Enhanced piezoelectric performance of core–shell structured PVDF/PC nanofiber films via electrospinning

In this investigation, we report the synthesis of a novel core–shell structured organic composite piezoelectric material through the application of coaxial electrospinning technology. This approach not only markedly enhances the piezoelectric properties but also preserves the inherent flexibility of the underlying piezoelectric polymer. Specifically, the incorporation of a non-piezoelectric polymer core (PC) within the PVDF nanofibers resulted in an increase in the piezoelectric coefficient (d33) from 8 pC/N for pristine PVDF to 11 pC/N, reflecting an approximate 37.5% enhancement. Our findings represent a substantial advancement in the field of all-organic piezoelectric composite material development.