Figure 2.

Typical top-view SEM images of TiO2 nanorod arrays and Sb2S3-TiO2 nanostructures. (a) SEM image of a TiO2 nanorod array grown on SnO2:F substrate by hydrothermal process. Inset: A low-magnification SEM image of the same sample. (b) SEM image of the as-grown Sb2S3-TiO2 nanostructures. (c) SEM image of Sb2S3-TiO2 nanostructures annealed at 300°C for 30 min.

Li et al. Nanoscale Research Letters 2013 8:89   doi:10.1186/1556-276X-8-89
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