| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1499325 | Scripta Materialia | 2012 | 4 Pages |
Abstract
A chemical route combined with a subsequent spark plasma sintering technique was successfully utilized to synthesize n-type Se-substituted ternary Bi2Te3−xSex (0 ⩽ x ⩽ 0.6). We investigated the effect of Se doping on the thermoelectric properties of the Bi2Te3 nanostructured bulk materials. The results indicate that Se doping is an efficient way to reduce the thermal conductivity as compared to that of Bi2Te3 presumably due to enhanced (dopant) scattering of phonons. The maximum thermoelectric figure-of-merit, ZT, is 0.7 at 485 K for Bi2Te2.55Se0.45.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
D. Li, X.Y. Qin, Y.C. Dou, X.Y. Li, R.R. Sun, Q.Q. Wang, L.L. Li, H.X. Xin, N. Wang, N.N. Wang, C.J. Song, Y.F. Liu, J. Zhang,