کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5400266 | 1505911 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of methane annealing ambience on the structure and photoluminescence of BCNO phosphors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of methane annealing ambience on the structure and photoluminescence of BCNO phosphors Effects of methane annealing ambience on the structure and photoluminescence of BCNO phosphors](/preview/png/5400266.png)
چکیده انگلیسی
Green-emitting BCNO phosphors are synthetized by low temperature liquid method. And then the properties of structure and photoluminescence of BCNO phosphors annealed under methane ambience at 500-700 °C for 4 h and at 600 °C for 3-6 h are researched. When the phosphor was annealed for the same time period, the crystallinity was improved first and then became poor as the annealing temperature increased. In addition, the emission peak shifted to high wavelength, and the maximum shift span reached up to 40 nm. When the phosphor was annealed at the same temperature, the crystallinity was improved and the emission peak was red-shifted. The multi-peaks fitting results indicated that three luminescence mechanisms which were C-related defect, B-O luminescence center and other defects or vacancies played important roles in BCNO phosphors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 149, May 2014, Pages 231-235
Journal: Journal of Luminescence - Volume 149, May 2014, Pages 231-235
نویسندگان
Fang Lu, Xinghua Zhang, Zunming Lu, Chengchun Tang,