Luminescence Performance of Yellow Phosphor Sr x Ba 1− x TiO 3 : Eu 3+ , Gd 3+ for Blue Chip

The Sr x Ba 1− x TiO 3 : Eu 3+ , Gd 3+ phosphors are synthesized by high temperature solid‐phase method. Multiple techniques including X‐ray diffraction (XRD), and scanning electron microscopy (SEM) are used to examine the surface morphology and structural properties of Sr x Ba 1− x TiO 3 : Eu 3+ , Gd 3+ phosphors. The optical properties are presented and discussed in terms of photoluminescence (PL) and photoluminescence excitation (PLE) spectra. The as‐obtained Sr x Ba 1− x TiO 3 : Eu 3+ , Gd 3+ phosphors show higher PL emission intensity (at 591, 611 nm). The peaks at 591 and 611 nm are attributed to Eu 3+ 5 D 0 ‐ 7 F 1 , 5 D 0 ‐ 7 F 2 . Gd 3+ has a strong sensitization on Eu 3+ . A certain amount of Sr 2+ and Ba 2+ is contributed to the intensity of light emission. After being irradiated with blue light, the phosphor samples emit yellow light. This suggests its potential applications in many fields.