Spectroscopy and Spectral Analysis, Volume. 31, Issue 6, 1467(2011)
Study on Self-Propagating Synthesis of the Doped SrAl2O4 Rare Earth Long Afterglow Phosphors
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.
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LI Yuan, ZHAO Yong-liang, LIU Yong-gang, WEI Xiao-yan, REN Yue. Study on Self-Propagating Synthesis of the Doped SrAl2O4 Rare Earth Long Afterglow Phosphors[J]. Spectroscopy and Spectral Analysis, 2011, 31(6): 1467
Received: Apr. 12, 2010
Accepted: --
Published Online: Jan. 5, 2012
The Author Email: Yuan LI (liyuan12335@126.com)