|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Alloys and Compounds for Thermoelectric and Solar Cell Applications IX
||Achieving Enhanced Thermoelectric Performance in Multi-phase Materials
||Qingyu Yan, Zhongzhen Luo, Yubo Luo
|On-Site Speaker (Planned)
Thermoelectric (TE) materials are capable of direct solid state conversion of heat to electricity without moving parts or gas emissions, and show a great potential for increasing energy utilization efficiency and reducing greenhouse gas emissions. Controlling the charge carrier concentration, lattice defects and electronic band structures are very important to enhance the thermoelectric properties of materials. This can be achieved in multi-phased material system. We will show some examples for the enhancing and optimizing the performance of PbX (X= S, Se, Te) based thermoelectric materials by incorporation with other phases. We will also discuss some work on control the crystal orientation of polycrystalline SnSe2 samples to improve its charge transport behavior and optimize thermoelectric properties. Lastly, we will discuss on study on a new TE material, Sb2Si2Te6 with small amount of Si2Te3 secondary phase.