Nano Cs0.32WO3 is known as a near-infrared absorber as it can absorb near-infrared light. In other words, Cs0.32WO3 nano particles can shield heat radiation (near-infrared light) in the sunlight. So, Cs0.32WO3 nano powder is often applied to building glass or automotive glass.
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With the population of near-infrared absorber, Cs0.32WO3 is also attracting more and more attention. For example, the experts are discussing the factors that affect the near infrared (NIR) absorption ability of Cs0.32WO3 powders. They found that the formation of Cs032WO3 rod-like structure can improve NIR absorbance. The localized surface plasmon resonance (LSPR) is closely related to morphology of nanoparticles and free carrier concentration. The nano rod-like morphology may also be helpful for NIR shielding ability due to LSPR is generated along both the length of the nanorod and the width of the nanorod. It suggests that a greater aspect ratio leads to a higher light absorption. So, it can be concluded that the NIR absorption ability of Cs0.32WO3 powders strongly relates to the high crystallinity and rod-like structure.
