Journal of Materials Science

, Volume 41, Issue 17, pp 5500–5503 | Cite as

Effects of RE3+ as a co-dopant in blue-emitting long-lasting phosphors, Sr3Al10SiO20:Eu2+

  • J. Y. Kuang
  • Y. L. LiuEmail author
  • J. X. Zhang


A series of novel long-lasting phosphors, Sr3Al10SiO20:Eu2+,RE3+, were prepared and studied. Under UV irradiation, broad-band emission long-lasting phosphorescence located at 466 nm was observed in all of these phosphors at room temperature. The effects of RE3+ as a co-dopant in Sr3Al10SiO20:Eu2+ were discussed in conjunction with the afterglow decay curves and thermoluminescence (TL) spectra. Quantitative TL spectra revealed that the introduction of RE3+ ions into Sr3Al10SiO20:Eu2+ host produces a highly dense trapping level at appropriate depth (335 K), which is considered to be responsible for the long-lasting phosphorescence at room temperature.


SrAl2O4 Trap Depth CaAl2O4 Eclipse Fluorescence Spectrophotometer Auxiliary Activator 



This present work was supported by the National Natural Science Foundations of China (Grant No. 50472077 and 20171018), the Natural Science Foundations of Guangdong Province (Grant No. 013201 and 36706).


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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.Department of ChemistryJinan UniversityGuangzhouPeople’s Republic of China

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