroactive properties. PVDF's distinctive piezoelectric, pyroelectric and triboelectric characteristics make it particularly suitable for self-powered flexible sensing applications. While research has primarily focused on enhancing the electroactive β phase, PVDF-based sensors still face limitations in their piezoelectric and pyroelectric performance. External strategies such as electrode design, stress/heat transfer improvements, microstructure optimization, and multifunctional synergy show great potential for improving sensing performance. Although numerous reviews address PVDF's polar phase enhancement, there is limited literature overviewing external strategies for performance optimization. This review focuses on external strategies for enhancing the sensing performance of PVDF-based sensors and their emerging applications. It also addresses practical challenges and future directions in PVDF-based sensor development.
物联网时代对自供电、柔性传感器的需求日益增长。在各种智能材料中，聚偏氟乙烯（PVDF）因其柔韧性、可加工性、生物相容性和独特的电活性特性而成为一种有前途的候选材料。PVDF独特的压电、热电和摩擦电特性使其特别适用于自供电柔性传感应用。虽然研究主要集中在增强电活性β相，但基于PVDF的传感器在压电和热电性能方面仍面临局限性。电极设计、应力/热传递改善、微观结构优化和多功能协同等外部策略在提高传感性能方面显示出巨大潜力。尽管有许多综述涉及PVDF极性相的增强，但概述性能优化外部策略的文献有限。本综述重点关注增强基于PVDF的传感器传感性能的外部策略及其新兴应用。它还讨论了基于PVDF的传感器开发中的实际挑战和未来方向。
