ELECTRICAL-CONDUCTIVITY AND THERMOELECTRIC-POWER OF SILVER IODODICHROMATE FAST-ION CONDUCTING ELECTROLYTES

Fast ion conducting solid electrolytes are becoming increasingly impor tant owing to their application in solid state ionic devices. The pres ent work deals with the silver ion conducting x AgI-(1-x)Ag2Cr2O7 elec trolyte system. These electrolytes have been characterised by X-ray di ffraction, electrical conductivity, electronic conductivity and thermo electric power techniques. A high ionic conductivity of the order of 1 0(-3) S/cm has been observed for the composition mol% 80 AgI-20 Ag2Cr2 O7, at room temperature. The electronic conductivity of this electroly te is three orders of magnitude lower than the ionic conductivity.