| 摘要 |
A phosphor material for producing white light under excitation of UV light and a method for making the same. The phosphor material is an alkaline-earth silicates compound with a chemical formula of (A2-x-yCexEuy)SiO4. A is one or more elements selected from the collection of Ba, Sr and Ca alkaline-earth metals. The range of x and y correspond to 0<x<1.0 and 0<y≦̸0.5 respectively. The phosphor material requires two rare earth elements: Ce and Eu. By blending the best co-doped composition of Ce and Eu ions, the single phosphor can directly produce white light under UV light excitation. In addition, the material in this invention is easy and fast to prepare in a large amount. Therefore, the phosphors can have a high industrial value.
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