Figure 3.

SEM images describing the formation of the porous Ag film template. (a) SEM image of the sample after RIE treatment of 55 s. (b) SEM image of the sample after 5-min Ag deposition. (c) The sample after removal of the PS spheres by ultrasonication.

Su et al. Nanoscale Research Letters 2013 8:405   doi:10.1186/1556-276X-8-405
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