2013 Fiscal Year Final Research Report
Development of a micro vibration energy harvesting device using silicon dioxide electret film including alkali ions
| Project/Area Number |
23560287
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Intelligent mechanics/Mechanical systems
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| Research Institution | Shizuoka University |
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Principal Investigator |
HASHIGUCHI Gen 静岡大学, 電子工学研究所, 教授 (70314903)
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| Project Period (FY) |
2011 – 2013
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| Keywords | マイクロ・ナノデバイス / マイクロマシン / 環境技術 / 省エネルギー |
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| Research Abstract |
This research focuses on a newly developed electret film that is made of silicon dioxide including potassium ions. We conducted experiments that aim control of charging property, and found that (1) the charging voltage is controllable, (2) the charging end detection is possible, (3) the charging voltage is measureable using electrostatic actuators, and (4) the maximum charging voltage is over 400V. We also fabricated a vibration energy harvesting device using the electret method and demonstrated LED illumination by 0.85 micro watts.
In addition, we examined accelerated aging tests of the electret film and evaluated -1dB voltage decay time; resulting in the charging voltage will be maintained over 30000 year at room temperature.
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