Abstract
We synthesized ZnO nanoparticles by laser ablation of a Zn target in water at pressures up to 30 MPa. We observed the enhancement of the crystallinity of synthesized ZnO nanoparticles when high pressure was applied to ambient water. In addition, we found that ZnO nanoparticles with smaller sizes were synthesized by pressurizing ambient water. Considering our previous understanding on the effect of high pressure applied to ambient liquid, the controls of the structure and the size of nanoparticles were considered to be obtained via the controls of the dynamics of laser ablation plasma and ablation-induced cavitation bubble.
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Acknowledgements
This work was supported by a Grant-in-Aid for Scientific Research on Innovative Areas “Frontier Science of Interactions between Plasmas and Nano-Interfaces” (No. 21110004) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. W. Soliman would like to thank the financial support from the Egyptian Ministry of Higher Education during her stay in Nagoya University.
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Soliman, W., Takada, N., Koshizaki, N. et al. Structure and size control of ZnO nanoparticles by applying high pressure to ambient liquid in liquid-phase laser ablation. Appl. Phys. A 110, 779–783 (2013). https://doi.org/10.1007/s00339-012-7152-7
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DOI: https://doi.org/10.1007/s00339-012-7152-7