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Optics Express

Optics Express

  • Editor: C. Martijin de Sterke
  • Vol. 19, Iss. 7 — Mar. 28, 2011
  • pp: 6303–6311

The new red-emitting phosphor of oxyfluoride Ca2RF4PO4:Eu3+ (R=Gd, Y) for solid state lighting applications

Yanlin Huang, Yosuke Nakai, Taiju Tsuboi, and Hyo Jin Seo  »View Author Affiliations


Optics Express, Vol. 19, Issue 7, pp. 6303-6311 (2011)
http://dx.doi.org/10.1364/OE.19.006303


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Abstract

The novel red-emitting phosphors of Eu3+-activated Ca2RF4PO4:Eu3+ (R=Gd, Y) prepared by a solid-state reaction have been evaluated as a candidate for white solid state lighting. The detailed luminescence properties, e.g., the excitation spectra, the luminescence spectra and quantum efficiency under the excitation of near-UV, and decay lifetimes were reported. The phosphors can be efficiently excited by near UV light and exhibit a dominant emission peaked at 611 nm (5D07F2) with CIE coordinates of (x=0.661, y=0.333). The thermal stabilities were investigated from the luminescence intensities, color purity and the decay curves by increasing temperature. The luminescence parameters related to white LEDs applications were compared to some red phosphors and discussed in details. The red-emitting Ca2RF4PO4:Eu3+ (R=Gd, Y) may be potentially useful in the fabrication of white 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:
Materials

History
Original Manuscript: January 31, 2011
Revised Manuscript: March 5, 2011
Manuscript Accepted: March 6, 2011
Published: March 18, 2011

Citation
Yanlin Huang, Yosuke Nakai, Taiju Tsuboi, and Hyo Jin Seo, "The new red-emitting phosphor of oxyfluoride Ca2RF4PO4:Eu3+ (R=Gd, Y) for solid state lighting applications," Opt. Express 19, 6303-6311 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-7-6303


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