采用高温固相反应合成MZnPO4∶RE(M=Li,Na,K; RE=Eu3+,La3+,Ce3+),用X射线衍射(XRD)、扫描电镜(SEM)和能谱分析(EDS)等方法对产物进行了表征,并对产物的发光性能进行研究.结果表明:掺杂三价稀土离子Eu3+,La3+,Ce3+没有改变MZnPO4(M=Li,Na,K)的晶体结构和颗粒形貌;在紫外光(260 nm)激发下,Eu3+掺杂的MZnPO4∶Eu3+ (M =Li,Na,K)改变了MZnPO4(M=Li,Na,K)原有的发光波长,发射橙红色光,主峰位于595 nm附近,为Eu3+的5 D0→7F1跃迁发射;La3+,Ce3+掺杂的MZnPO4∶RE(M=Li,Na,K,RE=La3+,Ce3+)则发射蓝色光,最高峰对应波长为400 ～ 500 nm,没有改变MZnPO4(M=Li,Na,K)的发光波长,但提高了强度,La3+掺杂的强度大于Ce3+掺杂;除了基质本身对发光的贡献外,Ce3+有很弱的5d1 →4f1的跃迁发射,而非荧光稀土离子La3+作为添加剂可提高基质材料的荧光性能.
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