There is a kind of glass in the Korean drama "big", which is transparent at first, but becomes white and opaque after pressing a button. What kind of glass is this?

Electrochromism refers to the phenomenon that optical properties (reflectivity, transmittance, absorption rate, etc.) change. ) under the action of external electric field, it changes color stably and reversibly, which shows reversible change of color and transparency of appearance. Materials with electrochromic properties are called electrochromic materials. Electrochromic material is a new functional material, which is widely used in information, electronics, energy, architecture and national defense. Devices made of electrochromic materials are called electrochromic devices.

2065438+In August 2006, a research group of MIT developed a new material, which can automatically change the color of glass without hanging curtains. In fact, it is to use electric field to produce electrochemical redox reaction, which changes the penetration characteristics of light and then causes color changes.