کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5399754 | 1505906 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Tm3+ codoping on the near-infrared and upconversion emissions of Er3+ in TeO2-ZnO-ZnF2 glasses
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, we report the near-infrared emission and upconversion of Er3+-Tm3+ codoped fluorotellurite TeO2-ZnO-ZnF2 glasses for different Tm3+ concentrations by using steady-state and time-resolved spectroscopy. A broad emission from 1350 to 1700Â nm corresponding to the 3H4â3F4 (Tm3+) and 4I13/2â4I15/2 (Er3+) emissions which cover the complete telecommunication window of the wavelength-division-multiplexing transmission systems is observed. The full width at half-maximum of this broadband increases with increasing Tm3+/Er3+ concentration ratio up to a value of~150Â nm. Energy transfer between Er3+ and Tm3+ ions is also observed and analyzed by both the temporal behavior of the near-infrared luminescence and the effect of Tm3+ codoping on the visible upconversion of Er3+ ions. The addition of Tm3+ reduces the upconverted green emission due to Er3+âTm3+ energy transfer whereas the red emission is enhanced due to the cross-relaxation 3F4â3H6(Tm3+):4I11/2â4F9/2(Er3+) process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 154, October 2014, Pages 136-141
Journal: Journal of Luminescence - Volume 154, October 2014, Pages 136-141
نویسندگان
A. Miguel, M.A. Arriandiaga, R. Morea, J. Fernandez, J. Gonzalo, R. Balda,