کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8161169 | 1525114 | 2018 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A potential green emitting citrate gel synthesized NaSrBO3:Tb3+ phosphor for display application
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A potential green emitting NaSrBO3:Tb3+ (1-9Â mol%) phosphor was synthesized by a citrate gel combustion method. X-ray diffraction patterns confirmed the monoclinic phase of the phosphor. The phosphor emitted intense green emission under near-UV and electron excitation due to the characteristic transitions 5D4â7F6(488Â nm),5D4â7F5(544Â nm),5D4â7F4(586Â nm) and 5D4â7F3(622Â nm) of Tb3+ ions. The optimal molar concentration of Tb3+ ions was found to be 6Â mol%, after that concentration quenching occurred. The dipole-dipole interaction was found to be accountable for energy transfer between the Tb3+ ions. X-ray photoelectron spectroscopy was carried out to analyze the chemical states of the elements and suggest that terbium was mostly presented in the (+3) valance state in the phosphor. The approximated Commission Internationale de lâ²Eclairage coordinates for the PL (0.31, 0.61) and CL (0.33, 0.57) were found to be very close to the well-known green emitting phosphor. The obtained results suggest that the studied phosphor could be an ultimate choice for green emission in display applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 535, 15 April 2018, Pages 189-193
Journal: Physica B: Condensed Matter - Volume 535, 15 April 2018, Pages 189-193
نویسندگان
A.K. Bedyal, Vinay Kumar, H.C. Swart,