کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11006554 1505858 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermoluminescence and radioluminescence of α-Al2O3:C,Mg at high temperatures
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Thermoluminescence and radioluminescence of α-Al2O3:C,Mg at high temperatures
چکیده انگلیسی
A α-Al2O3:C,Mg single crystal was investigated by means of optical absorption and photoluminescence measurements aimed at the identification of defects involved in the luminescence process. It was also investigated by thermoluminescence (TL) measurements as a function of the spectral emission in the 1.7-5.0 eV range. Radioluminescence measurements under X-ray excitation as a function of the temperature, from room temperature up to 400 °C were executed. These measurements revealed the presence of F, F-type, F-aggregate, and Mg-perturbed F-type and F-aggregate centers, and their thermal quenching behavior. Further, the role of these defects as recombination centers in the TL process was revealed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 204, December 2018, Pages 598-602
نویسندگان
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