Fig. 4
Images of the hierarchical flower-like ZnO nanostructure: a high-magnification SEM, b high-magnification SEM with 500 nm, c TEM, and d HRTEM
Fig. 4 | Nanoscale Research Letters
Images of the hierarchical flower-like ZnO nanostructure: a high-magnification SEM, b high-magnification SEM with 500 nm, c TEM, and d HRTEM