Electrical Properties of Silver Doped As-Se Glasses

Abstract

The electrical properties of silver doped As-Se glasses up to 1.0 atomic % have been studied. The d.c. conductivity of the doped glasses is represented by a single activation energy which is smaller than that of the parent glass. The d.c. conductivity at room temperature increases with increase of silver content. However the glass containing smaller amount of silver is less conductive than that of the parent glass above a certain temperature. Pressure dependence of the conductivity shows electronic and ionic characteristics. A dielectric relaxation which is closely related to the d.c. conduction is found. Above results can be related to the formation of defects which contain silver.