Figure 3

(a–d) TEM image, HRTEM image, SAED pattern and EDS spectrum of 0.05 mol Er3+ doped GdOF nanocrystals sintered at 650 °C, respectively. (e–h) The two-dimensional mapping distribution of F, O, Gd and Er, respectively.

(a–d) TEM image, HRTEM image, SAED pattern and EDS spectrum of 0.05 mol Er3+ doped GdOF nanocrystals sintered at 650 °C, respectively. (e–h) The two-dimensional mapping distribution of F, O, Gd and Er, respectively.