The glass samples with the composition xEu₂O₃-yDy₂O₃–15SiO₂–20CaO–65P₂O₅ (x = 0.5, 1.0, 1.5; y = 0.5, 1.0, 1.5) have been prepared by the conventional melt quenching technique. XRD patterns showed that all glass samples were amorphous. Three kinds of excitation light (348 nm, 363 nm, and 394 nm) were selected to excite the glass material for luminescence study in visible range. White light and tunable light emission were observed for the glass sample under the 348 nm excitation wavelength, and we found the energy transfer from Eu to Dy ions. The color coordinates of 0.5Eu₂O₃-0.5Dy₂O₃–15SiO₂–20CaO–65P₂O₅ glass sample (under 348 nm excitation) are x = 0.3329, y = 0.3351 (very close to pure white light in the CIE diagram), and the correlated color temperature (CCT) is about 5900 K. With the change of Eu and Dy content in the glass, its CIE coordinates could be located in white light, or blue, or orange/yellow region, therefore, the Eu³⁺, Dy³⁺ codoped phosphate glass will be used as a white light emitting material or as a tunable light material.

组成为x Eu ₂ O ₃ - y Dy ₂ O ₃ –15SiO ₂ –20CaO–65P ₂ O ₅的玻璃样品（x  = 0.5，1.0，1.5; y ＝ 0.5、1.0、1.5）已经通过常规的熔融淬火技术制备。XRD图谱表明，所有玻璃样品均为无定形。选择三种激发光（348 nm，363 nm和394 nm）激发玻璃材料，以便在可见光范围内进行发光研究。在348 nm激发波长下观察到玻璃样品的白光和可调光发射，我们发现能量从Eu离子转移到Dy离子上。0.5Eu ₂ O ₃ -0.5Dy ₂ O ₃ –15SiO ₂ –20CaO–65P ₂ O ₅的色坐标玻璃样品（在348 nm激发下）的x = 0.3329，y = 0.3351（在CIE图中非常接近纯白光），相关色温（CCT）约为5900K。随着Eu和Dy含量的变化在玻璃中，其CIE坐标可能位于白光，蓝色或橙色/黄色区域，因此，Eu ³⁺，Dy ³⁺共掺杂的磷酸盐玻璃将用作白色发光材料或可调光。材料。