VUV photoluminescence properties of KSrPO4:Dy3+ phosphor
来源期刊：Journal of Rare Earths2018年第8期
论文作者：Yali Chen Jingyan Fan Yajun Zhou Jing Gou Binxun Yu
文章页码：802 - 805
摘 要：White-light-emitting phosphors based on phosphate host matrix, KSrPO4 doped with Dy3+, were prepared by solid state reaction and their VUV luminescent properties were firstly investigated. The excitation band peaking at 125-153 nm corresponding to the absorption of PO43- group exhibits very strong absorption. The phosphors emit warm-white luminescence under vacuum ultraviolet excitation of 147 nm, which consists of three main emission peaks located at 475, 570 and 662 nm, respectively.According to the luminescence and color chromaticity of the optimal sample KSrPO4:1 mol%Dy3+,1.3 mol%Li+, it can be a potential candidate for mercury-free fluorescent lamps.
Yali Chen1,2，Jingyan Fan1,2，Yajun Zhou1,2，Jing Gou1,2，Binxun Yu1,3
1. Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Normal University2. Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University3. School of Chemistry and Chemical Engineering, Shaanxi Normal University
摘 要：White-light-emitting phosphors based on phosphate host matrix, KSrPO4 doped with Dy3+, were prepared by solid state reaction and their VUV luminescent properties were firstly investigated. The excitation band peaking at 125-153 nm corresponding to the absorption of PO43- group exhibits very strong absorption. The phosphors emit warm-white luminescence under vacuum ultraviolet excitation of 147 nm, which consists of three main emission peaks located at 475, 570 and 662 nm, respectively.According to the luminescence and color chromaticity of the optimal sample KSrPO4:1 mol%Dy3+,1.3 mol%Li+, it can be a potential candidate for mercury-free fluorescent lamps.
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