Paper Title:
Synthesis and Luminescent Properties of Violet-Ultraviolet Long Afterglow Phosphors
  Abstract

The M1.99MgSi2O7: Ce3+0.01 (M: Ba, Sr, Ca) phosphors were prepared by the solid-state reaction method. All the samples emit the violet-ultraviolet light with a broad emission band from about 330 nm to 500 nm. All the phosphors samples show a long afterglow. The strongest afterglow intensity and the longest decay duration of the afterglow come from the Ca1.99MgSi2O7: Ce3+0.01 sample. It is attributed to the suitable trap depth and the high trap concentration of this sample. The traps of these phosphors are induced by the lattice defects. A suitable model involving the cation vacancies and the oxygen vacancies, which act as the hole traps and the electron traps respectively, is proposed.

  Info
Periodical
Materials Science Forum (Volumes 663-665)
Edited by
Yuan Ming Huang
Pages
170-176
DOI
10.4028/www.scientific.net/MSF.663-665.170
Citation
H. Y. Wu, Y. H. Hu, Y. H. Wang, C. J. Fu, F. W. Kang, X. Li, "Synthesis and Luminescent Properties of Violet-Ultraviolet Long Afterglow Phosphors", Materials Science Forum, Vols. 663-665, pp. 170-176, 2011
Online since
November 2010
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