Superionic glasses in the AgI-Ag2O-TeO2 system were investigated by using various techniques. A comparison of conductivities of the present glasses, with those of glasses in other systems was carried out. The results revealed that the optimum value of the room-temperature conductivity was of the order of 10-2S/cm at about 60mol%AgI, for all of the superionic systems considered; regardless of their composition or type. The highest conductivity, at about 60mol%AgI, was related to the creation of the maximum number of pathways which favoured Ag+-ion transport. The formation of crystalline phases from AgI at higher concentrations was considered to be the main reason for a decrease in the conduction of AgI-rich glasses. Specific structural models were proposed in order to explain the Ag+ ion transport mechanism in AgI-Ag2O-TeO2 glasses.

Silver Ion Transporting Mechanism in Superionic Conducting AgI-Ag2O-TeO2 Glasses. G.El-Damrawi: Journal of Physics - Condensed Matter, 1999, 11[33], 6385-94