Surface treatment of SrAl2O4:Eu2+, Dy3+ phosphors by combustion method

被引：0
|
作者：
Yang Q. [1 ]
Liu Y.-L. [1 ]
Sha L. [1 ]
Yu C.-X. [1 ]
Lei B.-F. [1 ]
机构：
[1] Department of Chemistry and Nanochemistry Institute, Jinan University
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2011年 / 32卷 / 09期
关键词：
Combustion method; Long afterglow; SrAl[!sub]2[!/sub]O[!sub]4[!/sub]:Eu[!sup]2+[!/sup; Dy[!sup]3+[!/sup; Surface treatment;
D O I：
10.3788/fgxb20113209.0864
中图分类号：
学科分类号：
摘要：
Owing to its poor water resistance, the application of SrAl2O4:Eu2+, Dy3+ phosphors is limited seriously. In this paper, a rapid combustion method was introduced into the surface treatment of SrAl2O4:Eu2+, Dy3+ phosphors. X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, photoluminescence spectrophotometry and pH measurements were employed to characterize the treated and untreated phosphors. Experimental results showed that a compact layer was coated on the surface of SrAl2O4:Eu2+, Dy3+ phosphors, which effectively improved the water resistance of phosphors.
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页码：864 / 868
页数：4
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共 19 条
  • [1] Matsuzawa T., Aoki Y., Takeuchi N., Et al., A new long phosphorescent phosphor with high brightness SrAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup>, Dy<sup>3+</sup>, J. Electrochem. Soc., 143, 8, pp. 2670-2673, (1996)
  • [2] Hao H., Chen B., Lu M., Et al., Long-persistent luminescent properties of SrAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup>, Dy<sup>3+</sup> doped with Yb<sup>3+</sup> and Er<sup>3+</sup>, Chin. J. Lumin., 32, 4, pp. 319-324, (2011)
  • [3] Mishra S.B., Mishra A.K., Luyt A.S., Et al., Properties of green SrAl<sub>2</sub>O<sub>4</sub> phosphor in LDPE and PMMA polymers, J. Appl. Polym. Sci., 117, 5, pp. 2635-2640, (2010)
  • [4] Ji T., Jiang H., Thermal stability of red afterglow phosphor Y<sub>2</sub>O<sub>2</sub>S:Eu, Mg, Ti, Gd, Chin. J. Lumin., 32, 2, pp. 122-126, (2011)
  • [5] Xiao L., Xiao Q., Liu Y., Et al., A transparent surface-crystallized Eu<sup>2+</sup>, Dy<sup>3+</sup> co-doped strontium aluminate long-lasting phosphorescent glass-ceramic, J. Alloys Compd., 495, 1, pp. 72-75, (2010)
  • [6] Chen X., Hu Y., Wang Y., Et al., Valence-change of Eu and its effect on the luminescent properties of long afterglow phosphor SrAl<sub>2</sub>O<sub>4</sub>:Eu, Dy, Chin. J. Lumin., 30, 1, pp. 40-46, (2009)
  • [7] Liao F., Wang Y., Hu Y., Et al., Preparation and luminescence properties of Sr<sub>1-x</sub>Ba<sub>x</sub>Al<sub>2</sub>O<sub>4</sub>: Eu<sup>2+</sup>, Dy<sup>3+</sup>, Chin. J. Lumin., 30, 3, pp. 399-404, (2009)
  • [8] Wang R., Effects of excitation wavelength and the Eu<sup>2+</sup>-doped content on phosphorescence of Sr<sub>4</sub>Al<sub>14</sub>O<sub>25</sub>:Eu<sup>2+</sup>, Dy<sup>3+</sup>, Chin. J. Lumin., 35, 5, pp. 686-690, (2010)
  • [9] Guo C., Lin L., Su Q., Et al., Study on the stability of phosphor SrAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup>, Dy<sup>3+</sup> in water and method to improve its moisture resistance, Mater. Chem. Phys., 106, 2, pp. 268-272, (2007)
  • [10] Lv X., Zhong M., Shu W., Et al., Alumina encapsulated SrAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup>, Dy<sup>3+</sup> phosphors, Powder Technol., 177, 1, pp. 83-86, (2007)
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