Development of thermal switching device working under a bias voltage
| Project/Area Number |
16K14375
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical properties of metals/Metal-base materials
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| Research Institution | Toyota Technological Institute |
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Principal Investigator |
Takeuchi Tsunehiro 豊田工業大学, 工学(系)研究科(研究院), 教授 (00293655)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 熱流スイッチ / 電子熱伝導度 / 格子熱伝導度 / 非調和振動 / 半導体 / 周期加熱法 / 自己発熱合成法 / 熱スイッチ素子 / 熱ダイオード / 積層構造 / 熱スイッチ / 熱伝導度 / 熱流制御材料 / 電子構造 |
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| Outline of Final Research Achievements |
We tried to fabricate a thermal switching device working under a bias voltage. For this purpose, we had to find materials characterized by extremely small lattice thermal conductivity and a electronic structure of typical semiconductor. We realized that Ag2S, Ag2Se, Ag2Te satisfy this condition, and produced a thermal switching device consisting of two Ag2S sheet of 20 micro-meter in thickness separated by a 60 micro-meter polyimide film. By applying a few volt, we succeeded in observing 4 - 7 % change in thermal conductivity. Although the change in thermal conductivity was too tiny to be utilized, it is naturally suggested that devices with thinner Ag2S and polyimide layers of a few nm would produces 100 times larger switching effect on heat conduction. We are now in progress in producing such a high-performance thermal switching device.
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Report
(3 results)
Research Products
(25 results)
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[Journal Article] Low Thermal Conductivity of Bulk Amorphous Si1－xGex Containing Nano-Sized Crystalline Particles Synthesized by Ball-Milling Process2018
Author(s)
Muthusamy Omprakash, Shunsuke Nishino, Swapnil Chetan Ghodke, Inukai Manabu, Robert Sobota, Masahiro Adachi, Makoto Kiyama , Tsunehiro Takeuchi, Yoshiyuki Yamamoto, Harish Santhanakrishnan,Hiroya Ikeda,Yasuhiro Hayakawa
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Journal Title
Journal of Electronic Materials
Volume: -
Issue: 6
Pages: 3260-3266
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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