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- W2048114345 abstract "SrTiO3:Pr3+,Al3+ red-light-emitting phosphor particles were directly prepared by flame spray pyrolysis without any post-heat treatments. The morphology, crystallinity and photoluminescence (PL) of the as-prepared SrTiO3:Pr3+,Al3+ particles were systematically investigated. The as-prepared particles showed good morphological characteristics and a high crystallinity. The geometric mean diameters of the particles ranged from 0.53 to 0.70 µm. The particles showed a bright red emission at 615 nm from 1D2–3H4 transition under 365 nm excitation. Optimization to the enhance PL was conducted by systematically controlling gas flow rates, and activator, additive and salt-flux concentrations. The highest PL intensity at 615 nm was obtained at Pr/Ti and Al/Ti molar ratios of 0.001 and 0.03, respectively, and a 40 mol % LiNO3 flux. The photoluminescence intensity of submicron-sized SrTiO3:Pr3+,Al3+ particles prepared under the optimal synthetic conditions was as high as 107% that of micron-sized particles prepared by a solid-state reaction." @default.
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- W2048114345 date "2006-02-08" @default.
- W2048114345 modified "2023-09-25" @default.
- W2048114345 title "Flame Spray Pyrolysis for Preparing Red-Light-Emitting, Submicron-Sized Luminescent Strontium Titanate Particles" @default.
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- W2048114345 doi "https://doi.org/10.1143/jjap.45.967" @default.
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