A High Performance Ag Alloyed Nano-scale n-type Bi2Te3 Based Thermoelectric Material
Paper in proceeding, 2015
A silver alloyed n-type bismuth telluride (Bi2Te3) thermoelectric (TE) bulk material with nano crystalline structure was studied and characterized in this paper. The Bi2Te3 nanopowders used in this study were first fabricated via a patented explosion based process. Then, the various concentrations of Ag nanoparticles (0-20 wt. %) were added into the Bi2Te3 nanopowders in order to increase the electrical conductivity. Combining the benefits of high electrical conductivity (1.51x10(5) S.m(-1)) and low thermal conductivity (0.441 W.m(-1).K-1), the dimensionless figure of merit (ZT value) of 1.48 for this n-type Bi2Te3 TE material is achieved at 300 K temperature.
Bismuth-Telluride
Thermoelectric
Nano-scale
Nanoparticles
Silver
Author
Si Chen
Chalmers, Applied Physics, Electronics Material and Systems
Nikolaos Logothetis
Chalmers, Applied Physics, Electronics Material and Systems
L. Ye
SHT Smart High Tech AB
Johan Liu
Chalmers, Applied Physics, Electronics Material and Systems
Materials Today: Proceedings
2214-7853 (eISSN)
Vol. 2 2 610-619Subject Categories (SSIF 2011)
Nano Technology
DOI
10.1016/j.matpr.2015.05.083