用共沉淀法制备CaWO4:Eu3+纳米长余辉发光材料。用XRD表征了所得长余辉发光材料的形态和物相组成,用荧光分光光度计测定了长余辉发光材料的发光性能。确定了用共沉淀法制备CaWO4:Eu3+长余辉发光体的最佳条件,其最佳煅烧温度为700℃,煅烧时间为2h。结果表明,共沉淀法制备的CaWO4:Eu3+长余辉发光材料比高温固相法所得材料有更好的长余辉性能。
CAWO4 : Eu3+ long afterglow phosphor was prepared with the co- precipitation method. The optimized synthesis conditions were determined. It was found that CAWO4 : Eu3+ phosphors prepared with the co - deposited method give better long afterglow properties than that from solid state reaction technique.