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.
