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Optical Engineering

Synthesis and luminescence properties of Eu3+-doped Ba3Gd(PO4)3 phosphors for light-emitting diodes
Author(s): Qiumei Di; Qiguang Xu; Liu Han; Jiayue Sun
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Paper Abstract

Reddish-orange emitting Eu3+-activated Ba3Gd(PO4)3 phosphors have been successfully synthesized by a conventional solid-state reaction. X-ray powder diffraction confirmed the phase formation. The photoluminescence excitation and emission spectra were investigated. The band gap of Ba3Gd(PO4)3 was estimated to be about 3.68 eV from the diffuse reflection spectrum. The temperature-dependent luminescence of Ba3Gd(PO4)3:Eu3+ was discussed, and the activation energy for thermal quenching was calculated as 1.74 eV. The fluorescence decay curve and the commission internationale de L’Eclairage value of Ba3Gd(PO4)3:Eu3+ phosphors were also investigated in detail. The phosphor presented high color purity. Ba3Gd(PO4)3:Eu3+ might be a promising reddish-orange emitting phosphor used in white light-emitting diodes.35104

Paper Details

Date Published: 20 March 2015
PDF: 5 pages
Opt. Eng. 54(3) 035104 doi: 10.1117/1.OE.54.3.035104
Published in: Optical Engineering Volume 54, Issue 3
Show Author Affiliations
Qiumei Di, Beijing Technology and Business Univ. (China)
Qiguang Xu, Beijing Technology and Business Univ. (China)
Liu Han, Beijing Technology and Business Univ. (China)
Jiayue Sun, Beijing Technology and Business Univ. (China)

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