A slow evaporation solution growth technique is used to grow rare earth (Eu³⁺ and Tb³⁺) doped lithium sulfate monohydrate (LSMH) single crystals. X‐ray diffraction analysis of these crystals confirms the monoclinic crystal structure with P2₁ space group. Energy dispersive X‐ray spectroscopy is used to check the incorporation of dopants into the crystal lattice of these LSMH crystals. Dielectric, UV–vis photoluminescence spectroscopy studies are carried out to study the electrical and optical behavior of these crystals. The optical bandgap decreases by doping and the current material follows the direct allowed transition. The dielectric constant and ac conductivity slightly increase with the incorporation of Eu³⁺ and Tb³⁺ ions in the crystal matrix. The effect of doping on the functional groups of LSMH crystals is confirmed by Fourier transform infrared spectroscopy. The micro‐Raman spectroscopic technique is carried out on these samples, confirming the stress experienced by the crystal with dopants, and further leading to the degradation of the crystal structure. The photoluminescence emission with a large decay time of the as‐grown crystals is dominated by the ⁵D₀ → ⁷F_j transitions of Eu³⁺ and ⁵D₄ → ⁷F_j transitions of Tb³⁺ ions, and further provides a possibility of using them as potential optical materials.

中文翻译：

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Eu3 +和Tb3 +离子掺杂后一水合硫酸锂单晶的生长和表征

缓慢蒸发溶液生长技术用于生长稀土（Eu ³⁺和Tb ³⁺）掺杂的硫酸锂一水合物（LSMH）单晶。这些晶体的X射线衍射分析证实了具有P 2 ₁空间群的单斜晶体结构。能量色散X射线光谱法用于检查掺杂剂是否掺入这些LSMH晶体的晶格中。进行了介电，紫外可见光致发光光谱学研究，以研究这些晶体的电学和光学行为。光学带隙通过掺杂而减小，并且当前材料遵循直接允许的跃迁。随着Eu ³⁺的引入，介电常数和交流电导率略有增加晶体中的Tb ³⁺离子。傅立叶变换红外光谱证实了掺杂对LSMH晶体的官能团的影响。在这些样品上进行了显微拉曼光谱技术，确认了掺有掺杂剂的晶体所承受的应力，并进一步导致了晶体结构的退化。与所生长的晶体的大的衰减时间的光致发光发射由主导⁵ d ₀ → ^7个˚F _Ĵ铕转变³⁺和⁵ d ₄ → ^7个˚F _Ĵ Tb中的过渡³⁺ 离子，并进一步提供了将其用作潜在的光学材料的可能性。