Figure 3.

AFM images of typical nanopillars. (a) Near the rim of the pit. (b) Close to the center of the pit. (c) At the center of the pit. (d) Cross section of pattern in (a). (e) Cross section of pattern in (b). (f) Cross section of pattern (c).

Zhang et al. Nanoscale Research Letters 2013 8:280   doi:10.1186/1556-276X-8-280
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