Synthesis and characterization of p-Type Pb0.5Sn0.5Te thermoelectric power generation elements by mechanical alloying
Document Type
Article
Publication Date
11-10-2009
Department
Department of Materials Science and Engineering
Abstract
A mechanical alloying (MA) process to transform elemental powders into solid Pb 0.5Sn 0.5Te with thermoelectric functionality comparable to melt-alloyed material is described. The room-temperature doping level and mobility as well as temperature-dependent electrical conductivity, Seebeck coefficient, and thermal conductivity are reported. Estimated values of lattice thermal conductivity (0.7 W m -1 K -1) are lower than some reports of functional melt-alloyed PbSnTe-based material, providing evidence that MA can engender the combination of properties resulting in highly functional thermoelectric material. Though doping level and Sn composition have not been optimized, this material exhibits a ZT value > 0.5 at 550 K.
Publication Title
Journal of Electronic Materials
Recommended Citation
Lalonde, A.,
&
Moran, P. D.
(2009).
Synthesis and characterization of p-Type Pb0.5Sn0.5Te thermoelectric power generation elements by mechanical alloying.
Journal of Electronic Materials,
39(1), 8-14.
http://doi.org/10.1007/s11664-009-0989-7
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/5082