fig7

Figure 7. HRTEM images and corresponding diffraction patterns of both amorphous and crystalline regions: (A) HRTEM image; (B) High magnified HRTEM image of the red region in Figure 7A; (C) the diffraction pattern of Amorphous region in Figure 7B; (D) the diffraction pattern of Crystal region in Figure 7B. HRTEM: High-resolution TEM; TEM: transmission electron microscopy.