کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1886729 | 1043551 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Properties of ZnO nanocrystals prepared by radiation method Properties of ZnO nanocrystals prepared by radiation method](/preview/png/1886729.png)
Zinc oxide nanoparticles were prepared by irradiation of aqueous solutions containing zinc(II) ions, propan-2-ol, polyvinyl alcohol, and hydrogen peroxide. Zinc oxide was found in solid phase either directly after irradiation, or after additional heat treatment. Various physicochemical parameters, including scintillation properties of prepared materials, were studied. After decomposition of impurities and annealing of oxygen vacancies, the samples showed intensive emission in visible spectral range and well-shaped exciton luminescence at 390–400 nm. The best scintillating properties had zinc oxide prepared from aqueous solutions containing zinc formate as initial precursor and hydrogen peroxide. Size of the crystalline particles ranged from tens to hundreds nm, depending on type of irradiated solution and post-irradiation thermal treatment.
Journal: Radiation Physics and Chemistry - Volume 79, Issue 1, January 2010, Pages 27–32