| Project/Area Number |
25630128
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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 |
Electronic materials/Electric materials
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| Research Institution | Saga University |
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Principal Investigator |
ZHENG Xu-Guang 佐賀大学, 工学(系)研究科(研究院), 教授 (40236063)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 水酸塩化物 / 薄膜形成 / 強誘電体 / 腐食 / 強誘電性膜 / 強誘電性メカニズム / 腐食薄膜 |
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| Outline of Final Research Achievements |
Hydroxyl salts of the type M2(OH)3X (X = Cl, Br, or I) have been known for a long time. The most familiar might be the hydroxyl chloride Cu2(OH)3Cl (atacamite), which forms naturally on copper and bronze as a green patina and is widely recognized as imparting the characteristic hue to the Statue of Liberty. It may also exist as bio-minerals in living organisms such as in the jaws of the marine bloodworm and crocodile. Recently, we found ferroelectricity in some hydroxyl salts. On these backgrounds, by simulating the natural erosion, this research aimed at directly forming ferroelectric thin films of hydroxyl salts on metal surfaces, which can be developed into an easily-applicable technology for bio-friendly electronics.
Through investigating the erosion behaviors of metals in various acid environmental conditions, we have succeeded in directly forming thin films of hydroxyl salts on metal surfaces by erosion. Further development can be expected.
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