Borate luminous material and preparation method thereof
AssigneeOcean's King Lighting Science & Technology Co., Ltd.
InventorsMingjie Zhou, Chaopu Shi, Rong Wang, Wenbo Ma
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Abstract
Borate luminous material is provided, wherein, comprises the compound of following structural formula: M2(Re1−xLnx)2B2O7, wherein x is in a range of 0<x≦0.5, M is alkali metal element, Ln is at least one of Tm, Tb, Eu, Sm, Pr, Dy, Ce and Bi, Re is selected from one or more element of Y, Gd, Sc, Lu and La. The preparation method of borate luminous material also is provided. The borate luminous material has the advantages of good stability, high luminescence efficiency and high color purity.
Claims10
Borate luminous material, wherein, comprises the compound of following structural formula:
- M2(Re1−xLnx)2B2O7, wherein x is in a range of 0<x≦0.5, M is alkali metal element, Ln is at least one of Tm, Tb, Eu, Sm, Pr, Dy, Ce and Bi, Re is selected from one or more element of Y, Gd, Sc, Lu and La.
Preparation method of borate luminous material, wherein, comprising the steps of:
- using the compound used as the source of alkali metal element M+, the compound used as the source of Re3+, the compound used as the source of Ln ion, and boric acid or boron oxide as raw materials, wherein, all the raw materials are added at the molar ratio of the elements in the structure formula M2(Re1−xLnx)2B2O7, wherein, 0<x≦0.5, M is alkali metal element, Re is selected from one or more element of Y, Gd, Sc, Lu and La, Ln is at least one of Tm, Tb, Eu, Sm, Pr, Dy, Ce and Bi;
- grinding and mixing all said raw materials homogeneously;
- calcining the mixed raw materials and cooling them to obtain the borate luminous material.
Dependencies are inferred from the claim text.