Figure 6
From: Architectured van der Waals epitaxy of ZnO nanostructures on hexagonal BN
Shape-controlled vdW heteroepitaxy of ZnO nanoarchitectures on hBN layers. (a) Schematic of selective growth of ZnO nanowalls on hBN films for shaping the outer nanowalls. (b and c) Tilt-view scanning electron microscopy image of ZnO nanoarchitectures on hBN films with designed shape and spatial arrangements. (d) Cross-sectional schematic showing how ZnO nanoarchitectures are formed on a plasma-treated hBN area via vdW–MOVPE. (e) Room-temperature CL spectra of ZnO nanostructures. The insets are top-view scanning electron microscopy images (upper) and the corresponding monochromatic CL image obtained at a photon energy of 3.25 eV (bottom).
