Figure 1: Morphology of ZnO nanosheets.
From: Nanometre-thick single-crystalline nanosheets grown at the water–air interface
(a) Schematic illustration of the formation of ZnO nanosheets directed by surfactant monolayer. (b) Scanning electron microscopy (SEM) image of the nanosheets on a silicon substrate coated with 100 nm SiO2. Scale bar, 10 μm. (c) SEM image showing a typical nanosheet with an equiangular triangle shape. Scale bar, 5 μm. (d) Atomic force microscopy (AFM) topography scans of typical nanosheets with flat surfaces on a Si substrate. Scale bar, 5 μm. (e) TEM image of a corner of a 20-μm-sized ZnO nanosheet. Scale bar, 200 nm. (f) Corresponding SAED pattern of the nanosheet shown in e. (g) HRTEM image of the same nanosheet. Scale bar, 2 nm. (h) Corresponding Fourier transformation that shows a hexagonal symmetry. (i) HRTEM image of a nanosheet showing overlayer growth. Scale bar, 2 nm.
