کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1493244 1510774 2016 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical temperature sensing based on the luminescence from YAG:Pr transparent ceramics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Optical temperature sensing based on the luminescence from YAG:Pr transparent ceramics
چکیده انگلیسی
The YAG:Pr transparent ceramic was fabricated using a conventional solid-state reactive method to explore its possible application in optical thermometry. Photoluminescence and temperature-dependent luminescence were elaborately investigated under 452 nm excitation. The ceramic showed two intrinsic emission bands at 488 and 594 nm, which were attributed to characteristic Pr3+: 3P0 → 3H4 and 3P1 → 3H6 transitions, respectively. Down-conversion emissions from the two thermally coupled excited states of Pr3+ were recorded in the temperature range of 293-593 K. The Boltzmann distribution theory was adopted to interpret the temperature-dependent luminescence of Pr3+. The temperature sensitivity exhibited an increasing trend with the increase of temperature, typically, 0.0025 K−1 at 593 K. The results indicated that the present ceramic was a promising candidate for optical temperature sensor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 60, October 2016, Pages 394-397
نویسندگان
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