Simultaneously tuning the emission color and improving thermal stabilityviaenergy transfer in apatite-type phosphors

The thermal stability of Ba₂Y₃(SiO₄)₃F:Ce³⁺can be improved by the introduction of Tb³⁺due to the combined effect of fast energy transfer within the nearest Ce³⁺–Tb³⁺pairs and the following energy diffusion among the Tb³⁺ions.