Abstract
The transference numbers of the species responsible for current transport, in GeS 2Ag 2SAgI glasses, have been determined. Tubandt's method shows that the transference number of the Ag cation is equal to 1 (to within 2%). By electrochemical semipermeability flux measurement, the electronic transference number was estimate to be less than 10 −8, and by tringular voltammetry, the transference number of the iodide anion at approximately 10 −5. Triangular voltammetry can also be used to measure the redox stability range, which is about 3 V for current densities of 0.1 mA/cm 2. This high value is due to the low mobility of the anions below the glass transition temperature.
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