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Supporting information may be found in the online version of this article.

FilenameFormatSizeDescription
jrs_4146_Supporting_information.docxWord document1286KTop-view SEM images of Substrate B (Ag-coated dealloyed flat structure with random pore distribution) Substrate C (Ag-coated nanobowl array with random pore distribution), and Substrate D (Ag-coated nondealloyed nanobowl array: no interstitial pores) before coated with Ag. SERS spectra of R6G measured on Substrate G (bare Ni-based nanovolcano array). Field intensity maps of Substrate A at the height corresponding to the bottoms of the nanobowls.

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