Analysis of Electrical and Capacitance–Voltage of PVA/nSi

Abstract

The present study examined polyvinyl alcohol, PVA, in its pure form without any additives. We investigated its application as a Schottky barrier device, which demonstrates the novelty of this research. We report the synthesis, current–voltage (I–V) and capacitance–voltage (C–V) characteristics, dielectric properties, x-ray diffraction of PVA/nSi. Several parameters, including the ideality factor (n), series resistance (Rs), barrier height (Φb), the saturation current (I0), and shunt resistance (Rsh) were estimated. It was found that the n values decrease with increasing temperature, setting the enhancement of the device features. (Φb) values tend to increase with temperature rise. Frequency, voltage and temperature dependence of electric modulus (( $$ M^{\prime}\& M^{\prime\prime} $$ ) was investigated, showing that $$ \left( {M^{\prime}} \right) $$ decreases with temperature (T) while the values of $$ (M^{'} $$ ) are increased with frequency (f). But at low frequencies $$ (M^{'} ) \,{\text{rises }}\,{\text{when }}\, T\, {\text{is }}\,{\text{raised}}. \,{\text{While }} $$ ( $$ M^{\prime\prime}) $$ tends to be reduced with increasing T at (f) = 10 and 103 Hz, with increases at (f) = 2 × 107 Hz. We observed semicircles in the Cole–Cole plots where the radii of curvature increased with temperature and voltage. I–V characteristic at different temperatures (298–423 K)