Constructing of highly porous thermoelectric structures with improved thermoelectric performance
Constructing of highly porous thermoelectric structures with improved thermoelectric performance
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DOI：
10.1007/s12274-021-3555-0
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发表时间：
2021-05
期刊：
影响因子：
9.9
通讯作者：
Peilei He;Yue Wu
中科院分区：
文献类型：
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作者：
Peilei He;Yue Wu
由于每年全球消耗的能源中有60%以上未被利用并成为废热，因此需要高效的废热发电技术将废热转化为电力。热电技术可以将废热直接转化为电能，是一种很有前途的能量回收方法。热电技术已经存在了几十年，但由于效率低，其使用受到限制。纳米技术的最新进展使热电性能的改善成为可能，这为热电材料在工业上的应用开辟了可行性。本文综述了近年来在提高热电材料孔隙率方面的研究进展，从原子尺度提高到微米尺度，从而提高热电材料的品质因数。
As more than 60% of worldwide consumed energy is unused and becomes waste heat every year, high-efficiency waste heat to power technologies are highly demanded for the conversion of wasted heat to electricity. Thermoelectrics which can convert the wasted heat directly into electricity represent a promising approach for energy recovery. Thermoelectric technology has existed for several decades, but its usage has been limited due to low efficiencies. Recent advances in nanotechnology have enabled the improving of thermoelectric properties which open up the thermoelectrics’ feasibility in industry. In this paper, we present an overview of recent progress in increasing the porosity of thermoelectric materials from atomic scale to microscale, leading to the enhancement of figure of merit.