A universal approach to fabricating infrared-shielding smart coatings based on vanadium dioxide

Abstract

Vanadium dioxide (VO2) is identified as one of the most promising candidates in smart windows due to its metal-to-insulator transition. Most reported studies concentrated on the improvement of their optical properties in sunlight wavelength, while the significant effect of their emissivity in the mid infrared region (MIR) was rarely studied. Here, we proposed a universal approach to fabricating W - doped VO2 based smart coatings with excellent infrared - shielding ability and good thermochromic performance. The W dopant is used to decrease the phase transition temperature of VO2, and promote the practicability. We believe that the method will attract more attention to MIR properties of VO2 based smart coatings and improve the dynamic temperature management ability significantly.