کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7839789 | 1505860 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tunable broad photoluminescence in Cu+/Mn2+ co-doped oxyfluoride glasses sintered in air atmosphere
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In order to explore luminescent materials for spectra modification, a series of Cu+ and Mn2+ doped oxyfluoride glasses were successfully prepared via melt-quenching method. A simple, efficient and universal method was used to gain monovalent copper ions in air atmosphere by adding aluminum powder as reducing agent. The luminescent properties of glasses were systematically investigated through optical absorption, photoluminescence and decay curves. Under ultraviolet excitation, Cu+ singly doped glass emits broad luminescence band, and its emission band shifts to red with increasing excitation wavelength. Through an efficient energy transfer process, Cu+-Mn2+ co-doped samples generate the varied hues from blue to white and eventually to red. Luminescent quantum yield and energy transfer efficiency were obtained. Our results demonstrate that Cu+-Mn2+ co-doped glasses have potential application in white LEDs as well as photosynthesis of green plants.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 202, October 2018, Pages 186-191
Journal: Journal of Luminescence - Volume 202, October 2018, Pages 186-191
نویسندگان
Deng Ke Xu, Ya Fei Shi, Xiu Sha Peng, Rong Fei Wei, Fang Fang Hu, Hai Guo,