The luminescence properties of Sr_3Gd(BO_3)_3:Tb^(3+) phosphors under vacuum ultraviolet excitation  

作　　者：ZHAO WenYu GAO SongWei AN ShengLi FAN Bin LI SongBo 

机构地区：[1]School of Chemistry and Chemical Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China [2]School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing Beijing 100083,China [3]School of Material and Metallurgical Engineering,lnner Mongolia University of Science and Technology,Baotou 014010,China

出　　处：《Chinese Science Bulletin》2012年第34期4513-4516,共4页

基　　金：supported by the "111 Talents Project" Foundation of Inner Mongolia;the Innovation Fund of Inner Mongolia University of Science and Technology (2010NC026)

摘　　要：Tb3+-activated Sr3Gd(BO3)3 green phosphors were prepared by conventional solid-state reaction. The vacuum ultraviolet (VUV) excitation, photoluminescence (PL) and decay properties of the phosphors in the visible range were investigated. The excitation spectrum showed a strong broad band from 160 to 200 nm with a maximum at 183 nm which was adjacent to the VUV excitation light source of 172 nm. Under excitation at 172 nm, the optimum co-doping concentration of Tb3+ was 10 mol%, and the emission intensity of Sr3Gd0.9(BO3)3:0.1Tb3+ was comparable to that of commercial Zn2SiO4:Mn2+. The strongest emission peak of Sr3Gd0.9(BO3)3:0.1Tb3+ was at 543 nm with chromaticity coordinates of (0.2626, 0.4922) and a lifetime of 2.32 ms. The optical properties of the green phosphor Sr3Gd(BO3)3:Tb3+ make it suitable for use in Hg-free fluorescent lamps and plasma display panels.Tb3＋-activated Sr3Gd（BO3）3 green phosphors were prepared by conventional solid-state reaction. The vacuum ultraviolet （VUV） excitation, photoluminescence （PL） and decay properties of the phosphors in the visible range were investigated. The excitation spectrum showed a strong broad band from 160 to 200 nm with a maximum at 183 nm which was adjacent to the VUV excitation light source of 172 nm, Under excitation at 172 nm, the optimum co-doping concentration of Tb3＋ was 10 mol%, and the emission intensity of Sr3Gd0.9（BO3）3：0.1Tb3＋ was comparable to that of commercial Zn2SiO4：Mn2＋. The strongest emission peak of Sr3Gd0.9（BO3）3：0.1Tb3~ was at 543 nm with chromaticity coordinates of （0.2626, 0.4922） and a lifetime of 2.32 ms. The optical properties of the green phosphor Sr3Gd（BO3）3： Tb3~ make it suitable for use in Hg-free fluorescent lamps and plasma display panels.

关 键 词：真空紫外线 绿色荧光粉 激发光源 发光性能 绿色荧光体 发射强度 无汞荧光灯 固相反应 

分 类 号：TN104.3[电子电信—物理电子学]