کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5400063 | 1505913 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dependence of the 5D0â7F4 transitions of Eu3+ on the local environment in phosphates and garnets
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An overview in details of the luminescence of some materials doped with Eu3+ is given in this paper. The series of samples (garnet structure compounds and phosphates) were synthesized by citric acid or glycolate sol-gel method, and the conventional high temperature solid-state reaction in order to investigate 5D0â7F1, 5D0â7F2, and 5D0â7F4 transitions of Eu3+ ions in these compounds. The optical properties of Eu3+ are discussed with regard to the influence of site symmetry in the compound, electronegativity (EN) and ionic radius of M3+ cations (M=Al, Ga, Y, La, Gd and Lu). In addition, luminous efficacies (LE) and percentage fraction of the 5D0â7F4 transition (integral range of 680-720Â nm) with respect to the whole Eu3+ emission spectrum (integral range of 570-720Â nm) are calculated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 147, March 2014, Pages 290-294
Journal: Journal of Luminescence - Volume 147, March 2014, Pages 290-294
نویسندگان
Ramunas Skaudzius, Arturas Katelnikovas, David Enseling, Aivaras Kareiva, Thomas Jüstel,