Electrochromism: Doped Tungsten Oxide Film

Electrochromism can be referred to the phenomenon that the optical properties of a doped tungsten oxide film undergo a stable and reversible color change under the action of an applied electric field, and its appearance is a reversible change in color and transparency. Wherein, the doped WO3 film is a kind of an inorganic oxide film that can causes electrochromic phenomenon.

More details, please visit:
http://www.tungsten-powder.com/tungsten-oxide.html

With the development of economy and the improvement of people's living standards, people are increasingly feeling the impact of natural environment on human life. Also, electrochromism has attracted widespread attention since it was first proposed. Subsequently, a series of inorganic oxides and organic materials with electrochromic phenomena were successively discovered and studied. Among all these electrochromic materials, tungsten trioxide has been studied extensively and intensively, becoming the most widely used inorganic electrochromic material due to its own excellent electrochromic properties and high coloring efficiency. However, the pure tungstic acid sol is very unstable with poor film forming properties. Therefore, the response time, life and reliability of the pure electrochromic thin film have weak points that cannot be ignored, which seriously affects its application prospect. Therefore, It is necessary to carry out doping modification. That is to say, doping modification of tungsten oxide electrochromic thin film is also a hot spot in the field of functional materials.

• < Prev
• Next >