Electrical properties of AgI–Ag2O–V2O5–P2O5 glasses
Abstract Mixed conductive silver vanadate–phosphate glasses were prepared and their electrical properties were studied. Compositions of the glasses were characterized by parameters: x (AgI content) and r =[Ag 2 O]/[V 2 O 5 +P 2 O 5 ]. Total conductivity σ t ( x , r =constant) of a series of samples with fixed r values exhibited minima when plotted vs. x . The conductivity minima were accompanied by maxima of apparent activation energy E t ( x , r =constant). The observed dependencies were attributed to the ion–polaron effect (IPE), i.e. to electrostatic attraction between mobile species: electrons (polarons) and Ag + ions.