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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 24 — Nov. 22, 2010
  • pp: 24853–24858

Design, synthesis and characterization of an orange-yellow long persistent phosphor: Sr3Al2O5Cl2:Eu2+,Tm3+

Yanqin Li, Yuhua Wang, Yu Gong, Xuhui Xu, and Meijiao Zhou  »View Author Affiliations

Optics Express, Vol. 18, Issue 24, pp. 24853-24858 (2010)

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A novel orange-yellow emitting Sr3Al2O5Cl2:Eu2+, Tm3+ phosphor with bright and long persistent luminescence (LPL) has been newly developed. The incorporation of Tm3+ into the Sr3Al2O5Cl2:Eu2+ as an auxiliary activator dominates its long persistent luminescence and thermoluminescence characteristics to a large extent. The emissions in Sr3Al2O5Cl2:Eu2+, Tm3+ for both fluorescence and LPL are due to the 5d → 4f transitions of Eu2+. The orange-yellow long persistent luminescence with the chromaticity coordination of (0.53, 0.46) can persist for nearly 220 min at recognizable intensity level (≥ 0.32 mcd/m2). This investigation provides a new and efficient long persistent phosphor which enriches the color of the existing LPL.

© 2010 OSA

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

ToC Category:

Original Manuscript: September 20, 2010
Revised Manuscript: October 25, 2010
Manuscript Accepted: November 6, 2010
Published: November 12, 2010

Yanqin Li, Yuhua Wang, Yu Gong, Xuhui Xu, and Meijiao Zhou, "Design, synthesis and characterization of an orange-yellow long persistent phosphor: Sr3Al2O5Cl2:Eu2+,Tm3+," Opt. Express 18, 24853-24858 (2010)

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