A facile microwave-assisted hydrothermal method has been employed to synthesize a series of ScF₃: x Eu³⁺, y Bi³⁺ (x = 0 − 0.20, y = 0–0.05) crystals to improve the fluorescence performance by optimizing the concentrations of Eu³⁺ ions and Bi³⁺ ions. The as-obtained products then were characterized by thermal field emission scanning electron microscope (FE-SEM), X-ray powder diffractometer (XRD), high resolution transmission electron microscope (HRTEM), and photoluminescence (PL) spectrometer, systematically. The results manifest that the reaction temperature and reaction time play an significantly important role on the morphologies and sizes of the as-prepared products. Furthermore, the optical properties of ScF₃: x Eu³⁺, y Bi³⁺ samples was investigated in detail. The emission spectra of ScF₃: x Eu³⁺ recorded upon the excitation wavelength of 394 nm showed a strong emission peak located at 592 nm, which is corresponding to the magnetic dipole of the ⁵D₀–⁷F₁ transition of Eu³⁺ ions. Additionally, it was found that the luminescence of the samples has been deeply enhanced after the addition of an appropriate amount of Bi³⁺. The opportune concentration of Eu³⁺ and Bi³⁺ are x = 0.10 and y = 0.02, respectively.

已经采用一种简便的微波辅助水热法合成了一系列ScF ₃：x Eu ³⁺，y Bi ³⁺（x = 0-0.20 ，y = 0-0.05）晶体，以通过优化浓度来改善荧光性能。的Eu ³⁺离子和Bi ³⁺离子。然后通过热场发射扫描电子显微镜（FE-SEM），X射线粉末衍射仪（XRD），高分辨率透射电子显微镜（HRTEM）和光致发光（PL）光谱仪对所得产物进行系统表征。结果表明，反应温度和反应时间对所制备产物的形态和尺寸起着重要的作用。此外，详细研究了ScF ₃：x Eu ³⁺，y Bi ³⁺样品的光学性质。在394激发波长下记录的ScF ₃：x Eu ³⁺的发射光谱 纳米显示出一个强发射峰，位于592  nm处，对应于Eu ³⁺离子从⁵ D ₀ – ⁷ F ₁跃迁的磁偶极子。另外，发现在加入适量的Bi ³⁺之后，样品的发光得到了极大的增强。Eu ³⁺和Bi ³⁺的适当浓度分别为x = 0.10和y = 0.02。