Fig. 1From: Highly efficient flexible structured metasurface by roll-to-roll printing for diurnal radiative coolinga Schematic illustrations of steps in roll-to-roll manufacturing processes for preparing 3D structured polymer metamaterial radiative cooling (PMRC) film. b Photograph of the fabricated PMRC film on a 50-cm-wide roll. c Top-view SEM image, d optical profilometer 3D image, and e measured reflectance and absorbance spectra of the fabricated PMRC filmBack to article page