Fig. 3: Dynamic regulation of solar radiation through electrochromic function.
a The transmittance spectra of EC and SLE4 at bleached and colored states. b, c The transmitted solar irradiance of EC and SLE4 films at bleached and colored states under solar spectral irradiance. d Photographs of SLE4 smart window solid devices at bleached and colored state with the infrared images for the indoor blackbody under the 100 mW cm−2 illumination. e The temperature of blackbody in the model chamber installed with bleached and colored selective SLE4 smart window solid devices under the simulated sunlight. The corresponding error bar represents the standard deviation. For calculation, the cooling effect of each sample was measured three times. f Measured temperature variation of indoor blackbody and outdoor air in the SLE4 smart window chamber and EC window chamber under simulated illumination of different directions. The windows were exposed to simulated light in area 1 and out of light in area 2. g The electrochromic switching time of SLE4 film. The bleached time (tbleached) is 4.0 s and colored time (tcolored) is 4.5 s at 613.5 nm, and the bleached time is 5.0 s and colored time is 6.5 s at 900 nm. h In situ transmittance spectra of SLE4 film after bending cycle tests. The length of the sample is 7 cm, and the bending radius of the sample is 1.5 cm. Source data are provided as a Source Data file.
