کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7887219 | 1509788 | 2018 | 42 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermometry of red nanoflaked SrAl12O19:Mn4+ synthesized with boric acid flux
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
This paper presents the luminescence properties and potential of red SrAl12O19:Mn4+ (SAO:Mn4+) phosphor for optical thermometry application. The SAO crystal consisted of a spinel block along with two mirror-like blocks. The Al3+/Sr2+ molar ratio of the precursor solution affected the crystalline-phases, morphology, and photoluminescence of the phosphor. The addition of flux H3BO3 promoted the growth of hexagonal-nanoflakes and enhanced the external quantum efficiency of phosphor 2.6-fold. The absolute sensitivity Sa and relative sensitivity Sr of SAO:Mn4+ showed a linear function of the temperature. The value of Sa was 4.17â¯Ãâ¯10â3 Kâ1, and the maximum Sr was 2.70â¯Ãâ¯10â3 Kâ1 at 393â¯K. A stable emission color was observed even with a change in temperature and a bright red light was seen in both daylight and a darkroom.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 10, July 2018, Pages 11665-11673
Journal: Ceramics International - Volume 44, Issue 10, July 2018, Pages 11665-11673
نویسندگان
Su-Hua Yang, Yi-Ching Lee, Ying-Che Hung,