Preparation of high-performance polymer piezoelectric thin film by electric field induction technology

In recent years, more and more researchers pay attention to how to collect energy from the surrounding environment, and then a piezoelectric energy collector is born. In this work, we selected polyacrylonitrile with a large dipole moment (3.5 Debye) and successfully controlled the molecular conformation of polyacrylonitrile by using electric field polarization technology. By precisely control the intensity of the polarized electric field, the polyacrylonitrile film with high voltage signal output was obtained. At the same time, a simple energy collection device was prepared to prove the commercialization prospect of this technology in polyacrylonitrile film. We believe this technology provides a new method for energy collection, which is conducive to the design of integrated self-powered wearable electronic equipment.