Figure 5
TEM images of the α-Si3N4 nanobranches.
(a–b) Typical low-magnification TEM images of α-Si3N4 Y-shaped nanobranches. (c) T-shaped nanobranch with a dark spot at the root of a branch and (d) corresponding EDX spectrum of the dark spot. (e–g) Several growth stages of branched nanostructures. Insets in Fig. 5g were the SAED patterns recorded from the stem and the branch, respectively. (h) An HRTEM image of a branch junction, showing that the branch remained epitaxial.
