Journal
AIP ADVANCES
Volume 7, Issue 3, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4979726
Keywords
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Funding
- Nanotechnology Platform Program of the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan [HNPA 14-058, HNPA 15-064]
- Japan Society for the Promotion of Science (JSPS) [26870012]
- Grants-in-Aid for Scientific Research [26870012] Funding Source: KAKEN
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ZnO photocatalysts in water react with environmental water molecules and corrode under illumination. ZnO nanorods in water can also grow because of water splitting induced by UV irradiation. To investigate their morphological behavior caused by crystal growth and corrosion, here we developed a new laser-equipped high-voltage electron microscope and observed crystal ZnO nanorods immersed in ionic liquid. Exposing the specimen holder to a laser with a wavelength of 325 nm, we observed the photo-corrosion in situ at the atomic scale for the first time. This experiment revealed that Zn and O atoms near the interface between the ZnO nanorods and the ionic liquid tended to dissolve into the liquid. The polarity and facet of the nanorods were strongly related to photocorrosion and crystal growth. (C) 2017 Author(s).
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