839612.fig.002a
(a)
839612.fig.002b
(b)
839612.fig.002c
(c)
839612.fig.002d
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839612.fig.002e
(e)
839612.fig.002f
(f)
839612.fig.002g
(g)
Figure 2: (a) Bi2Se3 nanostructures formed at a of 95°C. (b–g): SEM images of Bi2Se3 nanostructures synthesised at a of 165°C. Nanoparticle laden warping and cavities (b), nanorods (c), nanoflowers (d), hollow nanotubes (e), nanofibers (f), and nanoneedles (g). Insets are the close up images.