Effect of Deformation on the Thermoelectric Properties of Bi2Te3 - Bi2Se3,
Abstract
The effect of an external unilateral pressure up to 250 kgf/sq cm on electrical conductivity, thermal emf and thermal conductivity of n-type Bi2Te3 - Bi2Se3 was investigated over the 300-550K temperature range. Electrical conductivity at 300K increases linearly up to 100 kgf/sq cm, then decreases sharply, but this is not observed at higher temperatures. This may be due to a decrease in activation energy of impurities, with electron scattering as a consequence of new defects at higher pressures. The lattice and electron components of thermal conductivity show a similar maximum at 100 kgf/sq cm. Changes in electrical conductivity and thermal emf, as a function of number of stress cycles were measured and they are presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 20, 1974
- Accession Number
- ADA008253
Entities
People
- A. S. Okhotin
- A. Z. Kuliev
- D. A. Asadov
- K. Sh. Kakhramanov
Organizations
- United States Army Foreign Science and Technology Center