摘要
修改的 A 固态线路被尝试准备 Y0.95 Eu0.05PO4 PDP 黄磷，包含 milling YCl3 的粉状的混合物， EuCl3，并且(NH4 ) 2HPO4 并且锻烧导出工厂的先锋。导出工厂的先锋的热分解行为被 thermogravimetric 分析(TGA ) 调查。准备黄磷粉末的阶段作文，形态学，和光性质被 X 光检查衍射(XRD ) 描绘，扫描电子显微镜(SEM ) ，和真空紫外(VUV ) 排放系列分别地。结果显示 Y0.95Eu0.05PO4 黄磷粉末在 900
A modified solid-state route was attempted to prepare Y0.95 Eu0.05PO4 PDP phosphor, involving milling a powdered mixture of YCl3, EuCl3, and （NH4）2HPO4 and calcining the milling-derived precursor. The thermal decomposition behavior of the milling-derived precursor was investigated by thermogravimetric analysis （TGA）. Phase compositions, morphologies, and luminescence properties of the prepared phosphor powder were characterized by X-ray diffraction （XRD）, scanning electron microscope （SEM）, and vacuum ultraviolet （VUV） emission spectra, respectively. The results indicated that the Y0.95Eu0.05PO4 phosphor powder obtained at a calcination temperature of 900℃ was xenotime-structured. The phosphor powder particles were uniform and spherical-shaped with a primary particle size of-200 um. In comparison with that derived by the conventional solid-state route, the phosphor powder prepared by the modified solid-state route exhibited a higher color purity, presenting a predominant emission peak at 619 nm under 147 um VUV excitation.
基金
the Natural Science Foundation of Anhui Province, China (No. 2006KJ033B)
