کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1486678 1510563 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sol–gel combustion synthesis and luminescence of Y4Al2O9:Eu3+ nanocrystal
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Sol–gel combustion synthesis and luminescence of Y4Al2O9:Eu3+ nanocrystal
چکیده انگلیسی

Y4Al2O9:Eu3+ phosphor was synthesized through a sol–gel combustion method. The Y4Al2O9 phase can form through sintering at 800 °C. This temperature is much lower than that required via the solid state reaction method. The average grain size of the phosphor was about 30 nm. Compared with the amorphous phosphor, the charge transfer band of crystalline phosphor shows a blue shift. The emission of Y4Al2O9:Eu3+ indicates the existence of two luminescent centers, in agreement with the crystal structure of Y4Al2O9. Higher doping concentration could be realized in Y4Al2O9 nanocrystal host lattice. This indicates that the sol–gel combustion synthesis method can increase emission intensity and quenching concentration due to a good distribution of Eu3+ activators in Y4Al2O9 host.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 351, Issues 37–39, 1 October 2005, Pages 2979–2982
نویسندگان
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