The electrical conductivity in Se70 Te30-x Inx (0an exponential thermally activated behavior with single conduction mechanism
for bulk and thin films. Film conductivities were found to be about three orders
of magnitude lower than those of their bulk counterparts bulk samples. An
obvious decrease in the conductivity on incorporation of indium to the binary
Se70Te30-x film was observed. An experimental correlation between the
activation energy and the pre-exponential factor was observed indicating the
validity of Meyer-Neldel rule in the studied samples. Huge difference in σ0
values was obtained and hence σ0 may not directly related to the microscopic
conductivity.