کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7133750 | 1461830 | 2018 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Luminescence temperature sensing in visible and NIR spectral range using Dy3+ and Nd3+ doped YNbO4
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Dy3+-and Nd3+-doped YNbO4 powders were prepared using a mechanochemical method followed by annealing, and their photoluminescent properties were examined to assess the possibility of their use in phosphor thermometry. Luminescence intensity ratio technique was used as a temperature read-out scheme for both YNbO4:Dy3+ and YNbO4:Nd3+ samples. The crystalline structure of the samples is confirmed by XRD measurements, while SEM was used for the microstructural and compositional characterization. Sample doped with Dy3+ ions emitting in the blue region has been investigated in the 293-773â¯K temperature range and exhibits maximal relative sensitivity of 1.97%â¯Kâ1 at 300â¯K. YNbO4:Nd3+ sample showed intense NIR emission which fall into the first biological window. When heated from 303 up to 473â¯K relative temperature sensitivity of 0.28%â¯Kâ1 at 300â¯K was achieved. Values of temperature sensitivities show that YNbO4 has a large potential for the development of thermographic phosphors in the blue and NIR spectral ranges when doped with trivalent Dy and Nd, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 270, 1 February 2018, Pages 89-96
Journal: Sensors and Actuators A: Physical - Volume 270, 1 February 2018, Pages 89-96
نویسندگان
Lj. ÄaÄanin Far, S.R. LukiÄ-PetroviÄ, V. ÄorÄeviÄ, K. VukoviÄ, E. Glais, B. Viana, M.D. DramiÄanin,