摘要
We investigate the DC transport properties of 60V_(2)O_(5)-5P_(2)O_(5)-(35-x)B_(2)O_(3)-xDy_(2)O_(3)(x=0.4,0.6,0.8,1.0 and 1.2 mol%)glasses as function of temperature which were prepared using the conventional melt-quenching method.These glasses are characterised by thermo gravimetric-differential thermal analysis(TG-DTA).Activation energy(E_(DC))is obtained from Arrhenius plots of temperature-dependent DC conductivity,and it is found to be 0.30 eV for high conducting glass.In order to understand the role of Dy_(2)O_(3) in these glasses,the density and molar volume are investigated.The results show that molar volume of the glass increases with the increasing of Dy2O_(3) concentration.The ionic conductivity is found to be dominant over the electronic conductivity and varies between 82%and 96%.
