کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7223154 | 1470556 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultraviolet B emitting Gd doped Al2O3 phosphor - A photoluminescence and electron paramagnetic resonance study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
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چکیده انگلیسی
Al2O3:Gd3+ phosphor was prepared using single step urea combustion method. The prepared phosphor was characterized by X-ray diffraction (XRD), photoluminescence (PL) and electron paramagnetic resonance (EPR) techniques. The formation of the combustion products was confirmed by the XRD analysis. PL studies showed that the Al2O3:Gd3+ phosphor could be excited at 273/276â¯nm, while an ultraviolet (UV) emission centered at â¼ 314/317â¯nm was exhibited. The EPR spectrum of sample exhibited resonance signals due to Gd3+ ion at low symmetry sites in the host lattice. Both PL as well as EPR studies of the sample confirmed the presence of Gd3+ in the Al2O3 matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 171, October 2018, Pages 552-556
Journal: Optik - Volume 171, October 2018, Pages 552-556
نویسندگان
Vijay Singh, G. Sivaramaiah, N. Singh, M.S. Pathak, Anoop K. Srivastava, J.L. Rao, V. Natarajan,