SnSe: The rise of the ultrahigh thermoelectric performance material

IF 1.7 4区 化学 Bulletin of the Korean Chemical Society Pub Date : 2024-01-29 DOI:10.1002/bkcs.12821
Taeshik Kim, Hyungseok Lee, In Chung
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Abstract

Thermoelectric materials can generate electric power from dissipating heat without releasing any undesirable chemicals. They thus can increase global energy efficiency and reduce the use of fossil fuels that are a major resource for generating electric energy, thereby concurrently addressing energy and environmental crises seriously threatening humanity. Increasing a thermoelectric figure of merit, ZT, of materials has been a prime goal in thermoelectrics because an efficiency of thermoelectric power generation has been low until very recently. The recent development of ultrahigh thermoelectric performance in polycrystalline SnSe-based materials is one of the most prominent breakthroughs in the history of thermoelectrics. They show an exceptionally high ZT of ~3.1 at 783 K and average ZT of ~2.0 from 400 to 783 K, which are the highest for any bulk thermoelectric systems. Here we review the recent advances in SnSe thermoelectrics, greatly changing the paradigm of studies and applications of thermoelectric technology.

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SnSe:超高热电性能材料的崛起
热电材料可以在不释放任何不良化学物质的情况下通过散热发电。因此,热电材料可以提高全球能源效率,减少作为发电主要资源的化石燃料的使用,从而同时解决严重威胁人类的能源和环境危机。提高材料的热电功勋值 ZT 一直是热电领域的首要目标,因为直到最近,热电发电的效率一直很低。多晶锡基材料的超高热电性能是热电史上最突出的突破之一。它们在 783 K 时显示出 ~3.1 的超高 ZT 值,在 400 到 783 K 之间显示出 ~2.0 的平均 ZT 值,是所有块状热电系统中最高的。在此,我们回顾了 SnSe 热电技术的最新进展,这些进展极大地改变了热电技术的研究和应用模式。
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来源期刊
Bulletin of the Korean Chemical Society
Bulletin of the Korean Chemical Society Chemistry-General Chemistry
自引率
23.50%
发文量
182
期刊介绍: The Bulletin of the Korean Chemical Society is an official research journal of the Korean Chemical Society. It was founded in 1980 and reaches out to the chemical community worldwide. It is strictly peer-reviewed and welcomes Accounts, Communications, Articles, and Notes written in English. The scope of the journal covers all major areas of chemistry: analytical chemistry, electrochemistry, industrial chemistry, inorganic chemistry, life-science chemistry, macromolecular chemistry, organic synthesis, non-synthetic organic chemistry, physical chemistry, and materials chemistry.
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