Figure 8
From: High-Mobility Bi2Se3 Nanoplates Manifesting Quantum Oscillations of Surface States in the Sidewalls
HAADF-STEM images of Be2Se3 nanoplates in cross-section.
(a) and (b) show two individual nanoplates cross-section geometry at low magnification. Although they have different size, the geometries are mostly similar. Upper/bottom surfaces are (001) facet, whereas sidewalls have (015) facets, with an angle of ~58 degrees with regard to the upper/bottom surface. (c) High resolution HAADF-STEM image of the sidewall surface at atomic resolution, viewed along the [100] zone axis. Bi columns are indicated by red dots and Se columns are indicated by green dots. (d) Schematic drawing of Bi2Se3 atomic arrays viewed along the [100] zone axis (Bi atoms: red spheres; Se atoms: green spheres).
