Recently, tungsten-oxide-based material has received considerable attention among various photothermal nanomaterials because of its ability to absorb near-infrared light and its efficient light-to-heat conversion properties. In addition, tungsten-oxide-based material has an unusual oxygen defect structure and strong surface plasma resonance, which offers strong photoabsorption in a broad wavelength range of the near-infrared light region.

Tungsten oxide is an idea material for NO2 sensing. It has been reported that tungsten oxide based gas sensors exhibit excellent NO2 sensing properties to cover environmental standard of NO2. The experts have done researches to investigate several properties of nano crystallites of tungsten oxide including NO2 sensing characteristics.

Some experts have proposed a preparation method of inorganic all-solid WO3 electrochromic device. Wherein, the inorganic all-solid electrochromic device has a nickel oxide-zirconia-tungsten oxide stacked structure, and silver nanowires are spin-coated on the stacked structure.

Tungsten oxide is an electrochromic material that has been widely used as an electrochromic layer for assembling a new smart glass. The researchers have selected nano composite materials of tungsten oxide and niobium oxide to create such a smart glass. The substrate of the smart glass is amorphous niobium oxide, in which a tungsten oxide nanocrystal mesh-like structure is embedded. Although the two materials are electrochromic materials, their absorption spectra are different when they change color. Tungsten oxide nanocrystals absorb near infrared light, and niobium oxide absorbs visible light.