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Study of the origin of high thermoelectric performance in compound semiconductors with Fe

Research Project

Project/Area Number 24550168
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Functional materials chemistry
Research InstitutionNational Institute for Materials Science

Principal Investigator

TSUJII Naohito  独立行政法人物質・材料研究機構, 量子ビームユニット, 主幹研究員 (90354365)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords熱電材料 / カルコパイライト / 出力因子 / 磁性半導体 / 鉱物
Outline of Final Research Achievements

In this study, we propose that magnetic semiconductors can make good thermoelectric materials because of the strong interaction between carriers and magnetic moments. We focus on chalcopyrite (CuFeS2), and synthesize the carrier-doped samples and measure the thermoelectric properties. We observe a high power factor exceeding 1 mW/K2m around room temperature. The carrier effective mass is found to be enhanced to 4 to 6 times that of free electrons, suggesting the interaction between carriers and magnetic moments play an important role to enhance the Seebeck coefficient. Spark plasma sintering method is found to improve both electrical conductivity and high-temperature stability.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (20 results)

All 2014 2013 2012 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Acknowledgement Compliant: 3 results) Presentation (11 results) (of which Invited: 1 results) Remarks (2 results)

  • [Journal Article] Stability and Thermoelectric Property of Cu9Fe9S16: Sulfide Mineral as a Promising Thermoelectric Material2014

    • Author(s)
      Naohito Tsujii and Takao Mori
    • Journal Title

      Materials Research Society Symposium Proceedings

      Volume: 1680

    • DOI

      10.1557/opl.2014.744

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Phase Stability and Thermoelectric Properties of CuFeS2-based Magnetic Semiconductor2014

    • Author(s)
      Naohito Tsujii, Takao Mori, and Yukihiro Isoda
    • Journal Title

      Journal of Electronic Materials

      Volume: 43 Issue: 6 Pages: 2371-2375

    • DOI

      10.1007/s11664-014-3072-y

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Low lattice-thermal conductivity in a cage-structured compound YbCu9Sn4 with divalent Yb ions2014

    • Author(s)
      Naohito Tsujii
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 612 Pages: 170-175

    • DOI

      10.1016/j.jallcom.2014.05.090

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Synthesis and Thermoelectric Properties of Carrier-Doped CuFeS<sub>2</sub> Sintered Samples2014

    • Author(s)
      辻井直人、森孝雄
    • Journal Title

      Journal of the Japan Society of Powder and Powder Metallurgy

      Volume: 61 Issue: 1 Pages: 18-27

    • DOI

      10.2497/jjspm.61.18

    • NAID

      130003393302

    • ISSN
      0532-8799, 1880-9014
    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Possible Enhancement of Thermoelectric Properties by Use of a Magnetic Semiconductor: Carrier-Doped Chalcopyrite Cu1-xFe1+xS22013

    • Author(s)
      Naohito Tsujii
    • Journal Title

      Journal of Electronic Materials

      Volume: 42 Issue: 7 Pages: 1974-1977

    • DOI

      10.1007/s11664-013-2485-3

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] High Thermoelectric Power Factor in a Carrier-Doped Magnetic Semiconductor CuFeS22013

    • Author(s)
      Naohito Tsujii, Takao Mori
    • Journal Title

      Applied Physics Express

      Volume: 6 Issue: 4 Pages: 043001-043001

    • DOI

      10.7567/apex.6.043001

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ferromagnetic Ordering with Heavy Fermion Behavior in YbPdSi2013

    • Author(s)
      Naohito Tsujii, Hideaki Kitazawa
    • Journal Title

      Solid State Communications

      Volume: 159 Pages: 65-69

    • DOI

      10.1016/j.ssc.2013.01.025

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Mineral-based Magnetic Semiconductors: A new possible guideline for earth-abundant and environmentally-friendly thermoelectric materials2014

    • Author(s)
      Naohito Tsujii
    • Organizer
      2014 MRS Fall Meeting
    • Place of Presentation
      Boston
    • Year and Date
      2014-11-30 – 2014-12-05
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 鉱物カルコパイライトおよび関連化合物の熱電物性2014

    • Author(s)
      辻井直人、森孝雄
    • Organizer
      粉体粉末冶金協会
    • Place of Presentation
      大阪大学
    • Year and Date
      2014-10-29 – 2014-10-31
    • Related Report
      2014 Annual Research Report
  • [Presentation] Thermoelectric Properties of CuFeS2 and Cu9Fe9S16 based Alloys2014

    • Author(s)
      Naohito Tsujii, Takao Mori, Yukihiro Isoda
    • Organizer
      International Conference on Thermoelectrics
    • Place of Presentation
      Nashville, TN, USA
    • Year and Date
      2014-07-06 – 2014-07-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] Thermoelectric Properties of an Environmental-Friendly Mineral Mooihoekite Cu9Fe9S162014

    • Author(s)
      Naohito Tsujii
    • Organizer
      IU-MRS International Conference on Electronic Materials
    • Place of Presentation
      Taipei
    • Year and Date
      2014-06-10 – 2014-06-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] Stability and Thermoelectric Property of Cu9Fe9S16: Sulfide Mineral as a Promising Thermoelectric Material2014

    • Author(s)
      Naohito Tsujii
    • Organizer
      Materials Research Society 2014 Spring Meeting
    • Place of Presentation
      San Francisco
    • Year and Date
      2014-04-21 – 2014-04-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] Phase Stability and Thermoelectric Properties of CuFeS2-based Magnetic Semiconductors2013

    • Author(s)
      Naohito Tsujii, Takao Mori, Yukihiro Isoda
    • Organizer
      International Conference on Thermoelectrics 2013
    • Place of Presentation
      神戸市
    • Related Report
      2013 Research-status Report
  • [Presentation] キャリアドープしたCuFeS2焼結体の熱電特性2013

    • Author(s)
      辻井直人、森孝雄、磯田幸宏
    • Organizer
      粉体粉末冶金協会 平成25年度春季大会
    • Place of Presentation
      早稲田大学
    • Related Report
      2013 Research-status Report
  • [Presentation] カゴ状構造をもつYb化合物の合成と物性2013

    • Author(s)
      Naohito Tsujii, Hideaki Kitazawa
    • Organizer
      日本物理学会 第68回年次大会
    • Place of Presentation
      広島
    • Related Report
      2012 Research-status Report
  • [Presentation] Thermoelectric properties of carrier-doped chalcopyrite Cu1-xFe1+xS22012

    • Author(s)
      Naohito Tsujii, Takao Mori, Hideaki Kitazawa
    • Organizer
      International Conference on Thermoelectrics 2012
    • Place of Presentation
      Aalborg, Denmark
    • Related Report
      2012 Research-status Report
  • [Presentation] Thermoelectric Properties of Iron-based Magnetic Semiconductors2012

    • Author(s)
      N. Tsujii, T. Mori, H. Mamiya, H. Kitazawa, Y. Isoda
    • Organizer
      International Union of Materials Research Societies 2012
    • Place of Presentation
      横浜
    • Related Report
      2012 Research-status Report
  • [Presentation] Thermoelectric Properties of a Narrow Gap Semiconductor FeSi1-xGex near Ferromagnetic Instability2012

    • Author(s)
      N. Tsujii, H. Kitazawa, H. Sakurai
    • Organizer
      International Union of Materials Research Societies 2012
    • Place of Presentation
      横浜
    • Related Report
      2012 Research-status Report
  • [Remarks] 辻井直人/NIMS

    • URL

      http://samurai.nims.go.jp/TSUJII_Naohito-j.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] 鉱物をベースにした安全・安価な熱電材料

    • URL

      http://samurai.nims.go.jp/pdf/TSUJII_Naohito-j.pdf

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

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