کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5008950 | 1462038 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of temperature on up-conversion luminescence in Er3+/Yb3+ doubly doped lead-free fluorogermanate glasses for optical sensing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of temperature on up-conversion luminescence in Er3+/Yb3+ doubly doped lead-free fluorogermanate glasses for optical sensing Influence of temperature on up-conversion luminescence in Er3+/Yb3+ doubly doped lead-free fluorogermanate glasses for optical sensing](/preview/png/5008950.png)
چکیده انگلیسی
Green and red up-conversion luminescence spectra corresponding to 2H11/2,4S3/2 â 4I15/2 and 4F9/2 â 4I15/2 transitions of Er3+ ions in Er3+/Yb3+ co-doped lead-free fluorogermanate glasses have been examined as a function of Yb3+ concentration and temperature. The green-to-red luminescence intensity ratio diminishes with increasing Yb3+ concentration. The luminescence intensity ratio for bands related to the 2H11/2 â 4I15/2 and 4S3/2 â 4I15/2 transitions of Er3+ was determined and temperature sensitivity parameters were calculated. The maximal temperature sensitivities for Er3+/Yb3+ co-doped glass samples increase with increasing Yb3+ concentration and the highest value of 42.5 Ã 10â4Kâ1 at room temperature was obtained for 0.5Er-3Yb system. Based on gathered data it was concluded that Er3+/Yb3+ co-doped lead-free fluorogermanate glasses are promising for optical temperature sensing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 253, December 2017, Pages 85-91
Journal: Sensors and Actuators B: Chemical - Volume 253, December 2017, Pages 85-91
نویسندگان
Wojciech A. Pisarski, Joanna Janek, Joanna Pisarska, RadosÅaw Lisiecki, Witold Ryba-Romanowski,