کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7887220 | 1509787 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Linear response fluorescent temperature-sensing properties based on Stark sublevels of Er3+-doped Pb(Mg1/3Nb2/3)O3-PbTiO3-Pb(Yb1/2Nb1/2)O3 ceramics
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
The Er3+ doped 0.84(PMN-PT)â0.14PYN ceramics were employed as a temperature-sensing material. The obtained compounds exhibit strong visible upconversion (UC) fluorescence under a 980-nm diode laser excitation. On account of the Stark split effect, the 2H11/2, 4S3/2, and 4F9/2 levels of Er3+ split into two Stark sublevels, respectively. The fluorescence intensity ratios (FIR) between these sublevels were calculated in a temperature range of 133-573â¯K, and a linear FIR vs. temperature relation has been found. FIR of A/B shows a wide temperature sensing range with a relatively low sensitivity of 0.003â¯Kâ1. Meanwhile E/C illustrates the highest sensitivity of 0.0134â¯Kâ1 but in the smallest temperature range 453-573â¯K. FIR technique provides us a optical thermometric method with constant sensitivity in a wide temperature range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 11, 1 August 2018, Pages 12670-12675
Journal: Ceramics International - Volume 44, Issue 11, 1 August 2018, Pages 12670-12675
نویسندگان
Teng Zheng, Laihui Luo,