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PbxNayYzF2x+y+3z+3m:Erm3+上转换发光粉的低温燃烧合成及表征

Keywords: 上转换发光,低温燃烧合成,氟化物,发光材料

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Abstract:

采用低温燃烧合成(LCS)法一步合成了PbxNayYzF2x+y+3z+3m:Erm3+氟化物体系1550nm响应的红外上转换发光材料.通过正交实验研究了4种阳离子影响发光性能的主次关系及最佳配比,研究了燃料用量对晶相形成及上转换发光性能的影响.采用X射线粉末衍射仪、透射电镜、荧光分光光度计(耦合1550nm激光器)等手段对样品的物相、形貌及发光性能进行了测试与表征.结果表明:阳离子含量对红光发射强度影响的主次关系为Y3+,Pb2+,Na+,Er3+,最佳配比为Pb0.004Na0.003Y0.003F0.032:Er3+0.004.燃料取2.5倍理论用量时样品的结晶度和发光强度最高.

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