Electrical Conductivity Studies in Polycrystalline (CuSe)1-x Sex

This studies are directed towards measuring the electrical conductivity of the (cuse)1-xsex metal chalcogenide semi-conductor composites, with different stoichiometric compositions of se (x = 0, 0.2, 0.4, 0.5, 0.6, 0.8,1.0) in bulk form. the electrical conductivity measurement was carried out at room temperature, using the parallel plate technique. the (cuse)1-xsex composites were prepared using solid state reaction, by varying the ratio of cuse:se, in the reaction mixture. the electrical conductivity of (cuse)1-xsex was determined to be in the range of 1.17 x 10-8 to 1.02 x 10-1 s/cm. the finding indicated that the electrical conductivity value tended to decrease as the concentration of se increased. the effect of the concentration of se, on electrical conductivity of (cuse)1-xsex composites, is discussed in this paper.