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2012 Fiscal Year Final Research Report

Development of Dual Phase Thermoelectric Materials with Local Phonon Mismatch

Research Project

  • PDF
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
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
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.

  • Research Products

    (12 results)

All 2012 2011 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (3 results) Book (1 results) Remarks (2 results)

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

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

      Applied Physics Express

      Volume: Vol. 5 Pages: 35203

    • DOI

      DOI:10.1143/APEX.5.035203

    • Peer Reviewed
  • [Journal Article] High-TCFerromagnetic Semiconductor-Like Behavior and Unusual Electrical Properties inCompounds 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, and Haruyuki Inui
    • Journal Title

      Chemistry A European Journal

      Volume: Vol. 18 Pages: 2536-2542

    • DOI

      DOI:10.1002/chem.201102939

    • Peer Reviewed
  • [Journal Article] 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2012

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

      粉体および粉末冶金

      Volume: 第59巻 Pages: 175-179

    • DOI

      DOI:10.2497/jjspm.59.175

    • Peer Reviewed
  • [Journal Article] Planar Symmetry Incompatibility in Ru-Sn-Zn Pseudo-Decagonal Approximants Composed of Novel Pentagonal Antiprisms2011

    • Author(s)
      Ding-Bang Xiong, Norihiko L. Okamoto, and Haruyuki Inui
    • Journal Title

      Inorganic Chemistry

      Volume: Vol. 50, Issue 3 Pages: 827-835

    • DOI

      DOI:10.1021/ic101720m

    • 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

    • 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

      DOI:10.1557/opl.2011.43

    • 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
  • [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
  • [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
  • [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
    • Total Pages
      116-121
    • Publisher
      CMC 出版
  • [Remarks] 個人

    • URL

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

  • [Remarks] 研究室

    • URL

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

URL: 

Published: 2014-09-25  

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