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RHEED images from ZnTe nanowires on GaAs(100) at different growth stages: (a) in the initial growth phase after start and (b) after complete growth, from the start of growth.
FESEM picture of nanowires: (a) plane view and (b) cross sectional view. The nanowires are oriented along the ⟨111⟩ directions of the substrate.
TEM image of ZnTe nanowires. A diffraction pattern from a large ensemble of nanowires is shown in the inset.
(a) TEM image of the top part of ZnTe nanowire with the metal Au catalyst particle at the tip. The crystallographic directions in the nanowire and in the metal nanoparticle (solid and crystalline at the TEM measurement temperature) are indicated. (b) Magnified view of the nanowire section indicated in (a) by the dotted rectangle. The perfect crystal structure of the NW core is clearly visible. (c) Selected area electron diffraction pattern from the top part of a NW. (d) Indexing of Bragg reflections originating from a ZnTe nanowire and from a Au particle (the indexes of Au reflections are in italics). It is seen that (002) planes of Au are parallel to planes of ZnTe.
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