fig12

Figure 12. (A) Photographs of rGO and rGO-based composite films including free-standing and flexible rGO films (denoted as G), TiO₂-rGO film, and TiO₂-rGO-PPy film. (B) Bent flexible TiO₂-rGO film. (C) Bent flexible TiO₂-rGO-PPy film^[130]. (D) Schematic illustration of the as-assembled hybrid high-performance, flexible, and all-solid-state supercapacitor. (E) CV curves of FSS at different curvatures. (F) Photographs of FSS under different bending conditions and an LED light bulb lit up by FSS at the curvature of δ = 327 mm m^-1[17]. rGO: Reduced graphene oxide; PPy: polypyrrole.