Effect of Ni nano particles on thermal, optical and electrical behaviour of irradiated PVA AAc films

الملخص EN

Solid electrolyte polymeric materials based on poly(vinyl alcohol-co-acrylic acid) P(VA-co-AAc) containing Ni nano particles were prepared using electron beam induced crosslinking and reduction of Ni ions technique at 30 kGy.

The synthesized composites were analysed by UV-visible spectroscopy, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC).

The activation energy of decomposition of the electrolytes increased with increasing salt concentration.

The optical band energy gap is estimated using UV–visible spectra and it decreases with increasing dopant concentration.

The DSC studies indicate that the dopant changes the thermal behavior of PVA/ AAc like glass transition temperature.

Dielectric behavior was studied in the frequency range of 300 Hz- 5 MHz at room temperature.

The a.c.

conductivity was found to increase with the increase of dopant concentration as well as frequency.

This improved properties of P(PVA/AAc)-Ni nano composite suggested to be used in optoelectronic devices.