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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 2, Iss. 1 — Jan. 1, 2012
  • pp: 92–102

Structure and photoluminescence properties of KSr4(BO3)3:Eu3+ red-emitting phosphor

Yi Zhang, Li Wu, Minyuan Ji, Biao Wang, Yongfa Kong, and Jingjun Xu  »View Author Affiliations

Optical Materials Express, Vol. 2, Issue 1, pp. 92-102 (2012)

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We have synthesized a Eu3+-activated KSr4(BO3)3 red phosphor by solid state reactions. Rietveld refinement on X-ray diffraction data indicates that Eu3+ ions are inclined to occupy Sr(2) (8c) site in the structure of KSr4(BO3)3. The composition-optimized KSr4(BO3)3:Eu3+ exhibits a dominant emission peak at 612 nm (5D0-7F2) with CIE coordinates of (0.64, 0.35) under the excitation at 394 nm. By codoping M+ ions (M = Li, Na, and K) in KSr4(BO3)3:Eu3+ to compensate the charge unbalance, the intensities of emission spectra at 612 nm can be increased greatly, but the CIE coordinates will not be changed. The red-emitting KSr4(BO3)3:Eu3+ phosphor may be potential candidate in the fabrication of white light-emitting diodes (LEDs).

© 2011 OSA

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(250.5230) Optoelectronics : Photoluminescence
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Fluorescent and Luminescent Materials

Original Manuscript: November 16, 2011
Revised Manuscript: December 7, 2011
Manuscript Accepted: December 8, 2011
Published: December 9, 2011

Yi Zhang, Li Wu, Minyuan Ji, Biao Wang, Yongfa Kong, and Jingjun Xu, "Structure and photoluminescence properties of KSr4(BO3)3:Eu3+ red-emitting phosphor," Opt. Mater. Express 2, 92-102 (2012)

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