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- W1899160967 abstract "AbstractTrivalent Dy doped SrAl2O4 phosphors were synthesised via the sol–gel combustion route at 600°C. The dopant concentration-dependent photoluminescence (PL) and afterglows were investigated for the SrA12O4:Dy3+ phosphors by means of scanning electron microscope, X-ray diffractometer and PL spectrophotometer, respectively. Each PL spectrum of the SrA12O4:Dy3+ phosphors consists of a broad emission band originating from the host matrix SrA12O4 and two sharp band emissions of Dy3+ ions at 480 and 575 nm. The integrated PL intensity of the SrA12O4:Dy3+ phosphors increases with the concentration of Dy3+ as it increases from 0.125 to 3 mol%, and then drops as the concentration of Dy3+ increases further from 3 to 32 mol%. It is found that broadband green afterglow from the SrA12O4:Dy3+ phosphors heavily dependent on the concentration of Dy3+ ions, and that the longest afterglow was observed in the SrA12O4:Dy3+ phosphors when the concentration of Dy3+ was around 16 mol%. A model is constructed to interpret ..." @default.
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- W1899160967 date "2015-07-01" @default.
- W1899160967 modified "2023-09-23" @default.
- W1899160967 title "Dopant concentration-dependent photoluminescence and afterglow of SrAl2O4:Dy3+ phosphors" @default.
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- W1899160967 doi "https://doi.org/10.1179/1432891715z.0000000002050" @default.
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