کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7223768 | 1470562 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new type of blue phosphor K3Gd1-xB6O12:xCe3+: Synthesis and photoluminescence properties
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A series of Ce-doped phosphors K3Gd1-xB6O12:xCe3+ (xâ¯=â¯0, 0.005, 0.01, 0.02, 0.03, 0.04) were synthesized by high-temperature solid state reaction method. The luminescence properties were investigated under UV (333â¯nm) excitation. Under 333â¯nm light excitation, K3Gd1-xB6O12:xCe3+ exhibits intense blue emission centered at 405â¯nm, due to the 4f1(2F5/2)â4f°5d1 transition of Ce3+ activator. The optimum doping concentrations was found to be xâ¯=â¯2%. The bi-exponential behavior of the decay curves of phosphor K3Gd0.98B6O12:0.02Ce3+ reveals that the Ce3+ activators can reside in two unique crystallographic distinct sites (Gd3+ sites), which fits well with the XRD analysis. One may expect that K3Gd1-xB6O12:xCe3+ has the potential be used as a green phosphor activated by near near-UV light.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 165, July 2018, Pages 345-350
Journal: Optik - Volume 165, July 2018, Pages 345-350
نویسندگان
Bo Zhang, Rui-Juan Zhang, Qiu Zhong, Wei Wei,