(a) Morphologies of perovskite crystals networks. (b) Schematic of a PD (top), and photograph of network PD arrays (bottom). (c) I–t curve evolution at different bending cycles (0–10000 times) at a fixed angle of 40°.^[118] (d) Schematic illustration of fabricating the flexible MAPbI₃/PDPP3T PD. (e) UV–vis–IR absorption spectra of MAPbI₃ and MAPbI₃/PDPP3T composite films. (f) Responsivity versus bending cycle number at a radius of 7 mm under 650 nm and (g) 835 nm.^[171]