Bismuth ion sensitized rare earth germanate luminescence materials and preparation methods thereof
AssigneeOcean's King Lighting Science & Technology Co., Ltd.
InventorsMingjie Zhou, Wenbo Ma, Zhaopu Shi
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Abstract
Bismuth ion sensitized rare earth germanate luminescence materials and preparation methods are disclosed. The luminescence materials are the compounds of the following general formula (Y1-x-y-zAxBiyLnz)2GeO5. The preparation methods comprise: using oxides, carbonates, oxalates, acetates, nitrates or halides of Y, A, Bi, Ln and Ge as raw materials, wherein A is one of Gd, Lu, Sc and La, and Ln is at least one of Tm, Ho, Sm, Tb, Eu and Dy, homogeneously grinding the raw materials, sintering at 1300-1500° C. for 6-24 h, and then cooling them to room temperature to obtain the bismuth ion sensitized rare earth germanate luminescence materials.
Claims14
Bismuth ion sensitized rare earth germanate luminescence materials, wherein are the compounds of the following general formula (Y1-x-y-zAxBiyLnz)2GeO5, wherein, the values of x, y and z are taken 0≦x<1, 0<y≦0.02, 0<z≦0.3, and x+y+z≦1, respectively, while A is one of Gd, Lu, Sc and La, and Ln is at least one of Tm, Ho, Sm, Tb, Eu and Dy.
The preparation methods of the bismuth ion sensitized rare earth germanate luminescence materials, wherein, comprise:
- using oxides, carbonates, oxalates, acetates, nitrates or halides of Y, A, Bi, Ln and Ge as raw materials, wherein A is one of Gd, Lu, Sc and La, and Ln is at least one of Tm, Ho, Sm, Tb, Eu and Dy, homogeneously grinding the raw materials, sintering at 1300-1500° C. for 6-24 h, and then cooling them to room temperature to obtain the bismuth ion sensitized rare earth germanate luminescence materials.
Dependencies are inferred from the claim text.