At the beginning of the week, China’s ferro molybdenum, molybdenum oxide and molybdenum powder prices start to decline slightly. 

Researchers fabricated 1D W₁₈O₄₉ nanomaterials for near-infrared shielding of electrochromic devices. These tungsten oxide films all had high transmittance in the visible region. However, the researchers did not explore the change in transmittance during the color change. The researchers fabricated a flexible electrochromic device (ECD) with 63% transmission modulation between 760 and 1600 nm, yet did not tap the relationship between the transmission of visible and near-infrared light.

When the tungsten oxide material is used in the electrochromic (EC) window of electrochromic devices (ECD), three modes can be achieved, namely, a bright mode when the transmittance of both visible and near-infrared light is relatively high; a cool mode when the transmittance of visible light is high and the transmittance of near-infrared light is relatively low; and a dark mode when the transmittance of both of them is low. cooling mode when the transmittance of both is low; and the dark mode when the transmittance of both is low.

Most previous studies on tungsten oxide for the application of electrochromic electrodes have focused on improving its electrochromic performance in the visible spectral region while neglecting electrochromic performance in the near-infrared (NIR) and infrared (IR) spectral regions. Previous research objects have focused on obtaining WO₃ conductive films with wider light modulation amplitude, shorter response time, and higher coloration efficiency in the visible region.