Synthesis and characterization of SrAl2 O4∶Eu2 +,Dy3 + fluorescent powder
LI Zhi-jie
ZHANG Yu-feng
WU Xiao
Abstract：In order to improve the luminescence intensity and afterglow time of SrAl2 O4 ∶Eu2 +,Dy3 +fluorescent material,the SrAl2 O4 ∶Eu2 +,Dy3 + fluorescent powder was synthesized with high temperature solid state method. The chemical composition, structure, microscopic morphology and luminescent properties of products were analyzed with X ray diffractometer (XRD),scanning electron microscope (SEM)and fluorescence spectrometer.The results show that the optimum calcination temperature of SrAl2 O4∶Eu2 +,Dy3 +fluorescent powder is 1 500 ℃,and the optimum calcination time is 3 h.When the mass fraction of Eu2 O3 is 2%,the SrAl2 O4 ∶Eu2 + fluorescent powder has the maximum luminescence intensity.When the mass fraction of Eu2 O3 is 1.5%,the SrAl2 O4 ∶Eu2 + fluorescent powder has the best afterglow performance.When the mass fraction of Eu2 O3 is 2% and the mass fraction of Dy2 O3 is 4%,the SrAl2 O4∶Eu2 +,Dy3 + luorescent powder has the best luminescence intensity and afterglow performance.
Keywords：fluorescence materialluminescence intensityoptimum calcination temperaturehigh temperature solid state methodmicron powderemission spectrumafterglowsynthesis
Publication Date：2016-08-31
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 481-485 )