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Temperature dependence of conductivity is studied in dark as well as in presence of light in amorphous thin films of Se 90 Ge 10-x In x (x=0, 2, 4, 6, 8 and 10) prepared by vacuum evaporation technique. The dark conductivity increases exponentially with temperature, between 293 and 373K, indicating that the conductivity is a thermally activated process....
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