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• W1992279655 abstract "• The Sr 3 MgSi 2 O 8 : Ce 3+ , Li + , Eu 2+ phosphors were synthesized by sol–gel chemical method. • All the samples were heated under carbon reducing atmosphere for 3 h. • The photoluminescence properties were studied in detail. • The CIE values of the phosphors were measured under UV (365 nm) LED source. • The phosphors show the CIE values in the cool white region which could be applied for SSL. The Sr (3−(2 x + y )) MgSi 2 O 8 : (Ce 3+ , Li + ) x , Eu y 2+ phosphors were prepared using urea assisted sol–gel method, calcined under carbon reducing atmosphere. The Ce 3+ ion concentration was fixed at 0.01 mol and Li + ion was used as the charge compensator for Ce 3+ ion. The Eu 2+ ion concentration was varied as 0.005, 0.01 and 0.02 mol to realize the optimum emission, and it was found that the critical concentration is 0.01 mol. The Sr 3 MgSi 2 O 8 : Ce 3+ 0.01 , Li + 0.01 phosphor showed the characteristic 4f 0 5d 1 –4f 1 transition of Ce 3+ at 414 nm, which could be due to the occupation of Ce 3+ at Sr 2+ site, whereas Sr 3 MgSi 2 O 8 : Eu 2+ 0.01 phosphor showed the characteristic 4f 6 5d 1 –4f 7 transition of Eu 2+ at 470 nm and 570 nm, which were attributed to the occupation of Eu 2+ ion at Sr 2+ (I) site and Sr 2+ (II, III) sites respectively. Codoping of Ce 3+ ion with Eu 2+ ion enhanced the emission intensity compared to the Ce 3+ alone and Eu 2+ alone doped Sr 3 MgSi 2 O 8 . It showed both the blue emission of Ce 3+ and blue-green to orange emission of Eu 2+ with the peak maximum at 460 nm, which could be due to the occupation of Ce 3+ and Eu 2+ ion in the Sr 2+ site respectively. The CIE chromaticity coordinates measured on the Sr 3 MgSi 2 O 8 : Ce 3+ , Li + , Eu 2+ phosphors excited under ultraviolet (365 nm) source showed the values lie in cool white light region could be applied to solid state lighting." @default.
• W1992279655 created "2016-06-24" @default.
• W1992279655 creator A5039378702 @default.
• W1992279655 creator A5073133457 @default.
• W1992279655 date "2015-06-01" @default.
• W1992279655 modified "2023-09-24" @default.
• W1992279655 title "Sol–gel synthesis and luminescence characteristics of Sr(3−(2x+y))MgSi2O8: (Ce3+,Li+)x, Euy2+ phosphor for solid state lighting" @default.
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• W1992279655 doi "https://doi.org/10.1016/j.optmat.2015.01.035" @default.
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