کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1809731 | 1525215 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature dependence of luminescence behavior in Er3+-doped BaY2F8 single crystal
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
BaY2F8 single crystals doped with Er3+ ions have been grown by the temperature gradient method. The absorption, excitation and emission spectra for Er3+-doped BaY2F8 crystals were measured at room temperature (297Â K) and 12Â K. The effect of temperature on the luminescence intensity and effective bandwidth was investigated in the range of 12-297Â K. The temperature dependence of the fluorescence intensity ratio (FIR) for the 522Â nm emission (2H11/2â4I15/2 transition) and the 552Â nm emission (4S3/2â4I15/2 transition) was also studied in the range of 12-297Â K. Based on the fitting FIR curve, the value of the constant term B (2.25) was obtained. The fitting FIR curve and FIR equation may have a potential application in the temperature measurement. In addition, the up-conversion spectrum at room temperature was recorded under excitation of 980Â nm and the up-conversion mechanism was analyzed in detail.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 431, 15 December 2013, Pages 37-43
Journal: Physica B: Condensed Matter - Volume 431, 15 December 2013, Pages 37-43
نویسندگان
Shuai Wang, Yongfeng Ruan, Taiju Tsuboi, Hongshuang Tong, Youfa Wang, Shouchao Zhang,