采用Pechini法合成了白光LED用红色荧光粉La1.9-xMoO6∶0.10Eu3+,xLi+ (x =0,0.10,0.20,0.25),并对样品分别进行了X射线衍射(XRD)、扫描电子显微镜(SEM)、电子能谱(EDX)以及荧光光谱(PL)等技术手段分析.PL光谱显示该荧光粉可被近紫外光(395 nm)和蓝光(466 mn)有效激发,产生616和623 nm强的红光发射,归属于Eu3+的5Do→7 F2电偶极跃迁.该荧光粉与近紫外LED芯片(370 ～ 410 nm)和蓝光LED芯片(450 ～ 470 nm)均匹配良好,具有潜在的商业应用价值.共掺Li+离子作为敏化剂能显著提高荧光粉的发光强度,且最优掺杂量为x=0.20.
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