Fig. 4
From: Fluid drawing printing 3D conductive structures for flexible circuit manufacturing

Performance test of thermally treated 3D filamentary architectures. a The relationship between voltage and current at different thermal treatment temperatures. The inset shows the relationship between thermal treatment temperature and silver wire resistivity. SEM images show the silver wires after thermal treatment at 100 °C (b) and 500 °C (c). d The pattern without thermal treatment is broken to form a large circle. e The thermally treated pattern is preserved with no deformation. f Continuously printed architecture of silver wires. Pictures of silver wires at 10 mm (g) and 3 mm (h) radius of curvature. i The resistance change (Rn) is normalized after n cycles to the initial resistance (R0) before cyclic testing. The inset shows the resistance change curve