کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5441515 | 1510389 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectroscopic investigations of phosphate-borate-fluoride glass doped with Tb3Â +/Eu3Â +
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The luminescence of Li2O-B2O3-P2O5-CaF2 glass doped with Tb3Â +/Eu3Â + under electron beam excitation have been investigated in detail. The excitation spectra, photoluminescence (PL), pulse cathodoluminescence (PCL) and luminescence decay kinetics were analyzed. The energy transfer efficiency from Tb3Â + to Eu3Â + ions was found to increase at increased concentration of Eu3Â + ions. As the concentration of europium grew, the luminescence quenching was observed. The energy transfer from Tb3Â + to Eu3Â + was observed to occur through level 5D4 of terbium ions. It is shown that the luminescence decay kinetics of terbium ions at 485, 544, 622 and 700Â nm depends on europium concentration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 457, 1 February 2017, Pages 31-35
Journal: Journal of Non-Crystalline Solids - Volume 457, 1 February 2017, Pages 31-35
نویسندگان
D. Valiev, K. Belikov,