| Project/Area Number |
15K18202
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical properties of metals/Metal-base materials
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Ishikawa Ryo 東京大学, 大学院工学系研究科(工学部), 助教 (20734156)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | インターカレーション / 電子顕微鏡 / 単原子ドーパント / 蛍光体 / 走査透過型電子顕微鏡 / 二次元物質 / 低加速電子顕微鏡法 / 原子分解能 / モアレ |
|---|
| Outline of Final Research Achievements |
After the success of GaN in blue-light-emission, researchers are exploring new materials for optoelectronic devises working in ultraviolet or far-ultraviolet wavelength ranges. In this study, we have investigated hexagonal boron nitride (h-BN) with doping rare-earth elements, exhibiting light luminescence. To elucidate the origin of light emission, we have used atomic-resolution scanning transmission electron microscopy, suggesting that the heavy dopants are location not in the lattice but between inter-layers: the dopants are intercalating. This result indicates that layer compounds could be useful to dope functional elements with relatively larger ionic radii compared to the bulk constituent elements.
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