采用液相法成功的在球形Gd2O3:Eu荧光粉颗粒表面包覆一层纳米SiO2保护膜.扫描电镜分析可见包覆SiO2后颗粒粒径略微变大说明表面包覆一层纳米级的包覆层.XPS分析表明:SiO2包覆层与Gd2O3:Eu颗粒表面以Gd(Eu)-O-Si化学键的方式键合在一起的.荧光光谱分析表明:包覆后的Gd2O3:Eu3+颗粒仍旧是一种很好的发光材料.
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