A series of Eu³⁺ doped calcium magnesium silicate (CaMgSiO₄) phosphor samples were successfully prepared via solid state synthesis technique. Their structural and morphological studies were investigated by powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) measurements. Phase structure and phase purity of sample were investigated by Rietveld refinement method. The vibrational and bonding behavior of silicate groups were confirmed by Fourier transform infrared (FTIR) and Raman spectroscopy. The luminescent properties of prepared samples were studied by photoluminescence (PL) and thermoluminescence (TL) characteristics. The emission spectra recorded under the excitation wavelength λ_ex = 396 nm. The highest emission peak was observed at 595 nm which corresponds to the ⁵D₀ → ⁷F₁ transition of Eu³⁺ ions with selection rule ΔJ = 1. The concentration quenching and energy transfer mechanisms were elucidated by Blasse and Dexter's formula. The photometric parameters correlated color temperature (CCT), color rendering index (CRI) and color purity (CP) were computed using CIE chromaticity co-ordinate diagram. In addition, Judd-Ofelt (JO) parameters (Ω₂, Ω₄) and other derived radiative parameters were calculated using Judd-Ofelt theory from the PL emission spectra. Time resolved fluorescence spectra were carried out to determine the decay lifetime of the samples. The prepared samples are expected to be suitable candidates for the applications as solid state devices, lighting and optical displays.

采用固态合成技术成功制备了一系列Eu ³⁺掺杂的钙镁硅酸盐(CaMgSiO ₄ )荧光粉样品。通过粉末 X 射线衍射 (PXRD)、扫描电子显微镜 (SEM) 和能量色散 X 射线分析 (EDX) 测量研究了它们的结构和形态学研究。采用Rietveld精修方法研究样品的相结构和相纯度。通过傅里叶变换红外 (FTIR) 和拉曼光谱证实了硅酸盐基团的振动和键合行为。通过光致发光（PL）和热致发光（TL）特性研究了制备样品的发光性能。在激发波长 λ _ex下记录的发射光谱 = 396 纳米。在 595 nm 处观察到最高发射峰，对应于Eu ³⁺离子的⁵ D ₀ → ⁷ F ₁跃迁，选择规则 ΔJ = 1。浓度猝灭和能量转移机制由 Blasse 和 Dexter 公式阐明。使用CIE色度坐标图计算相关色温（CCT）、显色指数（CRI）和色纯度（CP）的光度参数。此外，Judd-Ofelt (JO) 参数 (Ω ₂ , Ω ₄) 和其他衍生的辐射参数是使用 Judd-Ofelt 理论从 PL 发射光谱计算的。进行时间分辨荧光光谱以确定样品的衰变寿命。制备的样品有望成为固态器件、照明和光学显示器等应用的合适候选者。