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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 9 — Sep. 1, 2006
  • pp: 1852–1858

Preparation and optical properties of trivalent europium-doped bulk and nanocrystalline Sr Y 2 O 4

Zuoling Fu, Shihong Zhou, and Siyuan Zhang  »View Author Affiliations


JOSA B, Vol. 23, Issue 9, pp. 1852-1858 (2006)
http://dx.doi.org/10.1364/JOSAB.23.001852


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Abstract

The nanocrystalline Sr Y 2 O 4 : Eu 3 + was prepared by a poly(vinyl alcohol) ( PVA ) + glycine -assist combustion method. The results of x-ray diffraction indicate that the resulting Sr Y 2 O 4 : Eu 3 + nanocrystals have much broader and less intense peaks compared with those in bulk material. The charge-transfer bands in Sr Y 2 O 4 : Eu 3 + nanocrystals shift to higher energies in contrast to those in bulk material. The spectral results revealed that in bulk Sr Y 2 O 4 : Eu 3 + , the Eu 3 + ions occupied three nonequivalent sites, with one at the Sr site: one at the Y(1) site and another at the Y(2) site, while in nanocrystalline Sr Y 2 O 4 : Eu 3 + , the Eu 3 + ions occupied only two nonequivalent sites; one at the Y(1) site and the other at the Y(2) site. Finally, by theoretical calculation and analysis, the analyzed results are in reasonable agreement with our experimental results.

© 2006 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Materials

History
Original Manuscript: December 1, 2005
Revised Manuscript: March 30, 2006
Manuscript Accepted: March 31, 2006

Citation
Zuoling Fu, Shihong Zhou, and Siyuan Zhang, "Preparation and optical properties of trivalent europium-doped bulk and nanocrystalline SrY2O4," J. Opt. Soc. Am. B 23, 1852-1858 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-9-1852


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