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发明公开
CN102020986A 一种硅酸盐绿色荧光粉及其制备方法 无效 - 撤回

一种硅酸盐绿色荧光粉及其制备方法
摘要：
本发明提供了一种硅酸盐绿色荧光粉及其制备方法，该荧光粉的化学组成为:M1xZn2-2x-yM2xSiO4:Mny，其中M1为Li，Na，K中的一种或几种组合；M2为Al，Ga，Y，Sc，Gd，La，Lu中的一种或几种组合，0.001≤x≤0.5，0.005≤y≤0.2。按上述化学组成称量原料和助熔剂，并充分混合均匀，然后在1100℃~1400℃、并在还原气氛下焙烧2~6小时即得到该荧光粉。所述荧光粉可被147nm~365nm范围的真空紫外或紫外光的激发下发射波长为510nm~540nm范围的绿色荧光，其余辉时间短，发光亮度高，稳定性好，可作为等离子显示器用绿色荧光粉。
摘要（英）：

The invention provides a silicate green fluorescent powder and a preparation method thereof. The fluorescent powder comprises the following chemical components: M<1>xZn2-2x-yM<2>xSiO4: Mny, wherein M<1> represents one or more of Li, Na and K, M<2> represents one or more of Al, Ga, Y, Sc, Gd, La and Lu, the x is not less than 0.001 and not more than 0.5, and the y is not less than 0.005 and not more than 0.2. The preparation method of the fluorescent powder comprises the following steps of: weighting raw materials and a fluxing agent according to the chemical components, completely and uniformly mixing the raw materials, and roasting the mixture for 2-6 hours at 1,100-1,400 DEG C under the reducing atmosphere to obtain the fluorescent powder. The fluorescent powder can be excited by vacuum ultraviolet or ultraviolet light within 147-365nm to emit green fluorescence with the wavelength of 510-540nm, the afterglow duration of the fluorescent powder is short, the luminescence brightness is high, and the stability is good; and in addition, the invention can be used as green fluorescent powder for plasma displays.

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