The color-adjustable phosphor Sr4La(PO4)3O:Ce3+,Tb3+,Mn2+ of WLEDs: luminescence and transfer of energy characteristics

A high heat solid-state technique was used to produce a set of phosphor Sr4La(PO4)3O:Ce3+,Tb3+,Mn2+ (Sr:Mn). In Sr4La(PO4)3O, the luminescence characteristics, resistance, and energy conversion between Ce3+ Tb3+ as well Mn2+ were thoroughly researched. Introducing activator particles can significantly increase dim green-emitting from red-emitting Mn via conversion. The color emissions might be changed by adjusting Ce3+/Tb3+ Ce3+/Mn2+ ion ratios. Sr4La(PO4)3O: 0.12 Ce3+,0.3 Mnz2+ specimen, we achieved white-emitting illumination, yielding hue coefficients (0.3326, 0.3298), showing that Sr:Mn could have promising implications for white light-emitting diodes (WLEDs).