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- W2243670573 abstract "(Ba 1-(x+y) Sr x Eu y ) 2 Si 6 O 12 N 2 oxynitride phosphors were successfully synthesized by the solid-state reaction method at 1200°C under a H 2 (5%) + N 2 (95%) atmosphere. The Sr 2+ content (x) was varied in the range 0-0.6 and the Eu 2+ content varied in the range 0.05-0.25, with the Si/(Ba+Sr+Eu) ratio fixed at 3. Results showed that the emission characteristics of (Ba 1-(x+y) Sr x Eu y ) 2 Si 6 O 12 N 2 phosphors under UV or blue-light excitation was strongly dependent on the chemical composition. The phosphor (Ba 0.95 Eu 0.05 ) Si 6 O 12 N 2 showed an intense green emission peak at 520 nm, whilst the phosphor (Ba 0.45 Sr 0.5 Eu 0.05 )Si 6 O 12 N 2 had a weaker emission maximum at 548 nm. Ba 2+ substitution with Sr 2+ decreased the lattice volume of the (Ba 1-(x+y) Sr x Eu y ) 2 Si 6 O 12 N 2 phosphors and was responsible for the red-shift in the emission peak. Optimization of the Eu 2+ concentration at a fixed Sr 2+ content of 0.2 identified the phosphor (Ba 0.65 Sr 0.2 Eu 0.15 ) 2 Si 6 O 12 N 2 as a potential alternative to YAG:Ce yellow phosphors for white LED applications." @default.
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- W2243670573 date "2015-11-01" @default.
- W2243670573 modified "2023-09-27" @default.
- W2243670573 title "Photoluminescence Properties of (Ba<sub>1-(x+y)</sub>Sr<sub>x</sub>Eu<sub>y</sub>)<sub>2</sub>Si<sub>6</sub>O<sub>12</sub>N<sub>2</sub> Phosphors for White LED Applications" @default.
- W2243670573 doi "https://doi.org/10.4028/www.scientific.net/jnanor.36.1" @default.
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