Figure 4.
aDigital camera image of a SiC–W18O49double-layer nanostructure sample showing density gradient owing to mass transport
of tungsten oxide source material; andb–dSEM image from different regions of the sample having only SiC nanowires, low density
W18O49and high density W18O49nanorods, respectively
Kim et al. Nanoscale Research Letters 2009 4:802 doi:10.1007/s11671-009-9318-6 |
