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A series of Ce 3+ /Dy 3+ -doped oxyfluoride borosilicate glasses prepared by melt-quenching method are investigated for lightemitting diodes applications. These glasses are studied via X-ray diffraction (XRD), optical absorption, photoluminescence (PL), color coordinate, and Fourier transform infrared (FT-IR) spectra. We find that the absorption and emission bands of Ce 3+ ions move to the longer wavelengths with increasing Ce 3+ concentrations and decreasing B 2 O 3 and Al 2 O 3 contents in the glass compositions. We also discover the emission behavior of Ce 3+ ions is dependent on the excitation wavelengths. The glass structure variations with changing glass compositions are examined using the FT-IR spectra. The influence of glass network structure on the luminescence of Ce 3+ /Dy 3+ codoped glasses is studied. Furthermore, the near-ideal white light emission (color coordinate x = 0.32, y = 0.32) from the Ce 3+ /Dy 3+ codoped glasses excited at 350 nm UV light is realized.

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