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2639732 
Journal Article 
Effects of Annealing in Different Atmosphere on the Near-Infrared Shielding Properties of CsxWO3 Particles 
Xu, Q; Liu, J; Shi, Fei; Luo, J; Jiang, Y; Liu, G 
2013 
Yes 
Advanced Materials Research
ISSN: 1022-6680 
Advanced Materials Research 
712-715 
284-287 
WOS:000324222600056 
Using sodium tungstate and cesium carbonate as raw materials, cesium tungsten bronze (CsxWO3) powders were synthesized by low temperature hydrothermal reaction with citric acid as the reducing agent. Effects of annealing in different atmosphere on the near-infrared shielding properties of CsxWO3 were investigated. The microstructure of CsxWO3 powders was characterized by X-ray diffraction. The CsxWO3 films were prepared on glass using polyvinyl alcohol solution as film-forming agent, and the optical transmission properties of CsxWO3 films were investigated. The results indicate that the near-infrared shielding ability of samples after annealed at 200 degrees C in the air atmosphere did not deteriorate apparently, but the 400 degrees C-annealed samples in the air atmosphere showed apparent decrease of near-infrared shielding properties. Annealing in the carbon powder atmosphere had no apparent effects on the properties of CsxWO3 particles. As for the N-2 annealing, the 500 degrees C-annealed samples showed best improved near-infrared shielding as well as high transparency in the visible light region. 
CsxWO3; hydrothermal synthesis; annealing; atmosphere; near-infrared shielding