热电冷却
热电效应
热导率
材料科学
热电材料
热电偶
光电子学
作者
Huifang Luo,Xin Li,Yuxiang Wang,Yeqing Jin,Mingjia Yao,Jihui Yang
标识
DOI:10.1038/s41524-022-00887-4
摘要
Abstract Active Peltier cooling enables Peltier heat transfer in addition to the traditional Fourier thermal conductance, which is useful in some special applications, such as the microthermostats. From the material wise, however, the study on the active Peltier cooling materials is rare. We carried out a high-throughput workflow to screen out 5 room-temperature active Peltier cooling materials, GaSbLi 2 , HgPbCa 2 , SnTiRu 2 , GeYbLi 2 , and GeTiFe 2 , from 2958 Heusler materials. All the five materials are semimetals or very narrow band gap systems with high electrical conductivity. Some of these materials have relatively large Seebeck coefficients due to the band asymmetry. Their effective thermal conductivity κ eff s, which are the summation of active Peltier thermal conductivity and passive thermal conductivity, are all greater than Cu at the room temperature and Δ T = 1 K. The present work gives a possible way to search active cooling Peltier materials for the applications of precise temperature control.
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