Piezoelectric Polymers

摘要

Abstract Piezoelectric polymers are promising alternatives to perovskite ferroelectrics to develop soft and flexible sensors, actuators, robotics, and energy harvesters due to low cost, flexibility, biocompatibility, smaller acoustical impedance and so on. This article provides an update on the major advancements in the development of poly(vinylidene fluoride)‐based ferroelectric polymers for piezoelectric applications and summarizes the physical models used to understand the negative longitudinal piezoelectric coefficients. We address the fundamentals in understanding of the piezoelectric effect in other piezoelectric polymers and also discuss the piezoelectric polymer‐based devices.