Figure 3.

SEM images of PDMS pillars molded into the toluene (a, b) or hexane (c, d) treated mold. The pillar diameters are (a) 580 nm, (b) 150 nm (smaller holes not filled), (c) 820 nm, and (d) 180 nm (smaller holes not filled). Samples were tilted 45° for SEM imaging.

Con and Cui Nanoscale Research Letters 2013 8:394   doi:10.1186/1556-276X-8-394
Download authors' original image