Electrical transport properties of molybdenum tellurite glassy semiconductors
- 1 January 1990
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Part B
- Vol. 61 (1) , 87-96
- https://doi.org/10.1080/13642819008208653
Abstract
The first measurements are reported of the electrical conductivity of semiconducting molybdenum tellurite glasses of various compositions over the temperature range 100-500 K. The electrical data have been analysed in the light of polaronic conduction models. The analysis shows that the adiabatic hopping theory is most appropriate for describing the polaronic conduction in the high-temperature region. However, in the intermediate temperature range, variable-range hopping dominates. It is shown that the glass-forming oxide, rather than the transition-metal oxide, greatly affects the conduction mechanism.Keywords
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