These figures include 1) morphological and spectroscopic characterization as well as electrical measurement data of perovskite photodetectors and flexible ITO electrodes; 2) electrical and optical simulation results of perovskite light-emitting diodes with nanostructured perovskite emissive layer; 3) morphological and surface wettability characterization and fog collection tests of ultrathin metal-mesh Janus membranes with nanostructured surfaces.