Hydrothermal Synthesis and Luminescent Properties of Co²⁺ Doped YPO_4:Eu³⁺ Phosphors AITranslate

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Chinese Library Classification Number:TB34[一般工业技术—材料科学与工程]

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Co2＋doped YPO4：Eu3＋phosphors were successfully synthesized with hydrothermal method.The crystal structure,element valence state and luminescent properties of the as-synthesized samples were investigated by XRD,XPS,FT-IR and FL.The results show that all the samples from hydrothermal synthesis are single-phase Co2＋doped YPO4：Eu3＋crystals with tetragonal xenotime structure,they can effectively emit characteristic orange-red luminescence of Eu3＋with UV light excitation,and the fluorescence lifetime is approximately 4.6ms.A small amount of Co2＋and Eu3＋codoping has less influence on phase composition and crystal structure of product matrix,but has a significant impact on its luminescent properties.The intensity of emission peak located at 595 nm of YPO4：2%Eu3＋,0.10 %Co2＋sample is about 21.1%higher than that of YPO4：2%Eu3＋sample.