Li Ming, Zang Huaikuan, Long Jiawei, Sun Sijia, Zhang Yong
School of Materials Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China.
Hubei Engineering Research Center for Collaborative Technology of Advanced Material Manufacturing and Solid Waste Recycling, Huangshi 435003, China.
Materials (Basel). 2025 Jan 29;18(3):615. doi: 10.3390/ma18030615.
With the advent of the intelligent era, flexible piezoelectric tactile sensors, as key components for sensing information and transmitting signals, have received worldwide attention. However, piezoelectric pressure sensors are still currently limited, which severely restricts their practical applications. Furthermore, the demonstrations conducted in labs are not accurate to real-world scenarios. Thus, there is an urgent need to further optimize the intrinsic piezoelectric performance and usage characteristics to meet application requirements. As a representative piezoelectric, polyvinylidene fluoride (PVDF) exhibits significant advantages in terms of excellent flexibility, chemical stability, high electromechanical conversion, low cost, and appropriate acoustic impedance, which allow it to serve as the core matrix in flexible pressure sensors. This paper aims to summarize very recent progress in flexible piezoelectric sensors based on PVDF, including their composition modulation, structure optimization, and applications. Based on a comprehensive summary of recent representative studies, we propose rational perspectives and strategies regarding PVDF-based piezoelectric sensors and provide some new insights for the research and industrial communities.
随着智能时代的到来，柔性压电触觉传感器作为传感信息和传输信号的关键部件，受到了全球关注。然而，压电压力传感器目前仍存在局限性，这严重限制了它们的实际应用。此外，在实验室进行的演示与实际场景并不相符。因此，迫切需要进一步优化其本征压电性能和使用特性，以满足应用需求。作为一种典型的压电材料，聚偏氟乙烯（PVDF）在优异的柔韧性、化学稳定性、高机电转换率、低成本以及合适的声阻抗等方面具有显著优势，这使其能够作为柔性压力传感器的核心基体。本文旨在总结基于PVDF的柔性压电传感器的最新进展，包括其成分调制、结构优化及应用。在对近期代表性研究进行全面总结的基础上，我们针对基于PVDF的压电传感器提出了合理的观点和策略，并为研究和工业界提供了一些新的见解。
