Development of new thermoelectric materials through band structure engineering and understanding structure-properties relationship

2016 Fiscal Year Final Research Report

• Project/Area Number: 26709051
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: National Institute for Materials Science (2015-2016); The University of Tokyo (2014)
• Principal Investigator: Takagiwa Yoshiki 国立研究開発法人物質・材料研究機構, エネルギー・環境材料研究拠点, 主任研究員 (90549594)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 構造・機能材料 / 熱電変換材料 / 狭ギャップ / 擬ギャップ

Outline of Final Research Achievements

Recently, extensive studies on thermoelectric conversion have been performed toward practical usage on thermoelectric materials which can directly convert from waste heat into electrical energy. In this research project, we synthesized high-performance new materials through band structure engineering, measured the thermoelectric properties, and evaluated the physical properties from theoretical point of view toward better understanding physics behind materials. We found that Sb-based Zintl compounds and MoSi2-type Al6Re5Si4 compounds are both attractive for new thermoelectric materials.

Free Research Field

材料物性