Violet Tungsten Oxide Nanoparticles Applied for Transparent Heat Insulation Glass

Violet tungsten oxide nanoparticles may be applied for producing transparent heat insulation glass. Then, what is violet tungsten oxide nanopowder? Nano violet tungsten oxide is a semiconductor material, which is capable of absorbing light of a specific wavelength. After performing a certain reduction treatment, the violet tungsten oxide can accumulate a large amount of free electrons on its surface, thereby making it have the characteristics of plasmon resonance absorption of near-infrared light to play an effective role in shielding heat radiation.

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Violet tungsten oxide is an oxide of tungsten, which can be expressed as (WO3-X). And the oxygen index can be between 2.67 and 2.72. After reduction treatment, the absorption of the tungsten oxide nanoparticles is remarkably enhanced, particularly in the 1400-1600nm and 1900-2200nm bands. It is believed that the absorption of these two infrared bands is caused by the plasmon resonance absorption of a large amount of free electrons introduced after reduction. At the same time, as X increases, the absorption increases.

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