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. 2015 Dec 14;6:10103. doi: 10.1038/ncomms10103

Figure 1. Schematics and structure of a thin-film black gold membrane.

Figure 1

(a) Schematic illustration of the method to fabricate black gold membranes by employing pore-widening process into hexagonal AAO templates. (b,c) SEM images of black gold membrane (b) with top view, (c) with bird's eye view (52° tilted) and ordered hexagonal array of AAO template (b, inset). Scale bars, 2 μm (b,c) and 500 nm (inset), respectively. (d,e) Optical photographs displaying the laser beam path reflected by (d) a silver mirror and (e) a black gold membrane. Inset of e is the photo of a membrane.