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采用溶胶-凝胶法制备Eu3+掺杂的ZnAl2O4/SiO2(ZAS)块状透明微晶玻璃发光材料.利用X射线衍射(XRD),透射电子显微镜(TEM)和荧光光谱(PL)等测试手段,系统研究了不同Eu3+掺杂浓度对ZAS发光性能的影响以及不同热处理温度对ZAS∶Eu3发光性能的影响.结果表明,ZAS∶Eu3+在611 nm处具有强烈的红光发射峰,发射强度随着Eu3+掺杂浓度的增加,出现浓度淬灭效应,当掺杂量为20mol%时,发光强度最大;随着热处理温度的升高,存在高温淬灭效应,当热处理温度为900℃时,材料发光强度最优.CIE色度图分析表明,ZAS∶0.20Eu3+是一种潜在、优良的红光显示微晶玻璃材料.

参考文献

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