Figure 2
From: Architectured van der Waals epitaxy of ZnO nanostructures on hexagonal BN
Heterointerface of vdW epitaxial ZnO/hBN observed by cross-sectional TEM. (a) Low-magnification cross-sectional TEM image of vertical ZnO nanoneedles grown on hBN. (b) high-resolution transmission electron microscopy lattice images of the ZnO nanoneedle/hBN heterointerface. The right insets are selected-area diffraction patterns obtained through Fast Fourier-transformed processing of the high-resolution transmission electron microscopy images marked with the enclosed areas. (c) Experimental and simulated convergence beam electron diffraction patterns of the ZnO nanoneedles preferentially grown along the O-polar (000
) direction.
