Features of Pyroelectric and Dielectric Properties of Polyvinylidene Fluoride-Based Composites Obtained by Crystallization in a Corona Discharge Field

We fabricated polyvinylidene fluoride (PVDF) based composites comprised polar inclusions of deuterated triglycine sulfate (DTGS) oriented during the crystallization to enhance pyroelectric activity, as well as study their pyroelectric and dielectric properties. The calculated pyroelectric coefficient yields values ranging from 0.01 × 10–4 to 0.2 × 10–4 C/(m2 K), depending on the filler concentration. This value coincides with the pyroelectric coefficient for PVDF films manufactured by the standard method. The dispersion of dielectric properties of PVDF-based composite samples does not depend on the film manufacturing method noticeably. However, the dielectric permittivity of films obtained by the standard method is approximately 10–15% lower.