【摘 要】
：
以碳酸锶、氧化铝、氧化铕和氧化镝为原料, 用高温固相反应法合成了稀土超长余辉发光材料 SrAl2O4∶Eu2+, Dy3+. 测试了该发光材料的激发光谱、发射光谱、余辉亮度及余辉时间
【机 构】
：
东北大学材料与冶金学院,长春光机学院材料系,吉林大学材料科学与工程学院,沈阳化工学院化学系
论文部分内容阅读
以碳酸锶、氧化铝、氧化铕和氧化镝为原料, 用高温固相反应法合成了稀土超长余辉发光材料 SrAl2O4∶Eu2+, Dy3+. 测试了该发光材料的激发光谱、发射光谱、余辉亮度及余辉时间, 激发光谱主峰分别位于320 和360 nm处, 激发波长的范围较宽, 从紫外到可见光区均可激发该发光材料. 发射光谱的主峰位于520 nm, 发光颜色为黄绿色, 余辉可达16 h以上. 解释了超长余辉发光材料的发光机制. 以苯丙乳液为成膜物, 添加适量的发光粉及适当的助剂研制出一种超长余辉发光涂料. 确定出了该涂料的最佳配
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