Chalcogenide glass conductivity

In conclusion, mention should be made of glass electrodes exhibiting mixed, ionic and electronic conductances. A chalcogenide glass (28% Ge, 60% Se, 12%... 

The presence of a maximum on the TSDC curve, which is determined by equilibrium conductivity, was also confirmed in the extensive article by Agarwal (in particular, for chalcogenide glasses). Moreover, it was shown that the TSDC curves may contain more than one peak, the position and amplitude of which depends on... 

In contrast, in most ion-selective membranes the charge conduction is done by ions. Thus, a mismatch between the charge-transfer carriers can exist at the noble metal/membrane interface. This is particularly true for polymer-based membranes, which are invariably ionic conductors. On the other hand, solid-state membranes that exhibit mixed ionic and electronic conductivity such as chalcogenide glasses, perovskites, and silver halides and conducting polymers (Lewenstam and Hulanicky, 1990) form good contact with noble metals. 

Systematic transport studies of Li ions in oxide and chalcogenide glasses of the general formula, xLi2X (l-x)SiX2 (X = O, S or Se) by Pradel and Ribes (1994), revealed that conductivities in oxide glasses are significantly low. The d.c. conductivities were found to vary as yfx" and this behaviour found support in Monte Carlo computer simulation. Since... 

Invited Talk, "Preparation and Characterization of New Proton Conducting Chalcogenide Glasses and Glass-Ceramics," University of Muenster, Muenster, Germany, July, 2002. 

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