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Abstract

AC electrical properties were studied using the AC impedance technique. The electrical properties of thin films made of poly (ethylene oxide) (PEO) dispersed with dopants fixed amount of carbon black (0.1wt. %) were used in this study. The prepared films by casting method have been electrically. The present study has studying the variation of AC electrical conductivity with frequency in the range (3 kHz - 5 MHz) for PEO with doped 0.1wt. % carbon black as compared to that case of the un doped PEO film, and determined of some physical quantities and parameters as AC conductivity, impedance, dielectric constant. The observed values of the impedance (Z), dielectric constant (e'), dielectric loss (e) , and AC-conductivity (sAC) showed frequency and temperature. It was found that the dielectric constant and dielectric loss of the prepared thin films increase with doped (0.1wt. %) carbon black (CB) complexes and that it decrease with frequency according to polarization processes. The AC conductivity increases with doped carbon black, temperature and frequency.