Figure 3. TEM images of a Si nanowire grown by the metal-catalyst-free process, and the electron diffraction patterns.

(a) Whole image of the Si nanowire, (b) an enlarged view of the tip of the nanowire, and (c) the electron diffraction pattern recorded along the [] zone axis from the tip of the nanowire. (d) The enlarged view and (e) the electron diffraction pattern of the middle section of the nanowire.