Piezoelectricity evaluation of nanofibers membrane electrospun from PVDF solution for sensor application

The piezoelectricity of the electrospun nanofibers membranes from Polyvinylidene fluoride (PVDF) dispersion were evaluated aiming at sensor pressure and energy harvesting application. A test setup was mounted and an adapted device was specially produced to measure the piezoelectricity of these membranes. The maximum signal measured for 1 Hz excitation was 160 mV. The Raman and DXR analyses confirm the presence of b phase, responsible for PVDF nanofibers piezoelectricity. These promising results confirm the applicability of the membranes in sensor devices.