Cs0.33WO3, or cesium tungsten bronze, is mainly applied for preparing coating glass. As such a coating glass is more and more popular, the functional material Cs0.33WO3 is also attracting much attention. According to the experts, cesium tungsten bronze is hot pressed to form a sintered pellet. And the extremely hard surface of the pellet is polished and measured with a spectroscopic ellipsometer to determine the dielectric function. The image of dielectric function of Cs0.33WO3 is shown as follows.

Cs0.33WO3, or cesium tungsten bronze, is mainly applied for preparing transparent heat-insulation coating. In this process, Cs0.33WO3 nanoparticles are prepared into heat insulation nanoparticle dispersions at first. And the prepared Cs0.33WO3 coating maintains high transmittance in visible light region, while absorbing, but not reflecting, much of near-infrared (NIR) light.

Nano Cs0.33WO3, or nano cesium tungsten bronze, is well-known as a near-infrared absorber because it has excellent near-infrared absorption property. It is reported that solar control performance of Cs0.33WO3 coating or film is the highest since Cs0.33WO3 nano particles absorb well around 800-1400 nm where solar intensity is high.

A new energy saving glass, which shields a large amount of near-infrared light yet transmit visible light, can be prepared with Cs0.33WO3 (cesium tungsten bronze) nanoparticles dispersed in resins. Such a glass using cesium tungsten bronze nano particles have advantages over conventional technologies in low solar energy gain, low cost and high stabilities, while keeping visible transmittance high.