Recently, CsBi4Te6 has been reported as a high-performance thermoelectric material for low temperature applications with a higher thermoelectric figure of merit (ZT ∼ 0.8 at 225 Kelvin) than conventional Bi2-xSbxTe3-ySey alloys at the same temperature. First-principle electronic structure calculations within density functional theory performed on this material give an indirect narrow-gap semiconductor. Dispersions of energy bands along different directions in k-space display large anisotropy and multiple conduction band minima close in energy, characteristics of a good thermoelectric material.
|Journal||Proceedings - IEEE International Symposium on Circuits and Systems|
|Publication status||Published - Jan 1 2001|
|Event||IEEE International Symposium on Circuits and Systems (ISCAS 2001) - Sydney, NSW, Australia|
Duration: May 6 2001 → May 9 2001
ASJC Scopus subject areas
- Electrical and Electronic Engineering