2023 Fiscal Year Final Research Report
Developments in high-precision atomic position measurement in real space
| Project/Area Number |
21K18196
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| Research Category |
Grant-in-Aid for Challenging Research (Pioneering)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 29:Applied condensed matter physics and related fields
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| Research Institution | Japan Fine Ceramics Center |
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Principal Investigator |
Kobayashi Shunsuke 一般財団法人ファインセラミックスセンター, その他部局等, 主任研究員 (60714623)
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| Co-Investigator(Kenkyū-buntansha) |
穴田 智史 一般財団法人ファインセラミックスセンター, その他部局等, 上級研究員 (40772380)
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| Project Period (FY) |
2021-07-09 – 2024-03-31
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| Keywords | 走査透過電子顕微鏡 / 情報科学 / 計測 / エネルギー関連材料 / 触媒 / 電池 / 欠陥 |
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| Outline of Final Research Achievements |
In energy-related materials, structural control at the atomic level is becoming more important, and measurement techniques to evaluate small changes in atomic arrangement at local regions, such as interfaces and surfaces, are desired. In this study, we aimed to achieve sub-picometer scale measurement accuracy in real space using scanning transmission electron microscopy (STEM). We successfully improved the measurement precision by more than twofold, enabling precise atomic position measurements at the sub-picometer scale. As an application, we successfully measured atomic arrangement changes, which was previously challenging.
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| Free Research Field |
電子顕微鏡法による構造解析
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| Academic Significance and Societal Importance of the Research Achievements |
本研究成果における高精度原子位置計測の実現は, これまで困難であった様々な材料分野へもSTEM法の適用が可能となることを意味している. すなわち, 電子顕微鏡分野における学術的意義だけではなく, 本計測技術の応用を通して得られる原子分解能レベルでの新たな知見は, 低炭素社会実現へ向けたエネルギー関連材料開発へ大きく貢献する社会的意義のある研究成果でもある.
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