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Suggestion of Strategy for Development of Thermoelectric Nanomaterials Based on the Kubo-Luttinger Theory

Research Project

Project/Area Number 20K15117
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 28020:Nanostructural physics-related
Research InstitutionTokyo University of Science

Principal Investigator

Matsubara Manaho  東京理科大学, 理学部第一部物理学科, 助教 (20867832)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsカーボンナノチューブ / グラフェン / FeSe / 熱電変換 / パワーファクター / ゼーベック係数 / 熱電材料 / 薄膜 / 二層グラフェン / 久保・ラッティンジャー理論 / 不純物ドープ / 熱電ナノ材料
Outline of Research at the Start

熱電材料の研究が以前にも増して重要となっている最中,統計物理学の分野において熱電性能を高精度に評価することのできる「久保・ラッティンジャーの理論(KL理論)」が確立された.本研究ではこのKL理論に基づき,材料のナノ構造化による高効率な熱電材料の理論設計や,ナノ材料に固有の新奇な熱電現象の発見を行う.
具体的には,1次元ナノ材料としてカーボンナノチューブ,2次元ナノ材料として様々な原子層材料の熱電性能を最大化するための設計指針を提示する.

Outline of Final Research Achievements

This study proposed design concepts to improve thermoelectric properties of low-dimensional thermoelectric materials using the Kubo-Luttinger theory. (1) We predicted the optimal nitrogen concentration that maximizes the power factor (PF) of nitrogen-doped carbon nanotubes and found that the maximum PF value increases as the carbon nanotube diameter decreases. (2) We also found that applying a perpendicular electric field to a bilayer graphene significantly enhances the PF near the band edge. (3) Finally, we suggested that if the bands are degenerate at the Fermi level, both large electrical conductivity and large Seebeck coefficient can be achieved by splitting the degeneracy of the electronic states by applying an external electric field, for example.

Academic Significance and Societal Importance of the Research Achievements

身の回りのあらゆるものがインターネットと繋がるIoT社会において,熱から電気を得る熱電変換材料の研究は,以前にも増して重要となっている.本研究では,熱電性能を高精度に評価することができる久保・ラッティンジャーの理論を用いて,低次元材料の熱電性能を最適化するための定量的な指針を示した.さらに,大きな電気伝導率とゼーベック係数を実現するための新たな熱電材料開発のコンセプトも提案した.これらの成果は実践的かつ汎用的であり,今後の熱電材料開発やデバイス応用への貢献が期待される.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (22 results)

All 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (18 results) (of which Int'l Joint Research: 9 results,  Invited: 1 results)

  • [Journal Article] Maximum Thermoelectric Power Factor and Optimal Carrier Concentration of Bilayer Graphene at Various Temperatures2021

    • Author(s)
      Horii Hikaru、Matsubara Manaho、Sasaoka Kenji、Yamamoto Takahiro
    • Journal Title

      e-Journal of Surface Science and Nanotechnology

      Volume: 19 Issue: 0 Pages: 125-130

    • DOI

      10.1380/ejssnt.2021.125

    • NAID

      130008132146

    • ISSN
      1348-0391
    • Year and Date
      2021-12-23
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Optimization of Thermoelectric Power Factor of Bilayer Graphene by Vertical Electric Field2021

    • Author(s)
      Horii Hikaru、Matsubara Manaho、Sasaoka Kenji、Yamamoto Takahiro、Fukuyama Hidetoshi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 90(10) Issue: 10 Pages: 104711-104711

    • DOI

      10.7566/jpsj.90.104711

    • NAID

      40022709409

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Optimal Thermoelectric Power Factor of Narrow-Gap Semiconducting Carbon Nanotubes with Randomly Substituted Impurities2021

    • Author(s)
      Matsubara Manaho、Sasaoka Kenji、Yamamoto Takahiro、Fukuyama Hidetoshi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 90 Issue: 4 Pages: 044702-044702

    • DOI

      10.7566/jpsj.90.044702

    • NAID

      40022539049

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] One-dimensionality of thermoelectric properties of semiconducting nanomaterials2021

    • Author(s)
      Ichinose Yota、Matsubara Manaho、Yomogida Yohei、Yoshida Akari、Ueji Kan、Kanahashi Kaito、Pu Jiang、Takenobu Taishi、Yamamoto Takahiro、Yanagi Kazuhiro
    • Journal Title

      Physical Review Materials

      Volume: 5 Issue: 2 Pages: 025404-025404

    • DOI

      10.1103/physrevmaterials.5.025404

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Theoretical study on optimization of thermoelectric properties of impurity-doped carbon nanotubes2022

    • Author(s)
      Manaho Matsubara, Kenji Sasaoka, and Takahiro Yamamoto
    • Organizer
      32rd International Conference on Diamond and Carbon Materials
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Prediction of optimal thermoelectric properties of nitrogen-doped carbon nanotubes2022

    • Author(s)
      Manaho Matsubara, Kenji Sasaoka, Takahiro Yamamoto, and Hidetoshi Fukuyama
    • Organizer
      The 22nd International Vacuum Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Maximization of thermoelectric power factor of nitrogen-substituted carbon nanotubes with various diameters2022

    • Author(s)
      Manaho Matsubara, Kenji Sasaoka, Takahiro Yamamoto, and Hidetoshi Fukuyama
    • Organizer
      14th International Symposium on Atomic Level Characterizations for New Materials and Devices '22
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Theoretical Prediction of Optimal Thermoelectric Properties of Impurity-doped Carbon Nanotubes2022

    • Author(s)
      Manaho Matsubara, Kenji Sasaoka, and Takahiro Yamamoto
    • Organizer
      International Conference on Organic and Hybrid Thermoelectrics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Theoretical prediction of optimal thermoelectric properties of carbon nanotubes2022

    • Author(s)
      Manaho Matsubara, Kenji Sasaoka, Takahiro Yamamoto, and Hidetoshi Fukuyama
    • Organizer
      35th International Microprocesses and Nanotechnology Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Theoretical Prediction of Optimal Thermoelectric Properties of Low-Dimensional Nanomaterials2021

    • Author(s)
      Manaho Matsubara, Junei Kobayashi, Hikaru Horii, Kenji Sasaoka, Takahiro Yamamoto, and Hidetoshi Fukuyama
    • Organizer
      The International Conference on Flexible and Printed Electronics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Maximization of thermoelectric power factor of nitrogen-substituted carbon nanotubes with various diameters2021

    • Author(s)
      Manaho Matsubara, Kenji Sasaoka, Takahiro Yamamoto, and Hidetoshi Fukuyama
    • Organizer
      International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Theoretical study on thermoelectric effects of nitrogen-doped carbon nanotubes2021

    • Author(s)
      Manaho Matsubara, Kenji Sasaoka, Takahiro Yamamoto, Hidetoshi Fukuyama, Theoretical study on thermoelectric effects of nitrogen-doped carbon nanotubes
    • Organizer
      The International Chemical Congress of Pacific Basin Societies
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 不純物ドープカーボンナノチューブの熱電性能の最適化に関する理論研究, 第18回日本熱電学会学術講演会2021

    • Author(s)
      松原愛帆,笹岡健二,山本貴博,福山秀敏
    • Organizer
      日本熱電学会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 窒素ドープカーボンナノチューブの熱電特性の最適2021

    • Author(s)
      松原 愛帆,笹岡 健二,山本 貴博,福山 秀敏
    • Organizer
      日本表面真空学会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] ゲート電場を用いた二層グラフェンの熱電性能の最適化2021

    • Author(s)
      掘井 耀,松原 愛帆,笹岡 健二,山本 貴博,福山 秀敏
    • Organizer
      日本熱電学会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 垂直電場による二層グラフェンの熱電性能の最適化2021

    • Author(s)
      掘井 耀,松原 愛帆,笹岡 健二,山本 貴博,福山 秀敏
    • Organizer
      応用物理学会秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 窒素ドープによるカーボンナノチューブ熱電特性の最適化2021

    • Author(s)
      松原愛帆, 笹岡健二, 山本貴博
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 半導体型ナノ材料における熱電物性の一次元性2021

    • Author(s)
      一ノ瀬遥太, 松原愛帆, 蓬田陽平, 吉田朱里, 上治寛, 金橋魁利, 蒲江, 竹延大志, 山本貴博, 柳和宏
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 窒素ドープカーボンナノチューブの熱電特性に関する理論研究2020

    • Author(s)
      松原愛帆, 笹岡健二, 山本貴博
    • Organizer
      日本表面真空学会学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 垂直電場下での二層グラフェンの熱電性能の最適化2020

    • Author(s)
      掘井耀, 松原愛帆, 笹岡健二, 山本貴博, 福山秀敏
    • Organizer
      日本表面真空学会学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] One dimensionality of the thermoelectric properties in semiconducting single walled carbon nanotubes2020

    • Author(s)
      Yota Ichinose, Manaho Matsubara, Yohei Yomogida, Akari Yoshida, Kan Ueji, Kaito Kanahashi, Jiang Pu, Taishi Takenobu, Takahiro Yamamoto, and Kazuhiro Yanagi
    • Organizer
      The 59th Fullerenes-Nanotubes-Graphene General Symposium
    • Related Report
      2020 Research-status Report
  • [Presentation] Dimensionality of Thermoelectric Properties in Low Dimensional Semiconducting Materials2020

    • Author(s)
      Yota Ichinose, Manaho Matsubara, Yohei Yomogida, Akari Yoshida, Kan Ueji, Kaito Kanahashi, Jiang Pu, Taishi Takenobu, Takahiro Yamamoto, and Kazuhiro Yanagi
    • Organizer
      32nd International Microprocesses and Nanotechnology Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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