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Development of Dual Phase Thermoelectric Materials with Local Phonon Mismatch

Research Project

Project/Area Number 23760665
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Structural/Functional materials
Research InstitutionKyoto University

Principal Investigator

OKAMOTO Norihiko L  京都大学, 大学院・工学研究科, 助教 (60505692)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsフォノン散乱 / 透過電子顕微鏡 / 熱電変換材料 / 格子熱伝導率 / 異相界面単結晶 / 異相界面 / 単結晶
Research Abstract

The aim of the project was to improve thermoelectric properties of dual-phase inclusion compounds through the phonon scattering at the hetero-interfaces. In dual-phase ingots of Ba- and Sr-encapsulated clathrate compounds, the hetero-interface has an atomistically coherent cage structure with different encapsulated species. Investigation of the thermoelectric properties of the dual phase crystals gives signs of a property improvement compared to the monolithic compounds.

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Research-status Report
  • Research Products

    (19 results)

All 2012 2011 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (8 results) Book (2 results) Remarks (2 results)

  • [Journal Article] Direct Observation of Vacancies and Local Thermal Vibration in Thermoelectric Rhenium Silicide2012

    • Author(s)
      S.Harada, K.Tanaka, K.Kishida, N.L Okamoto, N.Endo, E.Okunishi, H.Inui
    • Journal Title

      Applied Physics Express

      Volume: 5 Issue: 3 Pages: 35203-35203

    • DOI

      10.1143/apex.5.035203

    • NAID

      10030511442

    • Related Report
      2012 Annual Research Report 2012 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] High-TC Ferromagnetic Semiconductor-Like Behavior and Unusual Electrical Properties in Compounds with a 2×2×2 Superstructure of the Half-Heusler Phase2012

    • Author(s)
      Ding-Bang Xiong, Norihiko L.Okamoto, Takeshi Waki, Yufeng Zhao, Kyosuke Kishida, Haruyuki Inui
    • Journal Title

      Chemistry A European Journal

      Volume: 18 Issue: 9 Pages: 2536-2542

    • DOI

      10.1002/chem.201102939

    • Related Report
      2012 Annual Research Report 2012 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Improvement of Thermoelectric Properties of Chimney-Ladder Compounds by Introducing High-Density Interfaces2012

    • Author(s)
      岡本 範彦, 乾 晴行
    • Journal Title

      Journal of the Japan Society of Powder and Powder Metallurgy

      Volume: 59 Issue: 4 Pages: 175-179

    • DOI

      10.2497/jjspm.59.175

    • NAID

      10030575820

    • ISSN
      0532-8799, 1880-9014
    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Planar Symmetry Incompatibility in Ru-Sn-Zn Pseudo-Decagonal Approximants Composed of Novel Pentagonal Antiprisms2011

    • Author(s)
      D.B.Xiong, N.L.Okamoto, H.Inui
    • Journal Title

      Inorganic Chemistry

      Volume: 50 Issue: 3 Pages: 827-835

    • DOI

      10.1021/ic101720m

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] 「PBET 界面制御によるチムニーラダー化合物の熱電特性改善」ミニ特集企画『「熱を電気に直接変換」熱電変換材料の現状と将来像』2011

    • Author(s)
      岡本 範彦, 足立 大樹, 岸田 恭輔, 田中 克志, 乾 晴行
    • Journal Title

      日本金属学会誌「まてりあ」

      Volume: 第50巻, 第4号 Pages: 149-151

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Direct Observation of an Ordered Arrangement of Vacancies and Large Local Thermal Vibration in Rhenium Silicide by Cs-corrected STEM2011

    • Author(s)
      Shunta Harada, Katsushi Tanaka, Kyosuke Kishida, Norihiko L. Okamoto, Haruyuki Inui, Noriaki Endo and Eiji Okunishi
    • Journal Title

      Materials Research Society Symposium Proceedings

      Volume: Vol. 1295

    • DOI

      10.1557/opl.2011.43

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] PBET界面制御によるチムニーラダー化合物の熱電特性改善2011

    • Author(s)
      岡本範彦, 足立大樹, 岸田恭輔, 田中克志, 乾晴行
    • Journal Title

      日本金属学会誌「まてりあ」

      Volume: 50 Pages: 149-151

    • NAID

      10028175741

    • URL

      http://www.jim.or.jp/journal/m/pdf1/50/04/149.pdf

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] チムニーラダーシリサイドにおけるPBET 界面構造と熱電特性2012

    • Author(s)
      岡本 範彦,足立 大樹,岸田 恭輔,田中 克志,乾 晴行
    • Organizer
      第59回応用物理学関係連合講演会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2012-03-15
    • Related Report
      2012 Final Research Report
  • [Presentation] チムニーラダーシリサイドのナノ構造制御による熱電特性向上2012

    • Author(s)
      岡本 範彦
    • Organizer
      日本熱電学会第14回研究会
    • Place of Presentation
      大阪大学
    • Year and Date
      2012-01-10
    • Related Report
      2012 Final Research Report
  • [Presentation] 第3元素添加Mnシリサイドの結晶構造と熱電特性2012

    • Author(s)
      岡本範彦, 岸田恭輔, 乾晴行
    • Organizer
      日本金属学会第150回大会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2011 Research-status Report
  • [Presentation] チムニーラダーシリサイドにおけるPBET界面構造と熱電特性2012

    • Author(s)
      岡本 範彦,足立 大樹,岸田 恭輔,田中克志,乾 晴行
    • Organizer
      第59回応用物理学関係連合講演会(招待講演)
    • Place of Presentation
      早稲田大学
    • Related Report
      2011 Research-status Report
  • [Presentation] チムニーラダーシリサイドのナノ構造制御による熱電特性向上2012

    • Author(s)
      岡本 範彦
    • Organizer
      日本熱電学会第14回研究会(招待講演)
    • Place of Presentation
      大阪大学
    • Related Report
      2011 Research-status Report
  • [Presentation] 異相界面制御によるチムニーラダーシリサイドの熱電特性向上2011

    • Author(s)
      岡本 範彦,乾 晴行
    • Organizer
      粉体粉末冶金協会平成23年度秋季大会
    • Place of Presentation
      大阪大学
    • Year and Date
      2011-10-26
    • Related Report
      2012 Final Research Report
  • [Presentation] 異相界面制御によるチムニーラダーシリサイドの熱電特性向上2011

    • Author(s)
      岡本 範彦,乾 晴行
    • Organizer
      粉体粉末冶金協会平成23年度秋季大会(招待講演)
    • Place of Presentation
      大阪大学
    • Related Report
      2011 Research-status Report
  • [Presentation] Microstructures and thermoelectric properties of nanostructured Mn-doped zinc antimonides2011

    • Author(s)
      Ding-Bang Xiong, Norihiko L. Okamoto, Kyosuke Kishida, and Haruyuki Inui
    • Organizer
      International Conference on Thermoelectrics 2011
    • Place of Presentation
      Traverse, MI
    • Related Report
      2011 Research-status Report
  • [Book] 熱電変換技術の基礎と応用-クリーンなエネルギ社会を目指して-2011

    • Author(s)
      岡本 範彦, 乾 晴行
    • Publisher
      CMC 出版
    • Related Report
      2012 Final Research Report
  • [Book] 『熱電変換技術の基礎と応用-クリーンなエネルギー社会を目指して-』 第3章 第11節 「PBET界面制御による熱電材料の高性能化」2011

    • Author(s)
      岡本範彦, 乾 晴行 (編纂:日本熱電学会,編集:舟橋良次,木村薫,黒崎健,竹内恒博)
    • Total Pages
      254
    • Publisher
      CMC出版
    • Related Report
      2011 Research-status Report
  • [Remarks] 個人

    • URL

      http://nlokamoto.web.fc2.com/

    • Related Report
      2012 Final Research Report
  • [Remarks] 研究室

    • URL

      http://imc.mtl.kyoto-u.ac.jp/

    • Related Report
      2012 Final Research Report

URL: 

Published: 2011-08-05   Modified: 2019-07-29  

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