Preparation and Electrical Properties of the Glasses in the Pseudoternary System CuI-Cu<sub>2</sub>MoO<sub>4</sub>-Cu<sub>3</sub>PO<sub>4</sub>

Abstract

Cuprous ion-conducting glasses were prepared in the pseudoternary system CuI-Cu2MoO4-Cu3PO4. These glasses had high ionic conductivities of 10-3 to 100 Sm-1 at room temperature. The infrared spectra showed that these glasses were composed of Cu+, I-, monomer MoO42-, and monomer PO43- ions, and classified as “ionic glasses” containing one type of cations and three different types of anions. The conductivity of these glasses increased with an increase in the amount of Cu+ ions which were generated from the CuI component. Substitution of PO43- anions for MoO42- anions caused a decrease in the conductivity of the glasses containing a given CuI content. The variation of the conductivity mentioned above can be explained in terms of the valence of oxo-anions contained in these glasses.