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. 2020 Nov 25;8(2):2002419. doi: 10.1002/advs.202002419

Figure 2.

Figure 2

Printed flexible eNPoM metafilms. a) Schematic of aerosol‐jet printing. b) Bright field (BF) images with different printing fill fractions (FF), and example printings with c) FF = 7% and d) FF = 18%. e) Photos of a printed flexible plasmonic film under bend testing. f) Scanning electron microscopic (SEM) image of printed character “A.” Inset shows core‐shell structure of PANI‐coated Au nanoparticles. g) DF and BF optical images of part of printed character “F” versus voltage applied from −0.15↔0.65 V and back (FF = 7% sample).