Performance Optimization for PbTe-Based Thermoelectric Materials

Frontiers in Energy Research

Xinqi Chen¹  Xing Zhou¹  Chuanhui Wang¹  Tian Wu¹  Lin Zhang¹  Junhui Tao¹  Wei Dai¹  Xinxing Hao² 

[1] Wuhan, China;Wuhan, China;Wuhan, China;

关键词: thermoelectric properties;    nanostructure;    thermal conductivity;    carrier concentration;    doping modification;   

DOI  :  10.3389/fenrg.2021.754532

来源: Frontiers

【 摘 要 】

Thermoelectric material is a kind of functional material that uses the movement of carriers inside a solid to realize the direct mutual conversion of heat and electric energy. It provides a safe, reliable, pollution-free, noise-free, all-solid-state power generation and cooling method and has a wide range of application prospects. Among them, the characteristics of low valence band degeneracy, low effective quality of conduction band, strong phonon non-harmonicity, simple crystal structure and adjustable microstructure have made PbTe-based materials the focus of research in the thermoelectric field. In this review, two latest strategies to improve the thermoelectric properties of PbTe-based materials are discussed, and the challenges for the further development of PbTe-based thermoelectric materials and the prospects for the future are also outlined.

【 授权许可】

CC BY