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J-GLOBAL ID：200901062808610497   Update date: Sep. 25, 2024

Hayashi Kei

ハヤシ ケイ | Hayashi Kei
Affiliation and department：
Tohoku University Department of Applied Physics, Graduate School of Engineering

About Tohoku University Department of Applied Physics, Graduate School of Engineering


Job title： Associate Professor
Homepage URL  (2)： https://cristal.apph.tohoku.ac.jp/allmember/hayashi/ ,  https://scholar.google.com/citations?user=hMSwiIQAAAAJ&hl=en
Research field  (4)： Inorganic compounds/materials chemistry ,  Composite materials and interfaces ,  Thin-film surfaces and interfaces ,  Crystal engineering
Research keywords  (5)： semiconductors ,  Pyroelectric materials ,  Photovoltaic materials ,  Thermoelectric materials ,  Energy harvesting
Research theme for competitive and other funds  (22)：
  • 2023 - 2027 低熱伝導と高強度を両立する鉄基ハーフホイスラー熱電材料のボンドエンジニアリング
  • 2022 - 2025 Development of single-crystalline thermoelectric materials with low thermal conductivity via pressure-induced point-defects engineering
  • 2020 - 2025 自動車排熱・産業排熱を利用した大規模熱電発電のための大型単結晶熱電材料の開発
  • 2020 - 2023 Achieving minimum thermal conductivity in higher manganese silicide-based thermoelectric materials through controlling of incommensurate nano-sized domains
  • 2017 - 2020 Development of metal/Mg2Si composite materials with high thermoelectric efficiency
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Papers (116)：
  • Jincheng Yu, Xiaodong Liu, Haihua Hu, Yilin Jiang, Hua-Lu Zhuang, Hezhang Li, Bin Su, Jing-Wei Li, Zhanran Han, Zhengqin Wang, et al. Ultralow thermal conductivity and high ZT of Cu2Se-based thermoelectric materials mediated by TiO2-n nanoclusters. Joule. 2024
  • Y. Shimizu, K. Hayashi, Y. Miyazaki. Sr-Substitution Effects on Crystal Structure and Thermoelectric Properties of Misfit Layered Cobaltate, [Ca2CoO3] CoO2. Solid State Sciences. 2024. 152. 107536-107536
  • Hezhang Li, Kei Hayashi, Zhicheng Huang, Hiroto Takeuchi, Gakuto Kanno, Jing-Feng Li, Yuzuru Miyazaki. Enhancement of the thermoelectric performance of half-metallic full-Heusler Mn2VAl alloys via antisite defect engineering and Si partial substitution. Journal of Materiomics. 2024. 10. 2. 511-519
  • Qiang Zhang, Jiadang Li, Nagendra S. Chauhan, Lifei Wang, Zhicheng Huang, Wenhao Fan, Kei Hayashi, Shaoping Chen, Jianfeng Fan, Yuzuru Miyazaki. Graphene-assisted synergistic electronic DOS modulation and phonon scattering to improve the thermoelectric performance of Mg3Sb2-based materials. Journal of Materials Chemistry A. 2023. 11. 35. 18811-18819
  • Jing-Wei Li, Weishu Liu, Wei Xu, Hua-Lu Zhuang, Zhijia Han, Feng Jiang, Peng Zhang, Haihua Hu, Hanbin Gao, Yilin Jiang, et al. Bi-Deficiency Leading to High-Performance in Mg3(Sb,Bi)2-Based Thermoelectric Materials. Advanced Materials. 2023. 35. 23. 2209119
ｍore...
MISC (36)：
  • Kei Hayashi. Development of Single Crystals with High Thermoelectric Performance by Introducing Lattice Defects. Journal of the Japanese Association for Crystal Growth. 2023. 50. 3. 50-3-02
  • 林 慶. 熱電発電の実用化に向けた格子欠陥含有単結晶の開発. アグリバイオ. 2023. 7. 39-41
  • Enhancement of thermoelectric performance of Mg2Sn single crystals via lattice-defect engineering. JSAP Review. 2022. 2022. 220403
  • Kei Hayashi. Enhancement of thermoelectric properties of Mg2Sn single crystals via lattice-defect engineering. Oyo Buturi. 2022. 91. 5. 271-275
  • 林 慶. Mg2Sn単結晶の点欠陥・線欠陥に対する化学的圧力の効果. 日本熱電学会誌. 2022. 18. 3. 145-146
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Patents (9)：
  • 熱電材料および熱電材料の製造方法
  • 熱電材料および熱電材料の製造方法
  • 熱電変換材料および熱電変換モジュール
  • Thermoelectric Conversion Material and Thermoelectric Conversion Module
  • Thermoelectric material and method for producing thermoelectric material
ｍore...
Books (3)：
  • 環境発電ハンドブック : 機能性材料・デバイス・標準化 : IoT時代で加速する社会実装
    エヌ・ティー・エス 2021 ISBN:9784860437480
  • Magnetic Materials and Magnetic Levitation
    IntechOpen 2020
  • Thermoelectric Materials -Principles and Concepts for Enhanced Properties-
    De Gruyter 2020
Lectures and oral presentations  (149)：
  • 酸化物熱電材料を用いたUni-leg熱電発電モジュールの設計
    (第21回 日本熱電学会学術講演会 2024)
  • First-Principles Study for High Thermoelectric Performance Iron-based Half-Heusler Compounds with Thermodynamic and Mechanical Stability
    (第21回 日本熱電学会学術講演会 2024)
  • チムニーラダー型化合物(Fe1-xCox)Geγ (γ~1.52)の合成と熱電特性
    (第21回 日本熱電学会学術講演会 2024)
  • 格子欠陥を導入したMg2Ge単結晶のp型熱電性能
    (第21回 日本熱電学会学術講演会 2024)
  • Lattice defect engineering for high-performance Mg2Sn and Mg2Ge thermoelectric single crystals
    (14th International Conference on Ceramic Materials and Components for Energy and Environmental Systems (cmcee14) 2024)
ｍore...
Education (3)：
  • - 2002 The University of Tokyo Graduate School of Science Department of Physics
  • - 1999 The University of Tokyo Graduate School of Science Department of Physics
  • - 1997 The University of Tokyo Faculty of Science Department of Physics
Professional career (1)：
  • Doctor of Science (The University of Tokyo)
Work history (4)：
  • 2014/04 - 現在 Graduate School of Engineering, Tohoku University Department of Applied Physics, Associate Professor
  • 2007/04 - 2014/03 Graduate School of Engineering, Tohoku University Department of Appplied Physics Assistant Professor
  • 2006/01 - 2007/03 Graduate School of Engineering, Tohoku University Department of Applied Physics Research Associate
  • 2002/04 - 2005/12 Photodynamics Research Center, Riken Researcher
Committee career (26)：
  • 2024/05 - 現在 APAC-Silicide 2025 現地実行委員
  • 2022/09 - 現在 日本熱電学会 研究会委員会 委員
  • 2022/04 - 現在 APEX/JJAP Editor
  • 2021/06 - 現在 Elsevier Early Career Advisory Board (Mater. Today Phys.)
  • 2020/11 - 現在 International Thermoelectric Society Local Organizer
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Awards (36)：
  • 2023/09 - The European Thermoelectric Society Outstanding Poster Presentation Preparation and thermoelectric properties of nonstoichiometric full-Heusler Mn2+xV1-xAl alloys
  • 2023/04 - ACS Publications Front cover (ACS Applied Energy Materials) Charge-Compensated (V, Ru) Co-Substitution in Higher Manganese Silicide Single Crystals for Enhanced Thermoelectric and Mechanical Performance
  • 2023/03 - 東北大学大学院工学研究科応用物理学専攻 第26回応用物理研究奨励賞
  • 2023/02 - Royal Society of Chemistry Back cover (Journal of Materials Chemistry A) Enhanced thermoelectric performance of p-type Mg2Sn single crystals via multi-scale defect engineering
  • 2021/03 - 東北大学大学院工学研究科 工学研究科長賞
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Association Membership(s) (7)：
The Waste Heat Recovery technology consortium of Japan ,  The Professional Group of Semiconducting Silicides and Related Materials ,  The Japan Institute of Metals and Materials ,  International Thermoelectric Society ,  The Thermoelectrics Society of Japan ,  The Japan Society of Applied Physics ,  日本物理学会
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