Record Details
A thermoelectric study of doped liquid thallium-tellurium alloys
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | A thermoelectric study of doped liquid thallium-tellurium alloys |
| Names |
Field, Marshall B.
(creator) Cutler, Melvin (advisor) |
| Date Issued | 1966-11-03 (iso8601) |
| Note | Graduation date: 1967 |
| Abstract | Electrical resistivity and thermoelectric power measurements have been made over the temperature range of 450° to 600°C on n-type liquid thalliurn-tellurium solutions. Liquids with compositions from 61.5 to 72.0 atomic percent thallium were studied. In addition, alloys of some of the three component thallium-teIlurium solutions containing small amounts of silver, cadmium, indium, tin (n-type doping impurities), or antimony (p-type doping impurity) were studied. The results suggest that each added atom of these doping elements contributes some fractional number of a donor (or acceptor) level. In addition, some measurements were made in a fused silica cell at temperatures up to 875°C. The data are analyzed using a conventional solid state transport theory, This analysis yields the relative concentration and electron mobility as a function of composition. P-n transitions in the Seebeck coefficient at high temperature for some near intrinsic thallium-tellurium solutions show that the electron mobility is larger than the hole mobility at high temperatures. Other results included estimates of the activation energies for holes in n-type solutions at two compositions, and the electrical determination of a liquidus in part of the phase diagrarn of the thallium-telluriurn binary system. |
| Genre | Thesis/Dissertation |
| Topic | Thallium compounds |
| Identifier | http://hdl.handle.net/1957/47651 |
