|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Alloys and Compounds for Thermoelectric and Solar Cell Applications V
||Thermoelectric Properties of PbTe-based Materials Fabricated by a Melt Spinning Method
||Preeyakarn Eaksuwanchai, Ken Kurosaki, Michihiro Ohta, Priyanka Jood, Yuji Ohishi, Hiroaki Muta, Shinsuke Yamanaka
|On-Site Speaker (Planned)
PbTe-based materials are well known as high performance thermoelectric materials because they have large Seebeck coefficient (S) and moderately low lattice thermal conductivity (κlat). However, due to the bipolar conduction, the S decreases and the κlat increases at high temperatures, which greatly decreases the zT. Here, we prepared MTe-PbTe nanocomposites, one example of M is Mg, by a melt-spinning method to suppress the bipolar conduction based on the minority carrier scattering concept. The size and the distribution of MTe in the PbTe matrix were controlled by changing mainly the cooling rate of the melt spinning. The microstructure and the thermoelectric properties of the MTe-PbTe nanocomposites will be presented.
||Planned: Supplemental Proceedings volume