应用水热合成技术制备了稀土掺杂复式钨酸盐NaRe(WO4)2(Re=La,Y,Gd)纳米晶体,水热合成温度随Re3+种类的不同而呈现较大的差异.稀土离子在NaRe(WO4)2纳米晶体中处于非反演对称中心位置.在980nm红外光激发下,Yb3+和Er3+共掺的NaRe(WO4)2纳米晶体可产生明显的绿色上转换发光,发光机理为双光子过程.
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