Nanowires, Nanotubes, and Core-Shelled Structures: From Growth to Material Characterization
Figure 2
(a) A TEM image of the Ta2O5/SiO2 core-shelled structures formed by annealing the Si NWs in a Ta ambient for 8 hours. (b) The corresponding HRTEM image taken from the rectangular area marked as 1 of (a). (c) The EELS spectra of oxygen K-edge ELNES recorded from a and b positions of (a) and the as-synthesized SiO2 NWs. (d), (e) Other EELS spectra of the Ta2O5 shell.
