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Y0.9-xGdxEu0. 1 BO3 phosphors were synthesized by spray drying (SD) method, and the results were compared with those by conventional solid state (SS) and citrate gel (CG) methods. The PL intensity of phosphors increases with the increase of x value in Y0.9-xGdxEu0.1BO3(prepared by SD) due to an energy migration process like Gd^3 - (Gd^3 )nEu^3 occurred in the material. Conlpared with the latter two methods, the phosphor particles prepared by spray drying method have a better morphology, such as homogeneous size (about 1 - 3μm) with spherical shape and smooth surface.Furthermore, the spray drying-derived phosphors have higher photoluminescence (PL) intensity than those by citrate gel method, but still a little lower than those by the solid state method. 相似文献
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