Fig. 5: Rolled-up SW for energy saving and lens protection.
From: Self-rolling of vanadium dioxide nanomembranes for enhanced multi-level solar modulation
a Schematic of multi-level light control by different temperatures. b Photograph of rolled-up SW at different temperatures. c Transmittance spectra of the rolled-up SW at different temperatures. d Schematic of the house model for the rolled-up VO2 SW demo. e The daily indoor temperature modulation of different seasons in Shanghai by using different windows. f Annual energy conservation with different windows compared to the normal glass window in 7 cities. The blue areas indicate that the annual average temperature (τavg) of the city is lower than 24 °C, and the red areas are the opposite. g Schematic of rolled-up SW as a smart lens protective cover. h Photograph and infrared images were taken by the rolled-up SW-installed camera at different temperatures. i Temperature dependence of VO2-based smart lens protective cover on the time. The gray region is heated by high power infrared radiation. Source data are provided as a Source Data file.
