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lapo4:eu3+纳米荧光粉的发光强度影响因素

Keywords: 无机非金属材料,稀土离子,磷酸盐,纳米材料,荧光

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Abstract:

?通过改变水热反应中的原料---磷源,制备了不同尺寸大小的lapo4:eu3+纳米荧光粉。xrd分析表明,所有的水热反应产物均可归属为单斜晶系。水热产物再经900℃的热处理后,apo4:eu3+荧光粉晶粒尺寸变大,同时结晶度提高。通过对比不同尺寸的lapo4:eu3+荧光粉在紫外和真空紫外激发两种模式下的发光强度,为晶粒大小在紫外和真空紫外激发两种不同的激发模式下对荧光粉发光强度的影响完全不同。

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