Promising and Eco‐Friendly Cu2X‐Based Thermoelectric Materials: Progress and Applications,Advanced Materials

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Promising and Eco‐Friendly Cu2X‐Based Thermoelectric Materials: Progress and Applications
Advanced Materials ( IF 27.4 ) Pub Date : 2020-01-15 , DOI: 10.1002/adma.201905703
Wei‐Di Liu ₁ , Lei Yang ₂ , Zhi‐Gang Chen ₃ , Jin Zou _{1,

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Affiliation

Due to the nature of their liquid‐like behavior and high dimensionless figure of merit, Cu₂X (X = Te, Se, and S)‐based thermoelectric materials have attracted extensive attention. The superionicity and Cu disorder at the high temperature can dramatically affect the electronic structure of Cu₂X and in turn result in temperature‐dependent carrier‐transport properties. Here, the effective strategies in enhancing the thermoelectric performance of Cu₂X‐based thermoelectric materials are summarized, in which the proper optimization of carrier concentration and minimization of the lattice thermal conductivity are the main focus. Then, the stabilities, mechanical properties, and module assembly of Cu₂X‐based thermoelectric materials are investigated. Finally, the future directions for further improving the energy conversion efficiency of Cu₂X‐based thermoelectric materials are highlighted.

中文翻译：

具有前景和环保的基于Cu2X的热电材料：进展和应用

由于其类似于液体的行为和无量纲的高品质因数，基于Cu ₂ X（X = Te，Se和S）的热电材料引起了广泛的关注。高温下的超离子性和Cu紊乱会极大地影响Cu ₂ X的电子结构，进而导致温度依赖的载流子传输特性。在此，总结了提高Cu ₂ X基热电材料热电性能的有效策略，其中主要的重点是适当地优化载流子浓度和最小化晶格热导率。然后，Cu ₂的稳定性，力学性能和模块组装对基于X的热电材料进行了研究。最后，重点介绍了进一步提高基于Cu ₂ X的热电材料的能量转换效率的未来方向。

更新日期：2020-02-24

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