中文摘要：

用高温固相法制备了Sr7Zr（PO4）6∶Tb^3＋、Sr7Zr（PO4）6∶Ce^3＋及Sr7Zr（PO4）6∶Tb^3＋,Ce^3＋一系列荧光粉,并通过X射线衍射仪及荧光光谱仪分析了其结构和发光性质。结果表明,Sr7Zr（PO4）6∶Tb^3＋呈现特征绿色发射,最强发射峰位于543 nm,属于Tb^3＋的^5D4→^7F5跃迁,激发峰位于226 nm处,但激发带较窄。为拓宽其激发带的宽度,在Sr7Zr（PO4）6∶Tb^3＋中掺入了Ce^3＋,观察到掺入Ce^3＋后激发带变宽,且在Ce^3＋的激发波长处激发得到了Tb^3＋的发射,表明存在Ce^3＋到Tb^3＋的能量传递。

英文摘要：

The phosphors of SrTZr（ PO4 ） 6：Tb^3＋ , Sr7Zr（ PO4） 6：Ce^3＋ and Sr7Zr（ PO4 ） 6：Tb^3＋ , Ce^3＋ were prepared by the solid-state reaction. The structures of these powders were characterized by X ray diffractometer （XRD）. The excitation and emission spectra were characterized by spectrofluorimeter. The excitation spectrum of Sr7Zr（ PO4 ）6：Tb^3＋ shows a narrower band in the range of 200 - 250 nm with the maximum centered at 226 nm, which belongs to 7FJ→^7DJ transition of Tb^3＋ The photoluminescence spectra of Sr7Zr（PO4）6： Tb^3＋ exhibits four emission peaks. The strongest green emission peak is at 543 nm which belongs to ^5D4→^7F5 transition of Tb3~. The excitation spectrum of Sr7Zr（PO4）6： Ce^3＋ shows a broad band centered at 289 nm and the emission peak is at 374 nm. In order to broaden the width of the excitation band of Sr7Zr（ PO4 ）6：Tb^3＋ , Ce^3＋ ions are incorporated. It is found that the excitation band became broader. The excitation spectrum of Sr7Zr（ PO4 ）6： Ce^3＋ , Tb^3＋ shows two broad bands, respectively, the former belongs to the excitation of Tb^3＋ and the latter belongs to the excitation of Ce^3＋. The emission spectra of Sr7Zr（ PO4 ） 6 ： Ce^3＋ , Tb^3＋ exhibit strong emission peaks of Tb^3＋ excited by 289 nm, which is the excitation band center of Ce^3＋. It is speculated that the energy transfer occurs from Ce^3＋ to Tb^3＋.