2017 Fiscal Year Final Research Report
Opt-electrical properties of nanodiamond films and their application to photovoltaics
| Project/Area Number |
15H04127
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
出口 博之 九州工業大学, 大学院工学研究院, 教授 (30192206)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | カーボン薄膜 / ナノダイヤモンド / 物理気相成長法 / 光電変換 / 同軸型アークプラズマ堆積法 / 半導体 / pn接合 / 少数キャリアのライフタイム |
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| Outline of Final Research Achievements |
Metal-semiconductor-metal (MSM) structures, hetero pn junctions, and homo pn junctions comprising ultrananocrystalline diamond films were prepared. For the MSM structures, it was found that Cu electrodes can suppress the dark current and its employment makes possible clear photodetection in the MSM structure, and their photo-responses in the ultraviolet and visible range might be attributed to photo-carriers generated in nanodiamond grains and grain boundaries. In addition, the Schottky barrier height was estimated from ultraviolet and X-ray photoemission spectra measured with synchrotron radiation, and it was proved that Schottky/ohmic contacts are flexibly formed by selecting metallic materials.
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| Free Research Field |
薄膜工学
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