Figure 4
From: Evolution of morphology and microstructure of GaAs/GaSb nanowire heterostructures
Structural and compositional details of the S2 segment. (a) A TEM image of the lower part of the S2 segment from Figure 2c. (b) A typical EDS linescan as indicated by a red line in (a), which clearly shows the formation of a GaAs/GaSb core-shell heterostructure. (c) A high-resolution TEM image corresponding to the location indicated by a black arrow in (a), which implies a WZ structure of the core-shell NW. (d) A typical high-resolution TEM image showing the structural details of the GaAs core. The insets in (c) and (d) are the corresponding FFTs, respectively.