Abstract
Sodium iodide (NaI) doped polymer polyacrylonitrile (PAN) based gel polymer electrolytes were synthesized with different compositions by solution cast technique. Optical characterizations were performed by UV-visible absorption spectroscopy in the wavelength range of 200-800 nm. Optical transmission, optical absorption, energy bandgap, real and imaginary parts of dielectric constants were studied on the prepared samples. Optical absorption, absorption coefficient, refractive index and extinction coefficient achieved high values for 70% PAN:30% NaI whereas some properties like transmittance and dielectric constant for imaginary parts have achieved minimum values for the same concentration.
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