A series of Eu³⁺ doped pompon-like Lu₂O₂SO₄ phosphors with diameter of ~800 nm have been synthesized by commercial available lutetium oxide (Lu₂O₃), nitric acid (HNO₃), europium nitrate (Eu(NO₃)₃·6H₂O), urea (CO(NH₂)₂), ammonium sulfate ((NH₄)₂SO₄) and ammonia (NH₃·H₂O) as the starting materials via a facile homogeneous precipitation method followed by a subsequent calcination process. The as-prepared products were well characterized by X-ray powder diffraction (XRD), thermogravimetry and differential scanning calorimeter (TG-DSC), flourier transform infrared spectra (FT-IR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and photoluminescence (PL) spectra. Studies have shown that the molar ratio of Lu³⁺:(NH₄)₂SO₄:CO(NH₂)₂ is very important in the homogeneous precipitation process, and the optimal ratio is selected as 1:25:50. In the subsequent calcination process, the effect of calcination temperature on the target product was studied and the optimal calcination condition is the calcination temperature of 800 °C for 2 h in air. And the morphology mechanism of the pompon-like Lu₂O₂SO₄ is explored, detailed investigation showed the formation of pompon structure is accompanied by two different growth mechanisms. According to PL spectra, under 396 nm ultraviolet (UV) light excitation, the strongest emission peak for the Lu₂O₂SO_4:x%Eu³⁺ phosphors located at 620 nm, which corresponds to the typical ⁵D₀-⁷F₂ transition of Eu³⁺ ions. The optimal doping concentration of Eu³⁺ ions in the Lu₂O₂SO₄ host lattice is 6.0%, whose average lifetime τ and color correlation temperature (CCT) are calculated to be 39.558 μs and 1915 K, respectively.

一系列的Eu ³⁺掺杂绒球状路₂ ö ₂ SO _4层的磷光体与〜800的直径纳米已经由市售氧化镥合成（路₂ ö ₃），硝酸（HNO ₃），硝酸铕（Eu（ NO ₃）₃ ·6H ₂ O），尿素（CO（NH ₂）₂），硫酸铵（（NH ₄）₂ SO ₄）和氨（NH ₃ ·H ₂O）作为原料，通过简便的均相沉淀法进行随后的煅烧过程。所制备的产品通过X射线粉末衍射（XRD），热重分析和差示扫描量热仪（TG-DSC），更有效的红外光谱（FT-IR），场发射扫描电子显微镜（FE-SEM），透射电子显微镜（TEM）和光致发光（PL）光谱。研究表明，Lu ³⁺：（NH ₄）₂ SO ₄：CO（NH ₂）₂的摩尔比在均匀的沉淀过程中，α是非常重要的，最佳比例选择为1:25:50。在随后的煅烧过程中，研究了煅烧温度对目标产物的影响，最佳的煅烧条件是在空气中800℃的煅烧温度2 h。并探讨了绒球状Lu ₂ O ₂ SO ₄的形态机理，详细研究表明绒球结构的形成伴随着两种不同的生长机理。根据PL光谱，在396 nm紫外线（UV）激发下，Lu ₂ O ₂ SO ₄的最强发射峰_：x％Eu ³⁺磷光体位于620纳米，这对应于典型的⁵ d ₀ - ⁷ ˚F ₂的Eu的跃迁³⁺离子。Lu ₂ O ₂ SO ₄主晶格中Eu ³⁺离子的最佳掺杂浓度为6.0％，其平均寿命τ和色相关温度（CCT）分别计算为39.558μs和1915K。