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Theoretical sutdy on high-mobility thermoelectric materials using topology

Research Project

Project/Area Number 19K15436
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 29010:Applied physical properties-related
Research InstitutionShimane University

Principal Investigator

Usui Hidetomo  島根大学, 学術研究院理工学系, 助教 (10722902)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords熱電効果 / 第一原理計算
Outline of Research at the Start

温度差による発電である熱電発電は、温度差が存在するあらゆる場所で使用できる特徴を持つが、現状で発電効率は十分でなく、さらなる高効率化が求められている。本研究ではさらなる高効率を達成するために、物質固有の情報の一つである電子のトポロジーに着目する。電子のトポ
ロジーが通常と異なる場合、固体中で電子が動きやすくなり、大きな電気伝導が期待できる。現在の高性能物質は固体中の電子が動きづらい特徴があり、これをトポロジーを活用することにより解消し高性能化達成を狙う。計算機による解析を行うことで、特殊なトポロジーを持つ熱電物質を設計する指針を得て、具体的な高性能熱電物質の提案を行う。

Outline of Final Research Achievements

The thermoelectric effect refers to the phenomenon of conversion from heat to electricity or from electricity to heat. Because of its characteristics, it is attracting attention as a possible solution to energy problems through power generation using waste heat. However, there are not many materials with high performance, and theoretical design guidelines are needed. In this study, we theoretically studied a compound with a triangular lattice structure having high mobility due to its topological origin. As a result, theoretical analyses were performed for 25 1-2-2 Zintl-phase compounds, and we found a factor for obtaining high thermoelectric performance materials and found some high-performance thermoelectric materials. We studied the origin of thermoelectric performance for various materials exhibiting axis-dependent conduction polarity.

Academic Significance and Societal Importance of the Research Achievements

熱電物質は半導体の一部の元素を置換する、いわゆるキャリアドープを行うことで、初めてその性能を実験的に測定することが可能となる。このような元素置換を行うことは実験的にコストが大きいため、理論的に新規物質を提案することには大きな意義がある。本研究では新しい熱電物質設計指針の提案と、新規物質の提案を行うことができた。本研究成果により、実際に新規高性能熱電物質の合成報告が期待される。また、新しい設計指針として提案した新規パラメータは、今回計算した物質以外でも一般的に利用できるものである。このパラメータの導入により、理論による新規物質探索の発展が期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 2020 2019

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 3 results) Presentation (4 results) Book (1 results)

  • [Journal Article] Conserved axis-dependent conduction polarity in NaSnAs polycrystalline bulk sample for transverse thermoelectric application2022

    • Author(s)
      Omprakash Muthusamy、Usui Hidetomo、Yanagi Kazuhiro、Mizuguchi Yoshikazu、Goto Yosuke
    • Journal Title

      Materials Today Communications

      Volume: 31 Pages: 103558-103558

    • DOI

      10.1016/j.mtcomm.2022.103558

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bipolar doping and thermoelectric properties of Zintl arsenide Eu<sub>5</sub>In<sub>2</sub>As<sub>6</sub>2021

    • Author(s)
      Tomitaka Naoki、Goto Yosuke、Morino Kota、Hoshi Kazuhisa、Nakahira Yuki、Ito Hiroaki、Miura Akira、Usui Hidetomo、Mizuguchi Yoshikazu
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 9 Issue: 46 Pages: 26362-26370

    • DOI

      10.1039/d1ta07559d

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A comparative study of thermoelectric Cu2TrTi3S8 (Tr = Co and Sc) thiospinels: Enhanced Seebeck coefficient via electronic structure modification2021

    • Author(s)
      Hashikuni Katsuaki、Suekuni Koichiro、Usui Hidetomo、Chetty Raju、Ohta Michihiro、Takabatake Toshiro、Ohtaki Michitaka
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 871 Pages: 159548-159548

    • DOI

      10.1016/j.jallcom.2021.159548

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermoelectric Properties of the As/P-Based Zintl Compounds EuIn2As2?xPx (x = 0?2) and SrSn2As22021

    • Author(s)
      Shinozaki Keisuke、Goto Yosuke、Hoshi Kazuhisa、Kiyama Ryosuke、Nakamura Naoto、Miura Akira、Moriyoshi Chikako、Kuroiwa Yoshihiro、Usui Hidetomo、Mizuguchi Yoshikazu
    • Journal Title

      ACS Applied Energy Materials

      Volume: 未発行 Issue: 5 Pages: 5155-5164

    • DOI

      10.1021/acsaem.1c00687

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The crystal structure and electrical/thermal transport properties of Li1?xSn2+xP2 and its performance as a Li-ion battery anode material2021

    • Author(s)
      Goto Yosuke、Nakanishi Shota、Nakai Yusuke、Mito Takeshi、Miura Akira、Moriyoshi Chikako、Kuroiwa Yoshihiro、Usui Hidetomo、Matsuda Tatsuma D.、Aoki Yuji、Nakacho Yoshifumi、Yamada Yuto、Kanamura Kiyoshi、Mizuguchi Yoshikazu
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 9 Issue: 11 Pages: 7034-7041

    • DOI

      10.1039/d0ta11045k

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] First Principles Study on the Thermoelectric Performance of CaAl2Si2-type Zintl Phase Compounds2020

    • Author(s)
      Usui Hidetomo、Kuroki Kazuhiko
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 89 Issue: 12 Pages: 124707-124707

    • DOI

      10.7566/jpsj.89.124707

    • NAID

      40022438359

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Thermoelectric Properties of (Ba,K)Zn2As2 Crystallized in the ThCr2Si2-type Structure2020

    • Author(s)
      Kunioka Haruno、Kihou Kunihiro、Kato Daichi、Usui Hidetomo、Iida Tsutomu、Nishiate Hirotaka、Kuroki Kazuhiko、Yamamoto Atsushi、Lee Chul-Ho
    • Journal Title

      Inorganic Chemistry

      Volume: 59 Issue: 9 Pages: 5828-5834

    • DOI

      10.1021/acs.inorgchem.9b02680

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] First-principles Study of LaOPbBiS3 and Its Analogous Compounds as Thermoelectric Materials2020

    • Author(s)
      Kurematsu Keiya、Ochi Masayuki、Usui Hidetomo、Kuroki Kazuhiko
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 89 Issue: 2 Pages: 0247021-10

    • DOI

      10.7566/jpsj.89.024702

    • NAID

      40022155090

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 第一原理計算によるA2Zn3As2O2(A=Sr, Ba)の熱電性能の研究2021

    • Author(s)
      宮本武幸
    • Organizer
      日本物理学会 2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] コバルト酸化物AgCoO2の第一原理計算による熱電性能の解析2021

    • Author(s)
      臼井秀知
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 第一原理バンド計算による層状ジントル相化合物の熱電効果の解析2020

    • Author(s)
      臼井秀知、黒木和彦
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] CuCh4 (Ch = S, Se) 四面体を有する熱電物質における擬一次元的電子状態の第一原理的解析2019

    • Author(s)
      越智正之、森仁志、加藤大智、臼井秀知、黒木和彦
    • Organizer
      第16回日本熱電学会学術講演会
    • Related Report
      2019 Research-status Report
  • [Book] 計算科学を活用した熱電変換材料の研究開発動向2022

    • Author(s)
      監修:森孝雄 / 塩見 淳一郎
    • Total Pages
      214
    • Publisher
      シーエムシー・リサーチ
    • ISBN
      9784910581187
    • Related Report
      2021 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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