Thermoelectric properties of Tl2SnTe5 and Tl2GeTe5
- 21 June 1999
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 74 (25) , 3794-3796
- https://doi.org/10.1063/1.124182
Abstract
We report on the thermoelectric properties of two ternary tellurides with known crystal structures. Both compounds have a very low lattice thermal conductivity. Tl2SnTe5 appears to have a p-type figure of merit about the same as that of Bi2Te3, the best thermoelectric material among binary compounds. We have synthesized mainly polycrystalline samples, but a few small crystals have been grown and used for electrical measurements. Prospects for further improvement of these materials are discussed.Keywords
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