Figure 2 | Scientific Reports

Figure 2

From: Surface energy-mediated construction of anisotropic semiconductor wires with selective crystallographic polarity

Figure 2

TEM images of ZnO wires: Cross-sectional TEM images and high-resolution TEM images of ZnO (columns 1–2, top to bottom).

(a), ZnO wires with a hexagonal cross-section. A high-resolution TEM image obtained from a cross-section of a wire and the corresponding SAED pattern indexed to wurtzite ZnO show that a wire grows along a polar [0001] direction parallel to non-polar side planes. (b–c), ZnO wires with diamond (b) and rectangular (c) cross-sections, respectively. The corresponding SAED patterns HRTEM images indicate that wires can be preferentially grown with the non-polar and directions.

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