以碳酸氢铵作沉淀剂采用共沉淀法制备了(Y,Gd)2O3: Eu3+纳米粉体.用FT-IR、DTA/TG、XRD和SEM对样品进行了表征,并用荧光光度计分析了样品的发射光谱.结果表明:碳酸氢铵为沉淀剂,先驱沉淀物经150 ℃干燥,800 ℃煅烧保温2 h时,合成了近似球形、粒径均匀、约为15～20 nm、分散性好的(Y,Gd)2O3: Eu3+纳米粒子.随着掺入Eu3+浓度的增加, 发射峰强升高;当掺入5 mol%的Eu3+时,峰强最大; 当Eu3+的含量高于5 mol%时出现了浓度猝灭,峰强反而降低.
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