کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5442932 | 1510771 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of reducing Lu3+ content on the fabrication and scintillation properties of non-stoichiometric Lu3âxAl5O12:Ce ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of reducing Lu3+ content on the fabrication and scintillation properties of non-stoichiometric Lu3âxAl5O12:Ce ceramics Effect of reducing Lu3+ content on the fabrication and scintillation properties of non-stoichiometric Lu3âxAl5O12:Ce ceramics](/preview/png/5442932.png)
چکیده انگلیسی
Lu3âxAl5O12:Ce optical ceramics (Lu3âxAG:Ce, x = 1, 2, 3 and 4 at.%, respectively) with Lu3+ compositions ranging from 1 to 4 at.% below stoichiometry content were fabricated by solid state reaction method and further optimized by an air-annealing process. The effect of Lu3+ deficiency on the optical, luminescence and scintillation properties of such a non-stoichiometric Lu3âxAl5O12:Ce ceramics was investigated. Significant influence in the material densification was found leading to strong changes in the transparency, radioluminescence (RL) and scintillation response of these ceramics. Within the range of 1-4 at.% Lu3+ deficiency, LuAl antisite defects were suppressed effectively and the Lu3âxAG:Ce ceramics displayed an extremely high RL intensity which reaches â¼4 times higher than that of the latest commercial LuAG:Ce single crystals while its transparency deteriorated. The microstructure, presence of foreign phases and charge traps acting in scintillation mechanism were also characterized by means of SEM, back scattered electron imaging and thermoluminescence techniques, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 63, January 2017, Pages 179-184
Journal: Optical Materials - Volume 63, January 2017, Pages 179-184
نویسندگان
Shuping Liu, Jiri A. Mares, Vladimir Babin, Chen Hu, Huamin Kou, Carmelo D'Ambrosio, Yubai Pan, Martin Nikl,