Fig. 1. Flowchart of preparation of fabric-based flexible circuit

Fig. 2. TEM (a) and HRTEM (b) images of Fe₃O₄; TEM (c) and HRTEM (d) images of Ag/Fe₃O₄

Fig. 3. SEM images of Fe₃O₄(a) and Ag/Fe₃O₄(b)

Fig. 4. (a) XRD patterns of Fe₃O₄ and Ag/Fe₃O₄; high-resolution XPS of Fe₃O₄ or Ag/Fe₃O₄ samples: (b) Ag 3d; (c) O 1s, and (d) Fe 2p

Fig. 5. Before and after digital photos of the sample with 1% Ag/Fe₃O₄ added: (a) unmodified coatings; (b) add Ag/Fe₃O₄-coating

Fig. 6. (a) Digital photos of electron beam directional curing Ag/Fe₃O₄-coating; (b) its fabric-based flexible circuit formed by electroless copper plating; (c) stainless steel mask with circuit structure, thickness 10 mm

Fig. 7. XRD patterns of Ag/Fe₃O₄-coating and fabric-based flexible circuit

Fig. 8. SEM images of fabric-based flexible circuits: (a) the junction between the conducting region and the non-routed area, conductive routing area (b), and non-routed area (c); microstructural model of fabric-based flexible circuits (d)

Fig. 9. EDS layered image of the fabric-based flexible circuit,along with its corresponding SEM and Cu element distribution map (from left to right): non-circuit region (a~c) and non-circuit region (d~f)

Fig. 10. Elemental composition map of non-circuit area (a) and circuit area (b) of fabric-based flexible circuit

Fig. 11. Resistance rate changes of flexible circuits made of fabric substrates under bending test (a, b, c); resistiance rate changes under different temperature conditions (d)

Fig. 12. Flexible circuits made of fabric substrates with LED lights in series connected to a 3 V DC power supply: on and off