Insights into blue-light activated red-emitting persistent luminescence from Pr3+-doped phosphors

Herein, an advanced blue-light charging and red-emitting phosphor CaCd 2 Ga 2 Ge 3 O 12 :Pr 3+ was designed. This material shows superior photoluminescence properties and super-long afterglow, which could be a promising choice for AC-LEDs and other fields.