Development of high-performance thero-functional materials using the unusual thermal conductivity caused by fine electronic structure

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289236
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Inorganic materials/Physical properties
• Research Institution: Toyota Technological Institute
• Principal Investigator: Takeuchi Tsunehiro 豊田工業大学, 工学(系)研究科(研究院), 教授 (00293655)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 熱ダイオード / 熱スイッチ / 熱電材料 / 電子熱伝導度 / 格子熱伝導度 / 電子構造 / 電子輸送現象 / フォノン

Outline of Final Research Achievements

Unusual electron thermal conductivity was realized by use of fine electronic structure in the energy range of a few kBT centered at the chemical potential. With employing the condition of small lattice thermal conductivity, we obtained materials possessing the unusual heavier of electron thermal conductivity. We also construct thermal diodes using such materials of unusual electron thermal conductivity with additionally employing materials possessing thermal conductivity moderately varying with temperature due to the lattice contributions.

Free Research Field

金属電子論，熱電材料