REVERSIBLE NONLINEAR ELECTRICAL SWITCHING IN CDTES-DOPED GLASS

The electrical switching behaviour of CdTexS1-x-doped borosilicate gla ss was studied by determining the d.c. current-voltage characteristics using a current source. The I-V characteristic is non-linear for high current density, leading to deviation from Ohm's law. The experimenta l data have been analysed assuming that the increase in the glass cond uctivity is dominated by the Joule effect. The theoretical model used is in good agreement with the experimental results.