热电效应
热电材料
材料科学
热导率
工程物理
纳米技术
电
微观结构
热电发电机
复合材料
电气工程
工程类
热力学
物理
作者
Xiaoyuan Zhou,Yanci Yan,Xu Lu,Hangtian Zhu,Xiao Han,Gang Chen,Zhifeng Ren
标识
DOI:10.1016/j.mattod.2018.03.039
摘要
Thermoelectric materials can be used in direct conversion of heat to electricity and vice versa. The past decade has witnessed the rapid growth of thermoelectric research, targeting high thermoelectric performance either via reduction in the lattice thermal conductivity or via enhancement of the power factor. In this review, we firstly summarize the recent advances in bulk thermoelectric materials with reduced lattice thermal conductivity by nano-microstructure control and also newly discovered materials with intrinsically low lattice thermal conductivity. We then discuss ways to enhance the electron transport abilities for achieving higher power factor by both novel and traditional methods. Finally, we highlight the recent development in single-crystal thermoelectric materials. These strategies are successful in synergistically manipulating the thermal conductivity and electron transport properties, which have significantly advanced thermoelectric performance on materials. For device applications on these high-performance materials, new opportunities may arise though stability, electrode contacts, mechanical properties, and other problems need to be solved in the near future.
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