| Project/Area Number |
16K14375
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Physical properties of metals/Metal-base materials
|
|---|
| 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) |
2016-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| 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)
|
|---|
| 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 |
|---|
| 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.
|
