Effect of cobalt chloride (CoCl2) on the electrical and optical Properties of (PVA-PVP-CoCl2) films

Raya Ali Abid, Majeed Ali Habeb


In this research, many samples have been prepared by adding CoCl2 to the poly vinyl alcohol and poly vinyl pyrrolidon with different weight percentages (o, 3, 6 and 9) wt%.The effect of cobalt chloride concentration on the D.C electrical properties have been investigated. Results showed that the D.C electrical conductivity of such composites increased with increasing of weight percentages of CoCl2, and the activation energy changed with increasing of filler concentration, as well as the effect of addition cobalt chloride on optical properties of poly vinyl alcohol and poly vinyl pyrrolidon have been studied. The absorbance has been recorded in the wavelength (200-1100) nm, also the absorption coefficient, real and imaginary dielectric constant, energy gap, extinction coefficient and refractive index have been determined.

Keywords: electrical properties, optical properties, (PVA-PVP) composites, cobalt chloride.

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ISSN (Paper)2224-719X ISSN (Online)2225-0638

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