Electrical conductivity of semiconducting V 2 O 5 -GeO 2 glasses

Abstract

The DC conductivity of semiconducting vanadium germanate glasses of compositions in the range of 40-70 mol(%)V₂O₅has been measured in the temperature region 300-530 K. Measurements have been made on unannealed samples and some samples annealed at 300°C. Annealing the samples at temperatures of about 300°C causes the appearance of a crystalline phase resulting in an increase of conductivity. The crystalline temperature has been estimated from the conductivity data for unannealed samples. These seem to be in reasonable agreement with the corresponding results found in the literature.