کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1491149 | 992344 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical characterization of Bi doped SrS nanophosphors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Optical properties of Bi3+ doped SrS nanophosphors synthesized by solid state diffusion method in the presence of sodium thiosulfate as a flux have been reported. UV–vis absorption and photoluminescence (PL) spectra of SrS phosphors doped with trivalent Bi3+ ions either alone or in combination with charge compensating ions, were also studied. These studies reflect that the incorporation of Bi3+ into host lattice is facilitated by the charge compensating Na+ ions. PL emission for SrS:Bi shows a peak at 481 nm at an excitation wavelength of 430 nm, which is attributed to the transition from the 3P1 to 1S0 states of Bi3+. We have also investigated the effect of different dopant concentrations on PL emission intensity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 45, Issue 7, July 2010, Pages 783–786
Journal: Materials Research Bulletin - Volume 45, Issue 7, July 2010, Pages 783–786
نویسندگان
Puja Chawla, S.P. Lochab, Nafa Singh,