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Published on: August 6, 2025
Topics in recent studies with high-voltage electron microscopes
1Research Center for Ultrahigh Voltage Electron Microscopy, Osaka University, 7-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan. mori@uhvem.osaka-u.ac.jp
High-voltage electron microscopy (HVEM) offers unique advantages for materials and biological sciences, enabling in-depth studies of atomic-level phenomena. Continued advancements in HVEM technology are crucial for future scientific discoveries.
Area of Science:
- Materials Science
- Biological Science
- Microscopy
Background:
- Conventional electron microscopy has limitations.
- High-voltage electron microscopy (HVEM) provides unique capabilities.
- HVEM is valuable in both materials and biological sciences.
Purpose of the Study:
- To review recent studies utilizing high-voltage electron microscopes (HVEMs).
- To highlight the advantages and applications of HVEM.
- To emphasize the importance of continued HVEM development.
Main Methods:
- Utilizing the advantages of HVEM for continuous observation of phenomena.
- Employing various electron microscopy techniques simultaneously.
- Leveraging large observable specimen thickness for electron tomography.
Main Results:
- Enabled in-depth studies on crystalline-to-amorphous transitions, point defect motion, and dislocation loop diffusion.
- Facilitated advanced materials science analyses, including surface reconstruction and nanowire growth mechanisms.
- Demonstrated the unique insights provided by HVEM in studying atomic-level processes.
Conclusions:
- HVEM is an indispensable tool for specific scientific investigations.
- The unique advantages of HVEM facilitate studies not possible with conventional methods.
- Continued efforts to improve HVEM technology are essential for future research.
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