%A LI Yuan;ZHAO Yong-liang*;LIU Yong-gang;WEI Xiao-yan;REN Yue
%T Study on Self-Propagating Synthesis of the Doped SrAl2O4 Rare Earth Long Afterglow Phosphors
%0 Journal Article
%D 2011
%J SPECTROSCOPY AND SPECTRAL ANALYSIS
%R 10.3964/j.issn.1000-0593(2011)06-1467-05
%P 1467-1471
%V 31
%N 06
%U {https://www.gpxygpfx.com/CN/abstract/article_4872.shtml}
%8 2011-06-01
%X Twenty one doped SrAl2O4 long after-glowed phosphors with 4 series were synthesized by self-propagating high-temperature synthesis method (SHS) with urea-nitrate solution which served as media at 600 ℃. They are SrAl2O4∶Eu2+0.012 5, RE3+0.012 5(RE3+=Ce3+, Pr3+, Nd3+, Tb3+, Dy3+), SrAl2O4∶Eu2+0.012 5, M0.012 5(M=Li+, Be2+, Cd2+, Mn2+, Cu2+, Ag+, Zn2+, Pb2+), SrAl2O4∶Eu2+0.012 5, Dy3+0.012 5, M0.012 5(M=Mn2+, Cu2+, Ag+, Zn2+), and SrAl2O4∶Eu2+0.012 5, Dy3+0.012 5,RE3+0.012 5(RE3+=Ce3+, Pr3+, Nd3+, Tb3+), of which luminescence and after-glowing features were tested. The morphology of all these samples presents a state of porosity and laxity. The samples show an intense emission peak at 514 nm and broad peaks of the excitation spectra at 290~360 nm, Tb3+ and Dy3+ had most effects on luminance and after-glowed time respectively. The SrAl2O4∶Eu2+0.012 5, Dy3+0.012 5 had good luminance and proper after-glowed time as well.