Ag2Q‐Based (Q = S, Se, Te) Silver Chalcogenide Thermoelectric Materials
Ag2Q‐Based (Q = S, Se, Te) Silver Chalcogenide Thermoelectric Materials
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Ag2Q基（Q=S、Se、Te）银硫族化物热电材料
DOI：
10.1002/adma.202110236
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发表时间：
2022
影响因子：
29.4
通讯作者：
Lidong Chen
中科院分区：
文献类型：
--
作者：
Tian‐Ran Wei;P. Qiu;K. Zhao;Xun Shi;Lidong Chen
热电技术为可持续能源利用和可扩展的电力供应提供了一个有前途的解决方案。近年来，Ag2Q - based （Q = S, Se, Te）银硫属化合物作为一种潜在的热电材料被提出，它具有复杂的晶体结构、高载流子迁移率和低晶格热导率，甚至具有优异的可塑性。本文综述了该材料家族的最新进展，从二元化合物到三元和四元合金，涵盖了对多尺度结构和特殊性能的理解，热电性能的优化以及新材料的合理设计。强调了“成分-相结构-热电/机械性能”的相关性。还展示了基于Ag2Q材料的柔性和异型热电原型。提出了进一步认识和优化Ag2Q基热电硫属化合物的几个关键问题和挑战。
Thermoelectric technology provides a promising solution to sustainable energy utilization and scalable power supply. Recently, Ag2Q‐based (Q = S, Se, Te) silver chalcogenides have come forth as potential thermoelectric materials that are endowed with complex crystal structures, high carrier mobility coupled with low lattice thermal conductivity, and even exceptional plasticity. This review presents the latest advances in this material family, from binary compounds to ternary and quaternary alloys, covering the understanding of multi‐scale structures and peculiar properties, the optimization of thermoelectric performance, and the rational design of new materials. The “composition‐phase structure‐thermoelectric/mechanical properties” correlation is emphasized. Flexible and hetero‐shaped thermoelectric prototypes based on Ag2Q materials are also demonstrated. Several key problems and challenges are put forward concerning further understanding and optimization of Ag2Q‐based thermoelectric chalcogenides.