Yttrium aluminum perovskite (YAP), or YAlO₃, shows promising potential as an up-conversion (UC) host material due to its excellent fluorescence properties and relatively lower phonon energy as compared to those of the other complex-oxide host materials. Herein, YAlO₃ was synthesized using the convenient co-precipitation technique, and single-phase YAP powder was successfully developed; it was characterized by thermal analysis, X-ray diffraction, Raman spectroscopy, and field-emission scanning electron microscopy. We found that the hexagonal and orthorhombic single-phase YAPs were crystallized at 950 C and 1200 C, respectively. Additionally, Er³⁺(1, 5, 10at%)-doped orthorhombic YAP powders were similarly synthesized to study their fluorescent properties; they exhibited a fluorescence spectrum due to the ⁴I_13/2 to ⁴I_15/2 energy transition, and green and red UC spectra due to the (²H_11/2, ⁴S_3/2) to ⁴I_15/2 and ⁴F_9/2 to ⁴I_15/2 energy transitions, respectively. We believe that these findings will be highly effective in the fabrication of various efficient RE³⁺:YAP UC phosphors.

钇钙钛矿铝（YAP）或YAlO ₃由于与其他复合氧化物基质材料相比具有优异的荧光特性和相对较低的声子能量，因此有望作为上转换（UC）基质材料。本文采用方便的共沉淀技术合成了YAlO ₃，成功开发了单相YAP粉末。通过热分析，X射线衍射，拉曼光谱和场发射扫描电子显微镜对其进行表征。我们发现六角形和正交的单相YAP分别在950 C和1200 C下结晶。此外，Er ³⁺相似地合成了（1、5、10、10at％）掺杂的正交YAP粉末，以研究其荧光性质。由于⁴ I _13/2到⁴ I _15/2的能量跃迁，它们表现出荧光光谱；由于（² H ₁₁ / ^2，4 S _3/2）到⁴ I _15/2，它们呈现绿色和红色UC光谱。和⁴ F _9/2到⁴ I _15/2的能量跃迁。我们相信这些发现将在制造各种有效的RE ³⁺：YAP UC荧光粉中非常有效。