| Project/Area Number |
14J10865
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 国内 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | The University of Tokyo |
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Principal Investigator |
ROH JIYOUNG (2015) 東京大学, 工学系研究科, 特別研究員(PD)
ROH Jiyoung (2014) 東京大学, 工学系研究科, 特別研究員(DC2)
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| Project Period (FY) |
2014-04-25 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥2,500,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Bicrystal / grain boundary / STEM / structural unit / praseodymium / Zinc oxide / 粒界 / 酸化亜鉛 / 透過電子顕微鏡 / プラセオジム |
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| Outline of Annual Research Achievements |
[0001] symmetric tilt GB of praseodymium doped ZnO is studied by bicrystal in order to find orientation-dependency of the boundary structure.
Investigation has been carried out by transmission electron microscopy and first principles calculation.
GB structures are described by periodic arrangements of structural units. Structure transformation has been found near θ is 30 degree. Each type of SU has specific number of Pr at certain Zn substitutional sites, which have relatively large site volume. Coexistence of SUs of neighboring CSL GBs was found in the intermediately oriented boundaries with a certain ratio. Finally, Pr-doped ZnO [0001] symmetric tilt GBs showed a characteristic behavior as a function of orientation angle, θ.
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| Research Progress Status |
27年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
27年度が最終年度であるため、記入しない。
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