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热电材料可以实现热能和电能的直接相互转换,在温差发电和固态制冷等领域具有重要应用,受到了学术界和工业界的广泛关注。本工作首先简述了热电材料研究的相关背景,然后根据材料工作的温度,对室温附近、中温区以及高温区一些典型热电材料的最新研究进展进行了概述,重点介绍了材料的晶体结构特点和性能优化策略。在此基础上阐述了热电能量转换技术在材料、器件和研发模式等方面所面临的困难和挑战。最后,对热电材料未来的发展方向提出了展望。
Abstract：Thermoelectric materials(TE), which enable the direct energy conversion between heat and electricity, have attracted global attention in both academic and industrial sections, due to their significant applications in power generation and refrigeration. In this review, the research background of thermoelectrics will be introduced first, while the recent progress on several widely studied thermoelectric materials will be overviewed according to their working temperatures. In particular, their crystal structure characteristics and performance optimization strategies will be highlighted. The difficulties and challenges faced in thermoelectric technology, in terms of materials development, device fabrication and R&D modes, will be discussed. Finally, the prospect and expectation for the further development of thermoelectrics will be put forward.
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基本信息:
DOI：10.14062/j.issn.0454-5648.20200925
中图分类号:TB34
引用信息:
[1]徐庆,赵琨鹏,魏天然等.热电材料的研究现状与未来展望[J].硅酸盐学报,2021,49(07):1296-1305.DOI:10.14062/j.issn.0454-5648.20200925.
基金信息:
国家自然科学基金(2018YFB0703600)