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.

Analysis of latest tungsten market from Chinatungsten Online

Chinese tungsten market is expected to continue to be strong in the short term as there are many positive news in the market. 

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.

China rare earth price is weak in the week ended on Friday February 10, 2023. Under the interweaving of positive and negative factors, the buyer’s market has a greater advantage.