2016 Fiscal Year Final Research Report
Improvement of Thermionic Emission Performance by Activation of Semiconductor Emitter and Its Application for Photon Enhanced Thermionic Energy Conversion
| Project/Area Number |
26420228
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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 |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 熱電子発電 / 太陽光発電 / 半導体 / プラズマ応用 |
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| Outline of Final Research Achievements |
In order to develop the thermionic energy converter operated lower than 870 K, the emission performance of plasma treated semiconductor emitter was studied. In addition, to make clear the problem of thermionic emission from semiconductor surface, the atomic structure on plasma treated surfaces was also investigated with the characteristics of thermionic emission.
As the results of the emission measurement using silicon and diamond emitter, the emission current of plasma treated surface was increased, the current density of mA/cm2 was obtained in the range from 670-820 K. The stability of Cs on heated surface was improved by plasma surface oxidation. The emission current from plasma treated surface was higher than the surface without plasma treatment.
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| Free Research Field |
プラズマ応用
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