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Synthesis and luminescence properties of Eu3+-doped a novel double perovskite Sr2YTaO6 phosphor

A novel Sr 2 Y 1− x TaO 6 : x Eu 3+ ( x  = 0.04–0.20) red-emitting phosphor was synthesized by using the conventional solid-state reaction method. The crystal structure, photoluminescence properties, thermal stability and decay lifetimes were investigated in detail. Upon near UV light excitation, th...

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Published in:Journal of materials science. Materials in electronics 2019-02, Vol.30 (3), p.2864-2871
Main Authors: Wei, Chao, Xu, Denghui, Li, Jinling, Geng, Aicong, Li, Xiong, Sun, Jiayue
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cited_by cdi_FETCH-LOGICAL-c312t-f337128a2b058f0909a33f9c7ac84c5b0bc2fa460ec1bf5fc59478a9d2fdcb9c3
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description A novel Sr 2 Y 1− x TaO 6 : x Eu 3+ ( x  = 0.04–0.20) red-emitting phosphor was synthesized by using the conventional solid-state reaction method. The crystal structure, photoluminescence properties, thermal stability and decay lifetimes were investigated in detail. Upon near UV light excitation, this sample exhibited a strong red emission peak centered at 612 nm due to 5 D 0  →  7 F 2 , which indicated that Eu 3+ occupies low symmetry sites within the Sr 2 YTaO 6 host lattice. The optimized doping concentration of Eu 3+ ion is about 12 mol%. The excellent thermal stability of Sr 2 YTaO 6 :Eu 3+ phosphor was tested according to the temperature dependent emission spectra. In addition, the Sr 2 Y 1− x Eu x TaO 6 phosphors exhibited good color coordinate (0.6076, 0.3879) and high color purity about 84.55%. All results indicated that the Sr 2 Y 1− x TaO 6 : x Eu 3+ phosphors can serve as an efficient red phosphor in the white light emitting diodes.
doi_str_mv 10.1007/s10854-018-0563-2
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The crystal structure, photoluminescence properties, thermal stability and decay lifetimes were investigated in detail. Upon near UV light excitation, this sample exhibited a strong red emission peak centered at 612 nm due to 5 D 0  →  7 F 2 , which indicated that Eu 3+ occupies low symmetry sites within the Sr 2 YTaO 6 host lattice. The optimized doping concentration of Eu 3+ ion is about 12 mol%. The excellent thermal stability of Sr 2 YTaO 6 :Eu 3+ phosphor was tested according to the temperature dependent emission spectra. In addition, the Sr 2 Y 1− x Eu x TaO 6 phosphors exhibited good color coordinate (0.6076, 0.3879) and high color purity about 84.55%. All results indicated that the Sr 2 Y 1− x TaO 6 : x Eu 3+ phosphors can serve as an efficient red phosphor in the white light emitting diodes.</description><identifier>ISSN: 0957-4522</identifier><identifier>EISSN: 1573-482X</identifier><identifier>DOI: 10.1007/s10854-018-0563-2</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Characterization and Evaluation of Materials ; Chemical synthesis ; Chemistry and Materials Science ; Color ; Crystal structure ; Efficiency ; Emission analysis ; Emission spectra ; Europium ; Luminescence ; Materials Science ; Morphology ; Optical and Electronic Materials ; Optical properties ; Organic light emitting diodes ; Perovskites ; Phosphors ; Photoluminescence ; Radiation ; Spectrum analysis ; Temperature dependence ; Thermal stability ; Ultraviolet radiation ; White light</subject><ispartof>Journal of materials science. 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subjects Characterization and Evaluation of Materials
Chemical synthesis
Chemistry and Materials Science
Color
Crystal structure
Efficiency
Emission analysis
Emission spectra
Europium
Luminescence
Materials Science
Morphology
Optical and Electronic Materials
Optical properties
Organic light emitting diodes
Perovskites
Phosphors
Photoluminescence
Radiation
Spectrum analysis
Temperature dependence
Thermal stability
Ultraviolet radiation
White light
title Synthesis and luminescence properties of Eu3+-doped a novel double perovskite Sr2YTaO6 phosphor
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