Eu-doped Sr₂SnO₄ samples were synthesized using conventional ceramic route, followed by calcination at 1000 °C. Rietveld refinement analysis of XRD data indicates that the samples are single phase and crystallized into tetragonal crystal structure. Functional groups and metal-oxygen interaction has been studied using FTIR spectroscopy. The XPS analysis revealed the presence of oxygen vacancy, Sr in Sr²⁺ and Sn in Sn²⁺/Sn⁴⁺ in sample. The PL spectrum shows five peaks of Eu³⁺ due to transition ⁵D₀→⁷F_0,1,2,3,4. The transition peaks ⁵D₀→⁷F₀ and ⁵D₀→⁷F₂ found most intense in PL spectra, and their ratio with ⁵D₀→⁷F₁ were increased up to SSE6 and then decreased for SSE10, due to quenching phenomenon. An efficient energy transfer from oxygen vacancy to ⁵D₀→⁷F₀ state leads to enormously increase in their intensity. By utilizing these absorption states and emission states as metastable state, the present sample can be used in UV-filter, UV-detector, and optical device applications.

使用常规陶瓷路线合成Eu掺杂的Sr ₂ SnO ₄样品，然后在1000°C下煅烧。XRD数据的Rietveld细化分析表明，样品为单相且结晶为四方晶体结构。使用FTIR光谱研究了官能团和金属-氧相互作用。XPS分析显示样品中存在氧空位，Sr ²⁺中的Sr和Sn ²⁺ / Sn ⁴⁺中的Sn 。由于跃迁⁵ D ₀ → ⁷ F _0,1,2,3,4，PL谱显示出Eu ^3+的五个峰。过渡峰⁵ D ₀在PL光谱中发现→ ⁷ F ₀和⁵ D ₀ → ⁷ F ₂最强，由于淬灭现象，它们与⁵ D ₀ → ⁷ F ₁的比率增加到SSE6，然后降低到SSE10。从氧空位到⁵ D ₀ → ⁷ F ₀状态的有效能量转移导致其强度大大增加。通过利用这些吸收状态和发射状态作为亚稳态，本样品可以用于紫外线滤光片，紫外线检测器和光学装置应用中。