Structure and pyroelectric properties of PVDF ferroelectric films obtained by 3D printing

AbstractThis article reports a method to produce polymer films of polyvinylidene fluoride (PVDF) by an additive manufacturing (3D printing). Method Fused Deposition Modeling (FDM) allows using PVDF and its copolymers not only in microelectronics as pyroelectric and piezoelectric sensors, as well as creating dynamic memory elements, organic solar cells and used in robotics. The surface morphology of the samples observed by scanning electron microscopy (SEM) presents in this paper. Pyroelectric measurements performed by the dynamic method show the presence of a noticeable pyroelectric response in PVDF films obtained using additive technologies, bypassing the orientation extraction stage. The calculation of the pyroelectric coefficient gives values corresponding to the values of the pyroelectric coefficient for PVDF samples obtained by traditional methods.Keywords: Polyvinylidene fluorideferroelectric filmsadditive manufacturing3D printingFDMscanning electron microscopypyroelectricity Additional informationFundingThis work was supported by the Russian Foundation for Basic Research under Grant no. 20-32-90143.