Electrical Properties of poly Vinyl Alcohol (PVA) doped with Alizarin orang Azo dye thin films prepared by cast method

The electrical properties investigation for poly Vinyl Alcohol (PVA) doped with Alizarin orang Azo dye films was carried out for films prepared by cast method. Conduction processes were analysed through measuring (Current – Voltage) and (Conductivity – temperature) relationships in the voltage and temperature ranges (1-250) V and (293 -333) K respectively. The resistance of the doped films is found to have a negative thermal coefficient.The activation energy at temperature (293-333)K was about (0.74)eV is found from the ohmic region of the dark (current – voltage) characteristic. The conductivity at temperature 293 K was equal to 1.2×10-10(S.cm-1).The deviation from ohm s law has been analysed in term of the available conduction theories, Schotky conduction mechanism was concluded.