Ta₂O₅ Nanowires, Nanotubes, and Ta₂O₅/SiO₂ Core-Shelled Structures: From Growth to Material Characterization

Figure 5

(a) to (e) TEM images of Ta₂O₅/SiO₂ core-shelled nanowire formed under different annealing time of 1, 2, 4, 8, and 16 hours, respectively. (f) The annealing time as the function of the thickness of Ta₂O₅ shell layer. (g) The annealing time as the function of , from (3), with the corresponding fitting line.

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