Cubic Silicon Carbide Nanowires - Exotic Properties of Carbon Nanomatter - page 118

Fig. 5.16 SEM image of
nanowires grown using
magnetite nanoparticles as
catalyst

Fig. 5.17 HR-TEM
magnification of the
magnetite tip

5.5 Growth of Core-Shell Silicon Carbide—Silicon

Oxide Nanowires

Core-shell SiC-SiO 2 were synthesized from carbon monoxide in vapour phase and
silicon coming from the substrate. This method allow to obtain core-shell nanowires
in an easy and cheap way and it has high yield, since the growth procedure is quite
fast (30 min.). The optical properties of the so-obtained nanostructure are peculiar
because an enhancement of the core near-band-edge emission due to the presence of
the amorphous silica shell has been demonstrated.