Abstract
Abstract In this study, green barium strontium silicate phosphor (BaSrSiO 4 :Eu 3+ , Eu 2+ ) was synthesized using a solid-statereaction method in air and reducing atmosphere. Investigation of the firing temperature indicates that a single phase of BaSrSiO 4 is formed when the firing temperature is higher than 1400 o C. The effect of firing temperature and doping concentration onluminescent properties are investigated. The light-emitting property was the best when the molar content of Eu 2 O 3 was 0.025mol. Also, the luminescent brightness of the BaSrSiO 4 fluorescent substance was the best when the particle size of the bariumwas 0.5 µ m. BaSrSiO 4 phosphors exhibit the typical green luminescent properties of Eu 3+ and Eu 2+ . The characteristics of thesynthesized BaSrSiO 4 :Eu 3+ , Eu 2+ phosphor were investigated using X-ray diffraction (XRD) and scanning electron microscopy.The maximum emission band of the BaSrSiO 4 :Eu 3+ , Eu 2+ was 520 nm.Key wordsphosphor, BaSrSiO 4 :Eu, solid state reaction.
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