Restoration of negative electron affinity feature on high-quality diamond surfaces using liquid process
| Project/Area Number |
26600085
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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 |
Crystal engineering
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| Research Institution | Osaka University |
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Principal Investigator |
Ito Toshimichi 大阪大学, 工学(系)研究科(研究院), 教授 (00183004)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | CVDダイヤモンド / マイクロ波プラズマCVD / 液中プロセス / 負性電子親和力 / 超音波 / キャビテーション / マイクロ波プラズマ / 多結晶ダイヤモンド |
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| Outline of Final Research Achievements |
In order to develop a conventional process to restore negative electron affinity (NEA) features for which electrons can be easily emitted from the solid surface, a high-quality microwave-plasma CVD diamond having a NEA surface that was converted to a positive electron affinity has been treated suitably with ultrasonic vibrations in a special solution, leading to the fact that its NEA feature can be restored partially. Then, a possible semi-quantitative characterization method of the diamond NEA feature has been proposed that is based on an quantitative analysis of local secondary electron signal intensity measured with a conventional scanning electron microscope. However, both improvement of the controllability and clarification of the mechanism of the concerned NEA restoration process have been put to a future study.
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Report
(3 results)
Research Products
(1 results)
