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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 23 — Dec. 1, 2008
  • pp: 2865–2867

Eu 2 + and Mn 2 + codoped Ba 2 Mg ( B O 3 ) 2 —new red phosphor for white LEDs

Shuanglong Yuan, Yunxia Yang, Xianghua Zhang, Franck Tessier, François Cheviré, Jean-Luc Adam, Bernard Moine, and Guorong Chen  »View Author Affiliations


Optics Letters, Vol. 33, Issue 23, pp. 2865-2867 (2008)
http://dx.doi.org/10.1364/OL.33.002865


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Abstract

A new red phosphor, Ba 2 Mg ( B O 3 ) 2 : Eu , Mn , was synthesized by the solid-state reaction method and its photoluminescence properties were investigated by excitation and emission spectra and decay curves. Its excitation band is extending from 250 450 nm , which is adaptable to the emission band of near-ultraviolet LED chips ( 350 420 nm ) . Upon the excitation of 365 nm light, the phosphor exhibits strong red emission centered at 615 nm . The relationship between Eu 2 + and Mn 2 + dopants was studied from the viewpoint of a crystal structure and by photoluminescence spectra and decay curves. The results show that the characteristic Eu 2 + emission predominate in the emission band and Mn 2 + promote the redistribution of Eu 2 + at the cation sites of the host crystal.

© 2008 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.5690) Materials : Rare-earth-doped materials
(250.5230) Optoelectronics : Photoluminescence
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Spectroscopy

History
Original Manuscript: July 23, 2008
Revised Manuscript: October 17, 2008
Manuscript Accepted: October 22, 2008
Published: November 25, 2008

Citation
Shuanglong Yuan, Yunxia Yang, Xianghua Zhang, Franck Tessier, François Cheviré, Jean-Luc Adam, Bernard Moine, and Guorong Chen, "Eu2+ and Mn2+ codoped Ba2Mg(BO3)2—new red phosphor for white LEDs," Opt. Lett. 33, 2865-2867 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-23-2865


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