Tb3+ and Sm3+ co-doped Ca2La3(SiO4)3F phosphor: synthesis, color regulation, and luminescence properties

The photoluminescence spectra of Ca 2 La 2.85− x (SiO 4 ) 3 F:0.15Tb 3+ , x Sm 3+ phosphors (left) could emit typical multicolor light with increasing doping contents of samarium (right).