کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5397654 | 1505878 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photoluminescence and afterglow of Mn2+ doped lithium zinc silicate
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Novel green emitting long lasting phosphorescence (LLP) Li1.14Zn1.43SiO4:Mn2+ (LZS: Mn2+) was prepared successfully through a conventional solid-state reaction. Phase purity was checked by X-ray diffraction. The photoluminescence and afterglow properties of as-prepared phosphors were studied systematically by diffuse reflectance spectra, photoluminescence spectra, decay curves, afterglow spectra and thermoluminescence glow curves measurements. The photoluminescence spectra and LLP spectra indicated that LZS: Mn2+ phosphors exhibits green emission center at 526Â nm originated from 4T1â6A1 transition of Mn2+. The duration of Mn2+ doped Li1.14Zn1.43SiO4 phosphors can last about 1Â h. Thermoluminescence glow curves indicated that the LLP of LZS: Mn2+ phosphor was generated by the suitable trap depth. Based on the experimental results, a model was constructed to discuss the mechanism of afterglow briefly.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 183, March 2017, Pages 68-72
Journal: Journal of Luminescence - Volume 183, March 2017, Pages 68-72
نویسندگان
Feihong Xue, Yihua. Hu, Liumin Fan, Xiaojuan Wang, Guifang Ju, Miao He, Yang Lv,