Fig. 2
From: 2D wrinkle assisted zigzag plasmonic chains for isotropic SERS enhancement
Effect of parametric alterations on 2D wrinkling. a Schematic of 2D wrinkled substrate fabrication by loading ‘cross-shaped’ PDMS substrate into a bi-directional stretching device. The photograph of the relevant mold and the final 2D wrinkled PDMS substrate after strain release are also shown. b. Effect of plasma treatment time in case of symmetric stretching (15%) with AFM profiles for 60 s, 100 s, and 200 s. c. Sketch of increased strain (symmetric, 20%) for 100 s plasma treatment with the resulting AFM profile. d. Asymmetric strain (15% and 20%) for 100 s plasma treatment, resulting in the desired zigzag patterning as confirmed from the AFM image. The 3D models were created using Blender version 4.0. Link: https://www.blender.org/download/.
