The preparation of cadmium phosphate and cadmium zinc phosphate glasses and their electrical and optical properties

The preparation of a range of glasses based on CdO-P₂O₅ and CdO-ZnO-P₂O₅ is described and data are reported on density, electrical conductivity and optical absorption. The electrical conduction is electronic rather than ionic and is due to hopping between localized states. The optical absorption is due to forbidden indirect electronic transitions.