Figure 5
From: Revising morphology of 〈111〉-oriented silicon and germanium nanowires
Views of (112) surface and {112} facets. (a) The top view of the (112) surface with the 2 ×1 reconstruction of silicon or germanium. The surface unit cell is indicated by the solid, yellow lines. Atoms which form the pentagon-like structure are indicated: dimer atoms are in dark blue, the rest atoms are in light gray. ( b ) The lateral view of the {112} facet acting as an edge in the SiNW with diameter of 3.4 nm which cross section is presented in Figure 1. ( c ) The lateral view of the large in size {112} facet in the SiNW with diameter of 3.1 nm which cross section is presented in Figure 2. ( d ) The lateral view of the large in size {112} facet in the SiNW with diameter of 3.1 nm which cross section is presented in Figure 3. For the lateral views ( b ) – ( d ) of SiNWs three unit cells along the wire axis are shown. Atoms involving in the the pentagon-like structures are indicated in a similar way as for the Si(112) surface ( a ).