کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7908617 | 1510776 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photoluminescence and energy transfer properties of Eu2+ and Tb3+ co-doped gamma aluminum oxynitride powders
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Gamma-AlON: 0.2Eu2+, Tb3+ phosphors were firstly synthesized via a high temperature solid-state reaction. For the phosphors, luminescence properties as well as energy transfer mechanism were investigated in detail. The energy transfer from Eu2+ to Tb3+ in the γ-AlON host was ascribed to the dipole-dipole mechanism, and the efficiency and critical distance in the energy transfer process were also estimated. γ-AlON: 0.2Eu2+, Tb3+ phosphors showed a broad-band emission centered at about 405 nm and other several emission peaks, which were assigned to the 5d-4f transition of Eu2+ ions and the 5D4-7FJ (J = 6, 5, 4, and 3) characteristic transitions of Tb3+ ions, respectively. The results indicated that γ-AlON: 0.2Eu2+, Tb3+ phosphors have great potential application in white light-emitting diodes due to its broad-band excitation in the ultraviolet range and the high-efficient green light emission.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 58, August 2016, Pages 290-295
Journal: Optical Materials - Volume 58, August 2016, Pages 290-295
نویسندگان
Jiantao Zhang, Chaoyang Ma, Zicheng Wen, Miaomiao Du, Jiaqi Long, Ran Ma, Xuanyi Yuan, Junting Li, Yongge Cao,