Abstract
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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