Figure 2.

FE-SEM and AFM images. (a) FE-SEM images of (i) the deposited silica sphere array on the PET substrate and (ii) the Au-coated silica sphere array on PET. (b) 5 μm × 5 μm scan AFM images and histograms of (i) the Au film on the PET substrate and (ii) the Au-coated silica sphere on the PET substrate.

Ko et al. Nanoscale Research Letters 2013 8:511   doi:10.1186/1556-276X-8-511
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