fig5

Figure 5. Flexible films with vertical multiaxial buckling structures. (A) 2D herringbone pattern created through sequential tensile release and an SEM image of a polymer gel/metal nanoparticle composite. Reproduced with permission^[54]. Copyright 2011, Wiley-VCH; (B) Randomly buckled SACNT/AC supercapacitor and SACNT conductor films formed using a biaxial pre-strain technique. Reproduced with permission^[55]. Copyright 2020, Royal Society of Chemistry; (C) Simulation results showing changes in buckling structures according to the x-y BR (the left image displaying the buckling structure at BR 0.75). Reproduced with permission^[56]. Copyright 2024, MDPI. SEM: Scanning electron microscope; SACNT: super-aligned carbon nanotube; AC: activated-carbon; BR: biaxial ratio.