We report an experimental study on structural, electrical and dielectric properties of electrolytic system composed of polymer poly(ethylene oxide) (PEO) and nematic-type liquid crystals E8 (at composition ratio PEO:E8 = 70:30 wt.%), being of interest for practical applications in rechargeable mini-batteries and organic electronics. Flexible thin films of this organic electrolyte with a thickness of ∼ 0.1 mm were characterized by frequency spectra of complex electrical impedance and dielectric function. As compared to the host polymer PEO, a significant improvement of both electrical transport and dielectric properties of PEO-E8 composite electrolyte was achieved. The obtained results were compared with the corresponding values and characteristics measured for advanced metal-organic solid-state polymer electrolytes based on PEO or blends of PEO with polyvinylpyrrolidone (PVP) - ionic polymer electrolyte complexes from PEO/PVP doped with inorganic ionic compound and currently trending nanoparticles.
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