کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5404298 1392776 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Green emitting long lasting phosphorescence (LLP) properties of Mg2SnO4:Mn2+ phosphor
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Green emitting long lasting phosphorescence (LLP) properties of Mg2SnO4:Mn2+ phosphor
چکیده انگلیسی
A novel long-lasting phosphorescence phosphor, Mn2+-activated Mg2SnO4, has been synthesized and its optical properties have been investigated. The Mg2SnO4:Mn2+ emits green light with high luminance, upon UV irradiation, centered at 499 nm from the spin forbidden transitions of the d-electrons in Mn2+ ions. The CIE chromaticity coordinates of the Mg2SnO4:Mn2+ phosphor are x=0.0875 and y=0.6083 under 254 nm UV excitation. The phosphorescence can be observed by the naked eyes (0.32 mcd/m2) in the dark clearly for over 5 h after the 5 min UV irradiation. Thermoluminescence has been studied and the mechanism of the long-lasting phosphorescence has been discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 118, Issue 2, June 2006, Pages 173-178
نویسندگان
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