Research Article

Growth Mechanism of Cubic-Silicon Carbide Nanowires

Figure 5

FESEM micrographs of Si surface heated for 1 h at different temperatures with activated carbon powder. (a) Porous Si structures are observed at with cracks shown in the inset of the figure. (b) Nanoclusters of SiC are revealed at , (c) Spherical and faceted SiC structures are shown at (inset: layers of SiC on the Si substrate), and (d) Pyramid-like SiC structures are demonstrated at .
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(a)
572865.fig.005b
(b)
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(c)
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(d)