VUV photoluminescence properties of KSrPO4：Dy^3＋ phosphor  

作　　者：Yali Chen Jingyan Fan Yajun Zhou Jing Gou Binxun Yu 

机构地区：[1]Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Normal University. Xi'an 710119, China [2]Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Materials Science andEngineering, Shaanxi Normal University. Xi'an 710119, China [3]School of Chemistry and Chemical Engineering. Shaanxi Normal University, Xi'an 710119, China

出　　处：《Journal of Rare Earths》2018年第8期802-805,共4页稀土学报（英文版）

基　　金：Project supported by the National Key Research and Development Program of China(2016YFA0202403);National Natural Science Foundation of China(21603140,21641001);the Fundamental Research Funds for the Central Universities(GK201803036,GK201803029)

摘　　要：White-light-emitting phosphors based on phosphate host matrix, KSrPO4 doped with Dy^3＋, 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 PO4^3- 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%Dy^3＋,1.3 mol%Li^＋, it can be a potential candidate for mercury-free fluorescent lamps.White-light-emitting phosphors based on phosphate host matrix, KSrPO4 doped with Dy^3＋, 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 PO4^3- 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%Dy^3＋,1.3 mol%Li^＋, it can be a potential candidate for mercury-free fluorescent lamps.

关 键 词：PHOSPHOR PHOTOLUMINESCENCE VUV Rare earths 

分 类 号：TN104.3[电子电信—物理电子学]