Institute of Multidisciplinary Research for Advanced Materials, Tohoku University


LAST UPDATE 2021/05/02

  • 研究者氏名
    Researcher Name

    山田高広 Takahiro YAMADA
    教授 Professor
  • 所属
    Professional Affiliation

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

    無機材料研究部門 無機固体材料化学研究分野
    Division of Inorganic Material Research, Inorganic Solid State Materials Chemistry
  • 研究キーワード
    Research Keywords

    Inorganic materials
    Thermoelectric materials
    Intermetallic compounds
    Exploration of novel compounds and materials
Research Subject
Exploration of novel intermetallic compounds for thermoelectric materials

研究の背景 Background


Thermoelectric materials are of interest for waste-heat recovery applications that lead to energy conservation, and for heat pump applications such as Peltier cooler. The fundamental research by exploration and characterization of novel compounds, and by developing new synthesis process which can control the morphology are important to break the limit of the performance of a few existing materials, such as Bi2Te3 alloys developed in the late 1950’s.

研究の目標 Outcome


My research is low-temperature synthesis of advanced intermetallic compounds with various morphologies using alkali metals, and exploration of novel intermetallic compounds/materials with diverse crystal structures and functions. The fundamental study on their crystal structures and physical properties is carried out to develop new materials for energy applications, in particular, thermoelectric materials which can directly convert the heat energy to electrical energy and vice versa.

研究図Research Figure

Fig.1. Concept and results of low-temperature preparation of metal silicides with various morphologies using Na. Fig.2. The crystal structures of the novel intermetallic compounds of Na2MgX, X = Sn and Pb.

文献 / Publications

Na をフラックスに用いた金属ケイ化物系熱電材料の合成, 日本熱電学会誌, 8, 13–18 (2012).
Intermetallics, 19, 908–912 (2011), Inorg. Chem., 51, 4810–4816 (2012), Phys. Status Solidi C 10, 157–160 (2013), Inorg. Chem., 53, 5253–5259 (2014).