Relaxation of silver ions in superionic borate glasses

We have investigated the conductivity spectra at different temperatures for the AgI doped silver borate superionic glasses and estimated the concentration of mobile Ag+ ions as a function of temperature and composition. It is observed that the concentration of mobile Ag+ ions is independent of temperature and only a fraction of the total Ag+ ions in these glasses participate in the diffusion process. The increase in conductivity due to the insertion of AgI can be attributed to the increase in hopping rate of Ag+ ions which is supported by FT-IR results.