WO3 nanoparticles blue powder 99.9% for Electrochromic

Product Description

Electrochromism refers to the phenomenon that the optical properties (reflectance, transmittance, and absorptivity) of materials undergo reversible and stable color changes under the action of an external electric field. Because electrochromic materials have the advantages of low color change voltage, various color changes, energy saving and environmental protection, they are widely used in smart windows, automobile anti-glare rearview mirrors, camouflage materials, electrochromic fabrics, information storage and detection, displays, etc. Application prospects.
Tungsten trioxide is an n-type semiconductor material and also a kind of "d0" oxide. The main frame of tungsten oxide is composed of tungsten oxide octahedrons connected end to end. In the space framework, it is surrounded by tungsten oxide octahedra. Pores can be inserted into small cations to form tungsten bronze. The reversible transformation process of tungsten oxide and tungsten bronze is always accompanied by the transfer of internal electrons and the change of tungsten valence, which triggers a color reaction and realizes controllable adjustment of transmitted light. 
At present, the tungsten trioxide with the best electrochromic performance is blue tungsten oxide. The tungsten oxide in the colored state is dark blue. Due to its softer color and better light barrier properties, it is suitable for daily household use. In addition, crystalline blue tungsten oxide also has a higher reflectivity to infrared after discoloration. It can achieve a heat insulation effect similar to that of low-e glass, thereby helping to reduce indoor energy consumption.
Adding cesium to tungsten oxide is the best known photo-induced thermal insulation material, and it can also be called cesium tungsten bronze. But compared to pure tungsten oxide, its cost is higher.

Nano-tungsten oxide is the most common raw material for smart coatings, and its advantage is electrochromic. In addition, tungsten trioxide also has a wide range of applications in gastrochromism, filters, and dye sensitization.

Packaging & Shipping

Package: doule anti-static bags, drums

Shipping: Fedex, DHL, EMS, TNT, UPS, Special lines, etc