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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 16 — Aug. 2, 2010
  • pp: 16989–16994

Effect of oxygen vacancies on the red phosphorescence of Sr2SnO4:Sm3+ phosphor

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

Optics Express, Vol. 18, Issue 16, pp. 16989-16994 (2010)

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We reported the synthesis of a novel red long-afterglow material Sr2SnO4:Sm3+. Comparing with the air-sintered sample, a significant enhancement in both the fluorescence and phosphorescence for the vacuum-sintered sample was observed. This improvement could be attributed to the increase of oxygen vacancies which act as the sensitizer and the electron traps for the effective energy transfer from Sr2SnO4 host to Sm3+. The defects act as traps were investigated with thermoluminescence. For the presence of deep stable traps able to immobilize the energy permanently at room temperature, the Sr2SnO4:Sm3+ could be considered as a potential storage phosphor as well.

© 2010 OSA

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(250.5230) Optoelectronics : Photoluminescence

ToC Category:

Original Manuscript: May 25, 2010
Revised Manuscript: July 14, 2010
Manuscript Accepted: July 20, 2010
Published: July 26, 2010

Xuhui Xu, Yuhua Wang, Yu Gong, Wei Zeng, and Yanqin Li, "Effect of oxygen vacancies on the red phosphorescence of Sr2SnO4:Sm3+ phosphor," Opt. Express 18, 16989-16994 (2010)

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