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説明:

The transverse thermoelectric generation and cooling performances in a thermopile module composed of recently developed SmCo5/Bi0.2Sb1.8Te3 artificially tilted multilayers are evaluated quantitatively. When a large temperature difference of 405°C is applied to the SmCo5/Bi0.2Sb1.8Te3-based module, the open-circuit voltage and output power reach 0.51 V and 0.80 W, respectively. The corresponding maximum power density is 0.16 W/cm2, even if the power is normalized by the device area including areas that do not contribute to the power generation, such as epoxy resin, electrodes, and insulating layers. The maximum energy conversion efficiency for our module in this condition is experimentally determined to be 0.92%. Under the cooling operation, the same module exhibits the maximum temperature difference of 9.0°C and heat flow at the cold side of 1.6 W. Although these values are lower than the ideal thermoelectric performance expected from the material parameters due to the imperfections associated with modularization, the systematic investigations reported here clarify a potential of the SmCo5/Bi0.2Sb1.8Te3 artificially tilted multilayers as thermoelectric generators and cooling devices.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: transverse thermoelectric generation, electronic cooling, thermoelectric module, permanent magnet

刊行年月日: 2025-12-31

出版者: Informa UK Limited

掲載誌:

• Science and Technology of Advanced Materials (ISSN: 14686996) vol. 26 issue. 1 2535955

研究助成金:

• NEC Corporation
• Japan Science and Technology Agency JPMJER2201 (Exploratory Research for Advanced Technology)
• Japan Society for the Promotion of Science 24K17610

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1080/14686996.2025.2535955

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更新時刻: 2025-08-18 16:30:47 +0900

MDRでの公開時刻: 2025-08-18 16:21:27 +0900