کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7839902 | 1505861 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and spectral properties of rare-earth free tunable full-color-emitting Si-BCNO phosphors
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and spectral properties of rare-earth free tunable full-color-emitting Si-BCNO phosphors Synthesis and spectral properties of rare-earth free tunable full-color-emitting Si-BCNO phosphors](/preview/png/7839902.png)
چکیده انگلیسی
The rare-earth free tunable full-color-emitting Si-BCNO phosphors were synthesized at low temperature (below 800â¯Â°C) for 45â¯min by solid state reaction method using urea, boric acid, polyethylene glycol and silica as raw materials. The prepared samples exhibited single, distinct and broad photoluminescence emission bands varied from blue (470â¯nm) to red (620â¯nm) upon excitation at 370â¯nm by varying the concentrations of Si and sintering temperatures. The decay curves signified that the luminescence was induced by two luminescence centers, related to longer lifetime Ï1 and shorter lifetime Ï2. The temperature-dependent PL intensity of the phosphor has been also investigated, which performs good thermal stability. It is believed that the Si-BCNO phosphor could be a possible material for multicolor light-emitting diodes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 201, September 2018, Pages 90-97
Journal: Journal of Luminescence - Volume 201, September 2018, Pages 90-97
نویسندگان
Hang Chen, Zhengyan Zhao, Jianyan Ding, Xin Ding, Yaxin Cao, Yuhua Wang,