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- W2980688053 endingPage "116828" @default.
- W2980688053 startingPage "116828" @default.
- W2980688053 abstract "A series of phosphors such as Sr2YNbO6:Mn4+ (SYNO:Mn4+) were synthesized by solid state reaction method. Their phase structure and luminescent properties were characterized by X-ray powder diffraction (XRD), fluorescence spectrophotometer and ultraviolet–visible spectrophotometer. The synthesized samples can be effectively stimulated by 250–550 nm ultraviolet and blue light, resulting in strong far-red emission. The emission peak of the samples is about 685 nm, which corresponds to the 2E→4A2 transition of Mn4+. When the doping concentration of Mn4+ reaches x = 0.003, the concentration quenching occurs due to the dipole-dipole reaction. Memorably, Al3+ dopants can substitute Nb5+ sites, and efficaciously enhance the emission intensity mainly because Al3+ ions can interrupt energy transfer among Mn4+ ions. The optimum doping concentration of Al3+ is 0.8% and the PL intensity of SYNO:0.003Mn4+, 0.008Al3+ is about 4.72 times that of SYNO:0.003Mn4+. The thermal stability of the sample was analyzed in detail and the internal quantum efficiency (IQE) values were measured and calculated. All the results elucidate that the as-prepared phosphors in this paper exhibit the potential of practical application in plant cultivation field." @default.
- W2980688053 created "2019-10-25" @default.
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- W2980688053 date "2020-02-01" @default.
- W2980688053 modified "2023-10-16" @default.
- W2980688053 title "Effects of Al3+-substitution on photoluminescence properties of Sr2YNbO6:Mn4+ far-red phosphor for plant cultivation" @default.
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- W2980688053 doi "https://doi.org/10.1016/j.jlumin.2019.116828" @default.
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