Fig. 4: Coupling photo-induced 2D information switching and force- and thermo-induced 3D information switching.
From: Self-growth of programmable 2D- and 3D-coupling responsive coating for anti-counterfeiting
a Schematic illustration and 3D profiles of thermostable 3D information. The scale bar is 1 mm. b The 2D profile of the grown structures under the alternating stimulation of force and heat. c Schematic illustration and 3D profiles of thermo-induced reversible 3D information switching. The scale bar is 1 mm. d The 2D profile of the grown structures under the alternating stimulation of force and heat. Inset in (d): optical photographs of grown sample (P1) under force and heat. The scale bar is 2 mm. e Schematic illustration and photographs of photo-induced fluorescence switching of P1 under UV (365 nm, 2.8 mW/cm2, 10 min) and Vis. (525 nm, 1.34 mW/cm2, 12 min). The scale bar is 1 cm. f Photo-induced fluorescence switching of P1 under UV and Vis.
