کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5400487 | 1505917 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced luminescence of Ba3Si6O9N4:Eu2+ phosphors by codoping with Ce3+, Mn2+, and Dy3+ ions
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel phosphor Ba3Si6O9N4 doped with Eu and M (M=Ce3+, Mn2+ and Dy3+) has been synthesized by a solid state reaction at 1350 °C for 6 h under 90%N2/10%H2 atmosphere. It could be efficiently excited by UV-blue light (280-500 nm) and showed a single intense broadband emission (470-625 nm). Suitable excitation range make it match well with the emission of near-UV LEDs or blue LEDs. It was found that the luminescence intensity of the Ba3Si6O9N4:Eu2+ phosphors can be efficiently enhanced by codoping with M. The addition of M in Ba3Si6O9N4:Eu2+ remarkably enhances the luminescent intensity by the factor of 198%, 166% and 188% for Ce3+, Mn2+ and Dy3+, respectively. The Ba3Si6O9N4:Eu2+ phosphor has potential application as a phosphor for white light-emitting diodes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 143, November 2013, Pages 459-462
Journal: Journal of Luminescence - Volume 143, November 2013, Pages 459-462
نویسندگان
Chenxia Li, Hong Chen, Youjie Hua, Lanlan Yu, Qingyun Jiang, Degang Deng, Shilong Zhao, Hongping Ma, Shiqing Xu,