Synthesis and luminescence properties of novel Sr sub(3)Gd(PO sub(4)) sub(3):Dy super(3+) phosphor
Sr sub(3)(Gd sub(1-x)Dy sub(x))(PO sub(4)) sub(3) phosphors for white light-emitting diodes (w-LEDs) were prepared by the conventional solid-state reaction. X-ray diffraction (XRD) and photoluminescence spectra were utilized to characterize the structure and luminescence properties of the as-synthes...
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Published in | Journal of luminescence Vol. 158; pp. 301 - 305 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
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01.02.2015
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Abstract | Sr sub(3)(Gd sub(1-x)Dy sub(x))(PO sub(4)) sub(3) phosphors for white light-emitting diodes (w-LEDs) were prepared by the conventional solid-state reaction. X-ray diffraction (XRD) and photoluminescence spectra were utilized to characterize the structure and luminescence properties of the as-synthesized phosphors. Luminescence properties shows that the phosphor can be efficiently excited by the ultraviolet visible light in the region from 300 to 450 nm, and it exhibits blue (483 nm) and yellow (575 nm) emission corresponding to super(4)F sub(9/2) arrow right super(6)H sub(15/2) transition and super(4)F sub(9/2) arrow right super(6)H sub(13/2) transition, respectively. It has been found that concentration quenching occurs via dipole-dipole interaction according to Dexter's theory. The temperature dependence of photoluminescence properties is investigated from 25 to 250 degree C and the prepared Sr sub(3)Gd(PO sub(4)) sub(3):Dy super(3+) phosphors show good thermal quenching properties. |
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AbstractList | Sr sub(3)(Gd sub(1-x)Dy sub(x))(PO sub(4)) sub(3) phosphors for white light-emitting diodes (w-LEDs) were prepared by the conventional solid-state reaction. X-ray diffraction (XRD) and photoluminescence spectra were utilized to characterize the structure and luminescence properties of the as-synthesized phosphors. Luminescence properties shows that the phosphor can be efficiently excited by the ultraviolet visible light in the region from 300 to 450 nm, and it exhibits blue (483 nm) and yellow (575 nm) emission corresponding to super(4)F sub(9/2) arrow right super(6)H sub(15/2) transition and super(4)F sub(9/2) arrow right super(6)H sub(13/2) transition, respectively. It has been found that concentration quenching occurs via dipole-dipole interaction according to Dexter's theory. The temperature dependence of photoluminescence properties is investigated from 25 to 250 degree C and the prepared Sr sub(3)Gd(PO sub(4)) sub(3):Dy super(3+) phosphors show good thermal quenching properties. |
Author | Sun, Jiayue Cui, Dianpeng Di, Qiumei Zeng, Junhui Xu, Qiguang |
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Snippet | Sr sub(3)(Gd sub(1-x)Dy sub(x))(PO sub(4)) sub(3) phosphors for white light-emitting diodes (w-LEDs) were prepared by the conventional solid-state reaction.... |
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SubjectTerms | Diffraction Emission Luminescence Phosphors Photoluminescence Quenching Spectra X-ray diffraction |
Title | Synthesis and luminescence properties of novel Sr sub(3)Gd(PO sub(4)) sub(3):Dy super(3+) phosphor |
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