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2022 Fiscal Year Final Research Report

Development of multi-functional magneto-thermoelectric composites using nanostructuring techniques

Research Project

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Project/Area Number 21K20408
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0301:Mechanics of materials, production engineering, design engineering, fluid engineering, thermal engineering, mechanical dynamics, robotics, aerospace engineering, marine and maritime engineering, and related fields
Research InstitutionKyushu Institute of Technology

Principal Investigator

MIURA ASUKA  九州工業大学, 環境エネルギー融合研究センター, 助教 (10911274)

Project Period (FY) 2021-08-30 – 2023-03-31
Keywords熱電変換 / 強磁性体 / ハロゲン化ペロブスカイト
Outline of Final Research Achievements

In this work, the Seebeck-driven transverse thermoelectric generation, one of the magneto-thermoelectric phenomena has been investigated in all-bulk hybrid materials. The bulk Si/bulk Co2MnGa demonstrated an order of magnitude improvement in output power compared to the reported value for bulk Si/Co2MnGa thin film.
We also focused on halide perovskites as thermoelectric materials. In this study, We have developed Cs2SnI6 as an n-type halide perovskite thermoelectric material and the thermoelectric conversion performance was found to be one to two orders of magnitude higher than that of the conventional materials.

Free Research Field

熱工学

Academic Significance and Societal Importance of the Research Achievements

熱エネルギーの有効利用と再利用は、持続的社会の実現に向けた大きな課題である。この課題の解決に向けた候補技術として、温度差から電力を取り出す熱電変換が注目されている。また、熱電変換技術は自己発電可能・小型軽量・高信頼性などの特長を有しているため、近年ではIoT機器用自立電源として期待され盛んに研究が進められている。本研究で得られた材料系や性能向上手法によってカーボンニュートラルに向けた革新的なエネルギー技術の開発に大きく貢献できると期待している。

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Published: 2024-01-30  

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