We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Conductivity Effects in Bi<sub>2</sub>TeO<sub>5</sub> Single Crystals.
- Authors
AGARKOV, K. V.; SADOVSKAYA, L. YA.
- Abstract
The current-voltage characteristics (I-V) of non-stoichiometric bismuth tellurite crystals were studied in a range of temperatures from 150°C to 350°C and fields up to 2.5 kV/cm with asymmetric contacts (In-Ga eutectic and Na2SiO3). The I-V curves and observed monopolar injection are described by the approximation of space charge limited currents. In the composition of 47% Bi2O3-53% TeO2 electronic conduction is prevailed. In the composition 43% Bi2O3-57% TeO2 the conductivity is contributed by electrons and holes. The spectrum of local states in the band gap of the studied crystals is quasicontinuous, which cannot be described by models of a discrete or exponential distribution.
- Subjects
THERMAL conductivity; CURRENT-voltage characteristics; NONSTOICHIOMETRIC compounds; BISMUTH compounds; ELECTRONIC connectors
- Publication
Acta Physica Polonica: A, 2018, Vol 133, Issue 4, p940
- ISSN
0587-4246
- Publication type
Article
- DOI
10.12693/APhysPolA.133.940