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(a) Schematic showing sequential steps to fabricate CAuNEs. (b) FE-SEM images of three nanopatterns of CAuNEs with diameters of 500 nm, 700 nm, and 900 nm, corresponding to the left illustration of (a). (c) FE-SEM images of CAuNEs of different diameters after PR stripping step, corresponding to the right illustration of (a). Scale bar = 1 µm.
