Mg2Sr2-XTiO4: Eu3+， Gd3+红色荧光粉的制备及发光性能

IF 1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-03-01 DOI:10.15251/djnb.2023.181.253

You-Dong Li, Hengjian Huang, Limin Dong, Dan Li, Wenhua Shi, J. Yin

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引用次数: 0

摘要

钛酸盐基发光材料对蓝光和近紫外光具有很强的吸收能力。本文采用溶胶-凝胶法制备了掺杂稀土离子的钛酸镁Mg2Sr2-xTiO4: Eu3+， Gd3+的高效红色荧光粉。研究了激活剂稀土离子Eu3+和敏化剂Gd3+的最佳掺杂浓度。此外，一定量的Sr2+和Na+的掺杂有效地改善了硅酸盐发光材料的发光性能。发光光谱表明，该发光材料具有红色单色性，最强红光发射为614nm，可用于WLED。

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Preparation and luminescence properties of Mg2Sr2-XTiO4: Eu3+, Gd3+ red phosphors

Titanate-based luminescent materials have a strong absorption capacity for blue and near-ultraviolet light. Here, a sol-gel method is used to prepare a high-efficiency red phosphor of magnesium titanate Mg2Sr2-xTiO4: Eu3+, Gd3+ doped with rare-earth ions. The optimal doping concentrations of the activator rare earth ion Eu3+ and the sensitizer Gd3+ were investigated. Furthermore, the doping of a certain amount of Sr2+ and Na+ effectively improves the luminescence properties of silicate luminescent materials. The luminescence spectrum shows that the luminescent material has red monochromaticity and the strongest red-light emission is 614nm, which can be used for WLED.

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