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中文摘要：
采用高温固相法制备掺杂Dy3＋、La3＋的Ce0．67Tb0．33MgAl11O19利用X-射线衍射分析（XRD）、FLS920型瞬态／稳态荧光分光光度计以及色坐标软件比较Dy3＋、La3＋分别取代Ce3＋、Tb3＋后对Ce0．67Tb0．33MgAl11O19物相、发光性能以及色坐标的影响．结果表明：在Ce0．67Tb0．33MgAl11O19分别取代Ce3＋、Tb3＋其发光性能有较大的提高，而用Dy3＋分别取代Ce3＋、Tb3＋后其发光性能也有所变化，但变化效果没有La3＋取代明显．
英文摘要：
Ce0.67Tb0.33MgAl11O19 doped Dy3＋ and La3＋ were prepared with high-temperature solid-state method. The influence of substitution of Dy3＋ and La3＋ for Ce3＋ and Tb3＋, respectively, on their phase structures, I.uminous performance, and color coordinate was compared with X-ray diffraction （XRD）, FLS920-type transient/steady-state fluorescent spectrophotometer, and color coordinate software. The re- sult showed that ion La3＋ could enhance the luminous performance of Ce0.67Tb0.33MgAl11O19 to a larger ex- tent, and Dy3＋ also could change the performance of Ce0.67Tb0.33MgAl11O19 but to a certain degree, re- markably less than the La3＋.
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