Fig. 2: Structural investigation of 3D thin-shell ZnO with varying 2D plate-like grain sizes in thin-shell. | Nature Communications

Fig. 2: Structural investigation of 3D thin-shell ZnO with varying 2D plate-like grain sizes in thin-shell.

From: High figure-of-merit for ZnO nanostructures by interfacing lowly-oxidized graphene quantum dots

Fig. 2

a Photograph of 3D ZnO film on the sapphire substrate. b Cross-section of scanning electron microscopy (SEM) image of 3D ZnO. c TEM image of 3D ZnO. d, e Energy dispersive spectrometer (EDS) elemental mapping images corresponding to TEM image of c. f–h TEM images of 3D ZnO samples based on annealing temperature. The insets of f–h indicate the distribution of 2D plate-like grain sizes on the surface of thin-shell ZnO corresponding to the TEM images of f–h.

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