中文摘要：

采用高温固相反应合成磁铅矿型（Sr,Ba）Al12O19∶RE^3＋（RE=Ce,Tb）发光材料,X射线衍射结果证明生成单一磁铅矿型结构。Ce^3＋产生302nm的发射峰和340nm左右的不太明显的肩,分别对应于5d→2F5/2和5d→2F7/2跃迁;激发光谱显示两个宽带峰,158nm峰对应于基质吸收,260 nm峰是由4f-5d跃迁引起的。Tb3＋的发射光谱显示特征的^5D3→^7Fj（j=2,3,4,5）和^5D4→^7Fj（j=4,5,6）跃迁;在激发光谱中,160nm左右的峰是由基质吸收和Tb^3＋-O2-电荷迁移带交迭产生的,193nm峰是Tb^3＋的4f-5d自旋允许跃迁引起的,233nm弱的峰是自旋禁戒4f-5d跃迁产生的。Ce^3＋的发射和Tb^3＋的f-f跃迁吸收（～320 nm）完全交迭,并且Tb^3＋的发光强度随Ce^3＋的浓度增加而增强,从激发光谱看出,Tb^3＋发光部分来自于Ce^3＋的吸收,具有Ce^3＋→Tb^3＋能量传递。

英文摘要：

The （Sr, Ba）Al12O19 ： RE^2＋ （RE=Ce, Tb） compounds have been synthesized by the solid state reaction technology. The single-phase magnetoplumbite-- type crystal structure has been identified by the X-ray diffraction analysis. The 302 nm peak and -340 nm not-clear shoulder are correspondence to the 5d→^2F5/2 and 5d→^2F7/2 transitions in the emission spectrum, respectively. The 158 nm peak and 260 nm peak are separately contributed to the host absorption and 4f-5d transition of Ces＋ in the excitation spectrum, The characteristic emission of ^5D3→^7Fj （j=2, 3, 4, 5）and ^5D4→^7Fj （j=4, 5, 6）transitions in the range of 400-600 nm are assigned in the emission spectrum of （Sr, Ba）Al12O19 ： Tb0.05^3＋. The -160 nm peaks arises from the overlap of the Tb^3＋-O^2- charge transfer band and the host absorption. The 193 nm and 233 nm peaks are attributed by the spin-allowed 4f- 5d transition and the spin-forbidden transition, respectively. The overlap between the emission of Ce^3＋ and the f-f transition absorption of Tb^3＋ exists in the （Sr, Ba）Al12O19 ： Tb^3＋ , Ce^3＋ compounds. The luminescence intensity of Tb^3＋ increases with the increase of the Ce^3＋ ion concentration. When the Ce^3＋ ion concentration reaches about 0.03 mole, the luminescence intensity of Tb^3＋ ion is nearly two times comparing with the non-codoping Ce^3＋ ion compounds. When the emission wavelength is 543 nm, the excitation spectra exhibit the 4f- 5d absorption of Ces＋ besides the host absorption and 4f-5d transitions of Tb^3＋ in the （Sr, Ba）All2O19 ： Tb^3＋ , Ce^3＋ compounds. According to the excitation spectrum, the part of the emission of Tb^3＋ comes from the absorption of Ce^3＋ ion. Therefore, it is illustrated that the Ce^3＋ →Tb^3＋ energy transfer has been existed in the （St, Ba）Al12O19 ： RE^3＋ （RE=Ce, Tb） compounds.