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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 5 — Feb. 28, 2011
  • pp: 4310–4315

Fluorescence and phosphorescence properties of new long-lasting phosphor Ba4(Si3O8)2:Eu2+, Dy3+

Yu Gong, Yuhua Wang, Yanqin Li, Xuhui Xu, and Wei Zeng  »View Author Affiliations

Optics Express, Vol. 19, Issue 5, pp. 4310-4315 (2011)

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A novel long-lasting phosphorescence (LLP) material Ba4(Si3O8)2:Eu2+, Dy3+ with high chemical stability was achieved successfully. Two emission centers (Eu (I) and Eu (II)) were found in Ba4(Si3O8)2 due to the substitution of Eu2+ in different Ba2+ sites. Both Eu (I) and Eu (II) had contribution to the afterglow process, however, the decay rate of Eu (I) was higher than that of Eu (II). Ba3.982(Si3O8)2: 0.008Eu2+, 0.01Dy3+ exhibited a long-lasting phosphorescence whose duration was more than 24 h. Through the analysis of the thermoluminescence (TL) curves, we found that Eu2+ single doped Ba4(Si3O8)2 has a possibility to be a kind of storage phosphor. This work provides a new and efficient candidate for LLP and storage materials.

© 2011 OSA

OCIS Codes
(160.4670) Materials : Optical materials
(160.4760) Materials : Optical properties
(250.5230) Optoelectronics : Photoluminescence

ToC Category:

Original Manuscript: December 7, 2010
Revised Manuscript: February 10, 2011
Manuscript Accepted: February 10, 2011
Published: February 18, 2011

Yu Gong, Yuhua Wang, Yanqin Li, Xuhui Xu, and Wei Zeng, "Fluorescence and phosphorescence properties of new long-lasting phosphor Ba4(Si3O8)2:Eu2+, Dy3+," Opt. Express 19, 4310-4315 (2011)

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