
Cs doped tungsten oxide nanoparticles, or CsxWO3 nanoparticles, are often used to prepare near infrared shielding material such as heat insulating film and heat insulating coating. And the prepared transparent near-infrared shielding materials are mostly used for heat insulation of buildings and vehicles. The reason why these materials can play a role in thermal insulation is that CsxWO3 nanoparticles have excellent near-infrared absorption properties. But how to test the light absorption properties of Cs doped tungsten oxide nanoparticles and CsxWO3…