Cesium tungstate is mainly applied for manufacturing transparent heat insulating glass as its nanoparticles (Cs0.33WO3 nanoparticles) have near-infrared (NIR) shielding ability and transparent heat insulating performance. Well, do you know F-doped Cs0.33WO3-xFx particles? A material that has improved near infrared shielding ability than undoped Cs0.33WO3 particles.
More details, please visit:
http://cesium-tungsten-bronze.com/index.html
Some experts successfully synthesized the F-doped Cs0.33WO3-xFx particles by hydrothermal method with hydrofluoric acid as fluorine source. And a new kind of heat-insulating films were prepared from dispersion of Cs0.33WO3-xFx nanoparticles in polyvinyl alcohol (PVA) aqueous solution.
In this process, the experts investigated the effects of F doping on the crystal structure and morphology of Cs0.33WO3-xFx particles as well as the NIR shielding ability and heat insulation properties of Cs0.33WO3-xFx films. And they found that HF acid addition could promote the formation of rod-like Cs0.33WO3-xFx particles during hydrothermal synthesis and increase the yield of Cs0.33WO3-xFx powders. Moreover, the as-prepared films from dispersion solution of Cs0.33WO3-xFx particles exhibited higher NIR shielding ability and heat insulating properties than that of the undoped Cs0.33WO3 film. Particularly, the as-prepared Cs0.33WO3-xFx sample with F/W (molar ratio) =0.45 showed best NIR shielding ability and transparent heat insulating performance.
