Tb³⁺/Eu³⁺ co-doped CGS phosphor was prepared successfully through solid-state reaction technique and their structural, and emission properties were inspected in depth. X-ray diffraction (XRD) represented single-phase tetrahedral structure of Ca₂Ga₂SiO₇ having P$\overline{4}$21m space group. The emission profile for Tb³⁺/Eu³⁺ co-doped CGS phosphor exhibited peaks in the different spectral regions (blue, green, orange, and red region) under 374 nm excitation. The energy transfer from Tb³⁺ to Eu³⁺ was ascribed to dipolar- dipolar interaction as confirmed by Dexter and Reisfeld theory with 49.5% ET efficiency. The emission color of the CGS phosphor can be modulated over a vast spectral region passing via white light region by appropriately regulating Eu³⁺ concentration. The obtained CIE chromaticity coordinates were (0.445, 0.416) with CCT value of 2966 K, indicating warm white light emission. The emission intensity for Tb³⁺/Eu³⁺ co-doped CGS phosphor at 423 K was 85.26% of that at 298 K, indicating strong thermal stability and potential applicability for w-LEDs application.

采用固相反应技术成功制备了Tb ³⁺ /Eu ³⁺共掺杂CGS荧光粉，并对其结构、发射性能进行了深入考察。X 射线衍射 (XRD) 表示具有 P的 Ca ₂ Ga ₂ SiO _{7 的}单相四面体结构$\overline{4}$21m空间群。Tb ³⁺ /Eu ³⁺共掺杂CGS磷光体的发射曲线在374nm激发下在不同光谱区域（蓝色、绿色、橙色和红色区域）中表现出峰值。从 Tb ³⁺到 Eu ³⁺的能量转移归因于偶极-偶极相互作用，正如 Dexter 和 Reisfeld 理论所证实的，ET 效率为 49.5%。通过适当调节 Eu ³⁺浓度，可以在通过白光区​​域的广阔光谱区域内调制 CGS 磷光体的发射颜色。获得的 CIE 色度坐标为 (0.445, 0.416)，CCT 值为 2966 K，表明发出暖白光。Tb ³⁺ /Eu ³⁺的发射强度 423 K 的共掺杂 CGS 荧光粉是 298 K 的 85.26%，表明具有很强的热稳定性和 w-LED 应用的潜在适用性。