WO3 film is as one of the most commonly used inorganic electrochromic materials and the most popular smart insulating material, so it is often used to obtain a smart sun room, to play the role of heat insulation, heat preservation and UV-shielding.

WO3 film can be used to assemble a liquid electrochromic device, which acts as an electrochromic layer material. It is reported that some scholars have assembled a liquid electrochromic device with an area of about 10cm × 8cm.  The digital photos of the assembled liquid electrochromic device are shown as below.

WO3 powder, as an inorganic electrochromic material, is the most commonly used electrochromic material for preparing the electrochromic layer (electrochromic film) of electrochromic devices. And it is important to carry out X-ray diffraction analysis (XRD analysis) of the prepared WO3 film. In this regard, some experts said that as the tungsten trioxide film produced is very thin, if the film coated on the substrate is directly used for XRD analysis, the weak diffraction peak of the film will be replaced by a stronger substrate diffraction peak.

As a new type of environmentally-friendly transparent heat ray shielding material, cesium tungsten bronze has excellent visible light transmittance and can shield near-infrared rays in a wide frequency band with high shielding ratio of near-infrared rays.

As a new type of environmentally friendly near-infrared shielding material, cesium tungsten bronze is considered to be the most suitable energy-saving material for producing automotive glass windows or glass windows, doors or glass curtain walls of the buildings.

Cesium tungsten bronze is an electrochromic material that can undergo electrochromic effects. So, nano particle size cesium tungsten bronze is often applied to produce different types of heat insulation materials for applying to smart windows of buildings or cars. But what is the electrochromic effect? And why does cesium tungsten bronze have different colors?

Cesium tungsten bronze is a photochromic material with good photochromic properties, so it can be used to prepare a variety of transparent heat insulation materials including thermal insulation coatings, thermal insulation films and heat insulating glasses. And these functional materials are widely used in the glass windows or glass doors of the buildings or cars to play the role of heat insulation and heat preservation, thereby reducing energy consumption and reducing cooling and heating costs. Cesium tungsten bronze is one type of photochromic materials, and cesium tungsten bronze is the most well-known one.

Cesium tungsten bronze nanopowder is a functional material with strong absorption of near-infrared light and high visible light transmittance. So, it is also known as a near-infrared shielding material. It is commonly used to prepare transparent heat insulation materials for saving energy. And therefore the application prospects of cesium tungsten bronze in the field of building energy-saving renovation and automotive glass insulation are very broad. Therefore, cesium tungsten bronze has been paid more and more attention by experts and scholars.

It is reported that the experts first make the nano cesium tungsten bronze into the CsxWO3 slurry, and then the obtained slurry is made into the transparent heat-insulating coating, and finally, it is sprayed onto the glass windows or glass doors of the living room to obtain the living room thermal insulating film - a smart film.

Nano cesium tungsten bronze is mainly used to produce bathroom thermal insulating film. The prepared film is a smart film that has the advantages of high heat insulation, high heat preservation, high UV shielding performance, good anti-glare function and high visible light transmittance, so it has been accepted by the public.