Abstract

This article describes the experimental results of the polyvinylidene fluoride (PVDF)/Potassium nitrate (KNO3), composite films. To explain the nature of ferroelectric phase (phase III) of potassium nitrate (KNO3), we have prepared the composite films of poly (vinylidene fluoride)/potassium nitrate in the relative amount of 50–50 wt.% by using simple melt pressing. The results of the temperature dependence of the capacitance and conductance of the composite films have been carried out. The current vs. voltage (I-V) characteristics exhibit the polarization current, which is the nature of ferroelectricity in the composite films. Capacitance vs. voltage (C-V) measurements have been performed to identify the ferroelectric properties of the composite films.

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