On the Radiation Stability of ZnO Powders Modified with Own Nanoparticles
- 作者: Mikhailov M.1, Yuryev S.1, Lapin A.1, Goronchko V.1
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隶属关系:
- Tomsk State University of Control Systems and Radioelectronics
- 期: 编号 9 (2023)
- 页面: 52-57
- 栏目: Articles
- URL: https://journals.rcsi.science/1028-0960/article/view/137812
- DOI: https://doi.org/10.31857/S1028096023090078
- EDN: https://elibrary.ru/ZMCKHS
- ID: 137812
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详细
Changes in the diffuse reflectance spectra (∆ρλ) and integral absorption coefficient (Δаs) in the range of 0.2–2.5 µm were studied after modification of zinc oxide powders with few µm particles (mZnO) via own nZnO nanoparticles of various concentrations in the range of 0.1–10.0 wt %. A decrease in the reflection coefficient (ρ) in the range of 0.4–1.0 µm and its increase in the range of 1.0–2.5 µm in the modified mZnO/nZnO powders was established. Electron irradiation (Е = 30 keV, F = 2 × 1016 cm–2) of mZnO, nZnO, and mZnO/nZnO powders with different concentrations of nanoparticles showed that the optimal concentration of nanoparticles is 5 wt %. The radiation stability of the modified powder at this concentration increased by a factor of 2.95, the radiation stability of a nanopowder is more than 2 times higher than that of a powder with particles a few microns in size. When irradiated with electrons all three types of powders form their own point defects, which absorb in the visible region, and free electrons, which absorb in the near-IR region.
作者简介
M. Mikhailov
Tomsk State University of Control Systems and Radioelectronics
编辑信件的主要联系方式.
Email: membrana2010@mail.ru
634000 Russia, Tomsk
S. Yuryev
Tomsk State University of Control Systems and Radioelectronics
编辑信件的主要联系方式.
Email: yusalek@gmail.com
634000 Russia, Tomsk
A. Lapin
Tomsk State University of Control Systems and Radioelectronics
Email: yusalek@gmail.com
634000 Russia, Tomsk
V. Goronchko
Tomsk State University of Control Systems and Radioelectronics
Email: yusalek@gmail.com
634000 Russia, Tomsk
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