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Enhancement of thermoelectric efficiency by combining organic and inorganic materials

Research Project

Project/Area Number 16K13838
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Condensed matter physics II
Research InstitutionOsaka University

Principal Investigator

Hanasaki Noriaki  大阪大学, 理学研究科, 教授 (70292761)

Research Collaborator Sakai Hideaki  
Murakawa Hiroshi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords熱電変換 / 電気化学 / 無機物質 / 有機分子 / 熱電効果 / 複合材料・物性
Outline of Final Research Achievements

In the thermoelectric materials, the acoustic phonon, which contributes to the heat conductance, is scattered by the rattling of the atoms. The organic molecules have many intramolecular vibration modes. These many modes have the advantage of the scattering of the phonon. We studied the effect of the intercalation of the organic cations such as hexylamine into the inorganic layered compound SnSe2 by the electrochemical methods. The electric conductivity increases by the electron doping, and the heat conductivity decreases, since the organic molecules cause the scattering of the phonon. By the intercalation of the organic molecules, we succeeded in the enhancement of the dimensionless figure of merit.

Academic Significance and Societal Importance of the Research Achievements

簡便に熱を電気エネルギーに変換できれば、社会の省エネルギーに貢献できる。このような働きをする物質は熱電物質と呼ばれる。変換効率を上げるには、熱電物質内における熱の流れを減らす必要がある。本研究では、無機化合物に有機分子を導入し、熱を運ぶフォノンを有機分子で散乱させる事を試みた。実験の結果、熱伝導率を下げて変換効率を向上させる事に成功した。熱電効果に有利な無機化合物と、熱伝導を阻害する有機分子を組み合わせる有効性が確かめられた。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (20 results)

All 2019 2018 2017 2016

All Journal Article (15 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 15 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (5 results)

  • [Journal Article] Electrochemical synthesis of phthalocyanine-molecular mixed crystals in dilute solution2018

    • Author(s)
      R. Ishii, H. Murakawa , M. Nishi , M. Matsuda , H. Sakai and N. Hanasaki
    • Journal Title

      J. Cryst. Growth

      Volume: 487 Pages: 92-92

    • DOI

      10.1016/j.jcrysgro.2018.02.023

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microwave nonreciprocity of magnon excitations in the noncentrosymmetric antiferromagnet Ba2MnGe2O72018

    • Author(s)
      Y. Iguchi, Y. Nii, M. Kawano, H. Murakawa, N. Hanasaki, and Y. Onose
    • Journal Title

      PHYSICAL REVIEW B

      Volume: 98 Issue: 6 Pages: 064416-064416

    • DOI

      10.1103/physrevb.98.064416

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative evaluation of Dirac physics in PbTe2018

    • Author(s)
      Kazuto Akiba, Atsushi Miyake, Hideaki Sakai, Keisuke Katayama, Hiroshi Murakawa, Noriaki Hanasaki, Sadao Takaoka, Yoshiki Nakanishi, Masahito Yoshizawa and Masashi Tokunaga
    • Journal Title

      Phys. Rev. B

      Volume: 98 Issue: 11 Pages: 115144-115144

    • DOI

      10.1103/physrevb.98.115144

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nanoscale ice-type structural fluctuation in spinel titanetes2018

    • Author(s)
      S. Torigoe, T. Hattori, K. Kodama, T. Honda, H. Sagayama, K. Ikeda, T. Otomo, H. Nitani, H. Abe, H. Murakawa, \underline{H. Sakai}, and N. Hanasaki
    • Journal Title

      Phys. Rev. B

      Volume: 98 Issue: 13 Pages: 134443-134443

    • DOI

      10.1103/physrevb.98.134443

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced magnetoresistance in the binary semimetal NbAs2 due to improved crystal quality2018

    • Author(s)
      K.Yokoi, H.Murakawa, M.Komada, T.Kida, M.Hagiwara, H.Sakai, and N.Hanasaki
    • Journal Title

      Physical Review Materials

      Volume: 2 Issue: 2 Pages: 024203-024203

    • DOI

      10.1103/physrevmaterials.2.024203

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An electrically conducting crystal composed of an octahedrally ligated porphyrin complex with high-spin iron(III)2018

    • Author(s)
      M. Nishi, R. Ishii, M. Ikeda, N. Hanasaki, N. Hoshino, T. Akutagawa, M. Sumimoto, M. Matsuda
    • Journal Title

      Dalton Transactions

      Volume: 47 Issue: 12 Pages: 4070-4075

    • DOI

      10.1039/c7dt04649a

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synthesis and Characterization of Iodide-coordinated Dinuclear Molecular Single Crystal Cr2(mu-I)2I4(C8N2H4)42017

    • Author(s)
      Hiroshi Murakawa, Moriyoshi Komada, and Noriaki Hanasaki
    • Journal Title

      Chemistry Letters

      Volume: 46 Issue: 4 Pages: 554-556

    • DOI

      10.1246/cl.161205

    • NAID

      130005549082

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Axially Ligated Phthalocyanine Conductors with Magnetic Moments2017

    • Author(s)
      Tamotsu Inabe and Noriaki Hanasaki
    • Journal Title

      Magnetochemistry

      Volume: 3 Issue: 2 Pages: 18-18

    • DOI

      10.3390/magnetochemistry3020018

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A new strategy for inducing dipole moments in charge-transfer complexes: Introduction of asymmetry into axially ligated iron phthalocyanines2017

    • Author(s)
      M. Matsuda,* S. Iwamura, Y. Hamada, H. Ohishi, M. Nishi, Y. Nogami, M. Ikeda, A. Kanda, Y. Funasako, T. Mochida, A. Nakao, N. Hanasaki
    • Journal Title

      Dalton Transactions

      Volume: 46 Issue: 35 Pages: 11800-11805

    • DOI

      10.1039/c7dt02605f

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] PVD thin film growth of M(Pc)(CN)2 axially substituted metal-phthalocyanines2017

    • Author(s)
      Felix Kuster, Marco Grunewald, Mitsuo Ikeda, Noriaki Hanasaki, and Torsten Fritz
    • Journal Title

      Journal of Porphyrins and Phthalocyanines

      Volume: 21 Issue: 11 Pages: 739-744

    • DOI

      10.1142/s1088424617500754

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Interplay between charge density wave and antiferromagnetic order in GdNiC22017

    • Author(s)
      N. Hanasaki, S. Shimomura, K. Mikami, Y. Nogami, H. Nakao, and H. Onodera
    • Journal Title

      Phys. Rev. B

      Volume: 95 Issue: 8

    • DOI

      10.1103/physrevb.95.085103

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Multiple charge density wave transitions in the antiferromagnets RNiC2 (R=Gd,Tb)2016

    • Author(s)
      S. Shimomura, C. Hayashi, N. Hanasaki, K. Ohnuma, Y. Kobayashi, H. Nakao, M. Mizumaki, and H. Onodera
    • Journal Title

      Physical Review B

      Volume: 93 Issue: 16

    • DOI

      10.1103/physrevb.93.165108

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] High Magnetic Field Study on Giant Negative Magnetiresistance in the Molecular Conductor TPP[Cr(Pc)(CN)2]22016

    • Author(s)
      M. Ikeda, T. Kida, T. Tahara, H. Murakawa, M. Nishi, M. Matsuda, M. Hagiwara, T. Inabe, and N. Hanasaki
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 85 Issue: 6 Pages: 064713-064713

    • DOI

      10.7566/jpsj.85.064713

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Phthalocyanine-Based Single-Component Molecular Conductor [MnIII(Pc)(CN)]2O2016

    • Author(s)
      Mitsuo Ikeda, Hiroshi Murakawa, Masaki Matsuda, and Noriaki Hanasaki
    • Journal Title

      Inorganic Chemistry

      Volume: 55 Issue: 15 Pages: 7314-7316

    • DOI

      10.1021/acs.inorgchem.6b00678

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Giant negative magnetoresistance effect in an iron tetrabenzoporphyrin complex2016

    • Author(s)
      M. Nishi, M. Ikeda, A. Kanda, N. Hanasaki, N. Hoshino, T. Akutagawa, and M. Matsuda
    • Journal Title

      Dalton Transactions

      Volume: 45 Issue: 42 Pages: 16604-16609

    • DOI

      10.1039/c6dt01911k

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] p/n型SnSeにおける外部圧力を利用したバレー構造と熱電特性の制御2019

    • Author(s)
      西村拓也、酒井英明、森仁志、秋葉和人、三宅厚志、徳永将史、上床美也、臼井秀知、越智正之、黒木和彦、片山敬介、坂本拓也、村川寛、花咲徳亮
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 熱電材料SnSeにおける外部圧力を利用した電力因子の向上2017

    • Author(s)
      西村拓也、酒井英明、片山敬介、秋葉和人、三宅厚志、徳永将史、上床美也、村川寛、花咲徳亮
    • Organizer
      日本物理学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 有機分子インターカレーションによる遷移金属ダイカルコゲナイドSnSe2の電力因子と熱伝導率の制御2017

    • Author(s)
      李海卿、酒井英明、片山敬介、池田光雄、青石優平、村川寛、花咲徳亮
    • Organizer
      日本物理学会2017年年次大会
    • Place of Presentation
      大阪大学
    • Related Report
      2016 Research-status Report
  • [Presentation] 熱電材料SnSeにおける元素置換を利用したバンド構造とキャリア密度の制御2017

    • Author(s)
      坂本拓也、酒井英明、片山敬介、村川寛、花咲徳亮
    • Organizer
      日本物理学会2017年年次大会
    • Place of Presentation
      大阪大学
    • Related Report
      2016 Research-status Report
  • [Presentation] 層状物質SnSe2における有機分子インターカレーションを用いたキャリア濃度制御と熱電性能の向上2016

    • Author(s)
      李海卿、酒井英明、片山敬介、池田光雄、青石優平、村川寛、花咲徳亮
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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