Figure 5

(a) XRD patterns of 0.05 mol Er3+ doped YOF precursor sintered at different temperatures for 3 h. (b) Crystal structure of rhombohedral YOF.

(a) XRD patterns of 0.05 mol Er3+ doped YOF precursor sintered at different temperatures for 3 h. (b) Crystal structure of rhombohedral YOF.