The spectroscopic properties of Dy3 t and Eu3 t co-doped Y3Al5O12 (YAG) phosphors for white LED

Tunable full color emissive Y2.94 ? xAl5O12:0.06Dy3 t , xEu3 t (YAG:0.06Dy, xEu) phosphors with emission peaks at 483 nm (blue), 582 nm (yellow) and 610 nm (red) were synthesized by a sol–gel method. The as-synthesized phosphors were characterized by X-ray powder diffraction (XRD), transmission elec...

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Veröffentlicht in:自然科学进展(英文版) 2015 (3), p.209-214
Hauptverfasser: Xuejiao Niu, Jiayue Xu, Yan Zhang
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description Tunable full color emissive Y2.94 ? xAl5O12:0.06Dy3 t , xEu3 t (YAG:0.06Dy, xEu) phosphors with emission peaks at 483 nm (blue), 582 nm (yellow) and 610 nm (red) were synthesized by a sol–gel method. The as-synthesized phosphors were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), photoluminescence decay lifetimes, photoluminescence excitation and emission spectra. The results showed that photoluminescence intensity varied with excitation wavelength and the doping concentration of Eu3 t . The co-doping with Eu3 t compensated the red emission component of the YAG:Dy3 t phosphor. The chromaticity coordinate of YAG:0.06Dy, 0.09Eu phosphor (0.3263, 0.3334) was very close to that of the ideal white light (0.3333, 0.3333). Thus, the YAG:0.06Dy, 0.09Eu phosphor can find potential application in simulating the sunlight artificially through fabricating white light emitters.
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The as-synthesized phosphors were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), photoluminescence decay lifetimes, photoluminescence excitation and emission spectra. The results showed that photoluminescence intensity varied with excitation wavelength and the doping concentration of Eu3 t . The co-doping with Eu3 t compensated the red emission component of the YAG:Dy3 t phosphor. The chromaticity coordinate of YAG:0.06Dy, 0.09Eu phosphor (0.3263, 0.3334) was very close to that of the ideal white light (0.3333, 0.3333). Thus, the YAG:0.06Dy, 0.09Eu phosphor can find potential application in simulating the sunlight artificially through fabricating white light emitters.</description><identifier>ISSN: 1002-0071</identifier><language>eng</language><publisher>Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China</publisher><ispartof>自然科学进展(英文版), 2015 (3), p.209-214</ispartof><rights>Copyright © Wanfang Data Co. Ltd. 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The as-synthesized phosphors were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), photoluminescence decay lifetimes, photoluminescence excitation and emission spectra. The results showed that photoluminescence intensity varied with excitation wavelength and the doping concentration of Eu3 t . The co-doping with Eu3 t compensated the red emission component of the YAG:Dy3 t phosphor. The chromaticity coordinate of YAG:0.06Dy, 0.09Eu phosphor (0.3263, 0.3334) was very close to that of the ideal white light (0.3333, 0.3333). 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The as-synthesized phosphors were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), photoluminescence decay lifetimes, photoluminescence excitation and emission spectra. The results showed that photoluminescence intensity varied with excitation wavelength and the doping concentration of Eu3 t . The co-doping with Eu3 t compensated the red emission component of the YAG:Dy3 t phosphor. The chromaticity coordinate of YAG:0.06Dy, 0.09Eu phosphor (0.3263, 0.3334) was very close to that of the ideal white light (0.3333, 0.3333). Thus, the YAG:0.06Dy, 0.09Eu phosphor can find potential application in simulating the sunlight artificially through fabricating white light emitters.</abstract><pub>Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China</pub></addata></record>
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title The spectroscopic properties of Dy3 t and Eu3 t co-doped Y3Al5O12 (YAG) phosphors for white LED
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