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采用高温固相合成法制备了Sr1-xBaxA2O4:EU2+夜光粉，发现以木炭粉作为还原剂，A12O3与SrCO3的摩尔比为1．85：1,激活剂EU2＋浓度为XEU2＋＝0．05～0．07，反应温度7≥1200℃，灼烧时间3h，并掺人少量H3BO3作助熔剂的条件下，可获得余辉亮度较ZDS型夜光粉好的长余辉发光材料SrA12O4：Eu2+。掺入少量Ba2+取代部分Sr尸+所合成的SY0．8Bao．ZAl2O4：Eu2+同样具有良好的长余辉特性。研究了Sr1-xBaxA2O4:EU2+（X=0．0.0．2）的激发和发射光谱，并对其发光衰减进行了比较和分析。
Sr1-xBaxA2O4: EU2 + luminescent powder was prepared by high-temperature solid-state synthesis. The results showed that the molar ratio of A12O3 to SrCO3 was 1.85: 1 and the concentration of activator EU2 + was 0.05-0.0 for charcoal powder. 07, the reaction temperature 7 ≥ 1200 ℃, burning time 3h, and doped with a small amount of H3BO3 as a flux, the long afterglow luminescent material SrA12O4: Eu2 + with better afterglow brightness than ZDS type luminous powder can be obtained. Incorporation of a small amount of Ba2 + part of the replacement of Sr Corp + SY0.8Bao synthesized. ZAl2O4: Eu2 + also has good long afterglow characteristics. The excitation and emission spectra of Sr1-xBaxA2O4: EU2 + (X = 0.0.0.2) were studied, and their emission decay was compared and analyzed.