Intense bluish-red color de-excitation by combining Ce³⁺ and Eu³⁺ ions has been observed in fluorophosphate (P₂O₅+K₂O+Al₂O₃+BaF₂+NaF₂ (PKABfNf)) glasses which were fabricated by adopting conventional melting and rapid quench technique. Photoluminescence spectra, lifetimes, and energy transfer (ET) process in the Ce³⁺/Eu³⁺:PKABfNf glasses were studied. The fluorescence spectra of co-doped glasses exhibit broad band emission at blue corresponding to Ce³⁺ ions which can enhance the intensity of the red emission of Eu³⁺ via an efficient ET mechanism. The ET from Ce³⁺to Eu³⁺ can be explained based on the Blasse's equation and Dexter's theory of resonant ET. Furthermore, critical ET separation of distance (R_c), luminous efficiency due to energy transfer (η_ET), CIE chromaticity co-ordinates (x,y), correlated color temperature (CCT) and color purity (CP) were calculated. The results reveal that the optimized Ce³⁺/Eu³⁺:PKABfNf glass can be a potential candidate for w-LEDs in lighting applications.

在氟磷酸盐（P ₂ O ₅ + K ₂ O + Al ₂ O ₃ + BaF ₂ + NaF ₂（PKABfNf））玻璃中观察到了通过结合Ce ³⁺和Eu ³⁺离子而产生的强烈的蓝红色消光。采用传统的熔化和快速淬火技术制造。研究了Ce ³⁺ / Eu ³⁺：PKABfNf玻璃的光致发光光谱，寿命和能量转移（ET）过程。共掺杂玻璃的荧光光谱在对应于Ce ³⁺离子的蓝色处显示宽带发射，这可以增强Eu ³⁺的红色发射强度。通过有效的ET机制。可以根据Blasse方程和Dexter共振ET理论解释从Ce ³⁺到Eu ^3+的ET。此外，距离（R的临界ET分离_Ç），发光效率由于能量转移（η _ET），CIE色度坐标（X，Y），相关色温（CCT）和色纯度（CP）进行了计算。结果表明，优化的Ce ³⁺ / Eu ³⁺：PKABfNf玻璃可以成为照明应用中w-LED的潜在候选者。