Sm³⁺/Eu³⁺: YAlO₃ (Sm³⁺/Eu³⁺: YAP) single crystal with a size of Ф (25-35) mm × (50-60) mm was successfully grown and analyzed. The use of Sm³⁺ co-doping to enhance Eu³⁺: ⁵D₀ → ⁷F₂ orange-red emission has been investigated in the YAP crystal for the first time. Compared with the Eu³⁺ single-doped YAP crystal, the Sm³⁺/Eu³⁺ co-doped YAP crystal possessed a larger fluorescence emission cross section (0.90×10⁻²¹ cm²), higher quantum efficiency (78.4%), and comparative fluorescence lifetime (1.74 ms), corresponding to the stimulated emission of Eu³⁺: ⁵D₀ → ⁷F₂ transition. Moreover, the energy transition efficiency of the energy transition process from the Sm³⁺: ⁴G_5/2 level to the Eu³⁺: ⁵D₀ level was calculated to be as high as 47.31%. These results suggest that Sm³⁺ ion can be used as an efficient sensitizer to enhance the orange-red fluorescence emission and can lead to the expansion of the emission range from 585–640 nm in Sm³⁺/Eu³⁺ co-doped YAP crystal.

中文翻译：

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在 YAlO3 单晶中通过 Sm3+ 共掺杂增强 Eu3+ 的宽带橙红发射

成功生长并分析了尺寸为Ф (25-35) mm × (50-60) mm的Sm ³⁺ /Eu ³⁺ : YAlO ₃ (Sm ³⁺ /Eu ³⁺ : YAP)单晶。首次在 YAP 晶体中研究了使用 Sm ³⁺共掺杂来增强 Eu ³⁺ : ⁵ D ₀ → ⁷ F ₂橙红色发射。与Eu ³⁺单掺杂YAP晶体相比，Sm ³⁺ /Eu ³⁺共掺杂YAP晶体具有更大的荧光发射截面（0.90×10 ^-21 cm ²)、更高的量子效率 (78.4%) 和比较荧光寿命 (1.74 ms)，对应于 Eu ³⁺ : ⁵ D ₀ → ⁷ F ₂跃迁的受激发射。此外，计算出从Sm ³⁺ : ⁴ G _5/2能级到Eu ³⁺ : ⁵ D ₀能级的能量转换过程的能量转换效率高达47.31%。这些结果表明，Sm ³⁺离子可以作为一种有效的敏化剂来增强橙红色荧光发射，并可以导致 Sm 的发射范围从 585-640 nm 扩大。³⁺ /Eu ³⁺共掺杂YAP晶体。