Synthesis and electrical properties solid solution of the (1-x)BiO1.5-(x/4)Nb2Te2O9 (x=0.1,0.2) type δ-Bi2O3

Polycrystalline samples of (1-x)bio1.5-(x/4)nb2te2o9 (x=0.1,0.2) type δ-bi2o3 were synthesized by a solid reaction and characterized by x ray diffraction. the electrical properties of this new phase were studied using electrical impedance spectroscopy in the temperature range from 200°c to 700°c. various impedance model including constant phase element and warburg impedances have been used to interpret the nyquist representations of electrical analyses. the electrical conductivity was determined to be 1.88165.10-3 scm-1 for x=0.1 and 1.14874.10-5 scm-1 for x=0.2 at the temperature 700°c. the activity energy determinate by arrhenius equation is 0.52ev and 0.48ev for x=0.1 and x=0.2 respectively.