中文摘要：

采用机械力化学法结合热分解法合成SrZnO2：Sm^3＋,M^＋（M=Li,Na,K）超细粉体。用X射线衍射、扫描电镜及荧光分析仪表征样品的结构、形貌及发光性能。研究摩尔比n（Sm^3＋）：n（Li^＋）对样品发光性能的影响。结果表明：样品粒度分布均匀,粒径尺寸为100～300nm;在波长409nm的紫外激发下,样品发红光,发射主峰为606nm,对应于Sm^3＋的5G5/2→6H7/2跃迁;共掺碱金属离子可以显著增强发光强度,其发光性能与n（Sm^3＋）：n（Li^＋）密切相关,当n（Sm^3＋）：n（Li^＋）=1：3时,样品的发光强度最强。

英文摘要：

Ultrafine powders SrZnO2：Sm^3＋,M＋（M=Li,Na,K） were prepared by a mechanochemical process and thermal decomposi-tion.The X-ray diffraction patterns,scanning electron microscope and photoluminescence spectra were carried out to characterize their structural,morphological and luminescent properties.Mole ratios（n（Sm ^3＋ ） ：n（Li^＋） ） were investigated.Results show that the samples exhibit normal size distribution with the size about 100-300 nm.Under ultraviolet excitation with a wavelength of 409 nm,the sample gives a red luminescence that is attributed to the transitions^5G5/2→ ^6 H7/2 of Sm ^3＋,with the maximum emission spectra peak atλem=606 nm.The incorporation of alkali metal ions greatly enhances the luminescence intensity correlated with the ratio of n（M^＋） ：n（Sm^3＋） .