Nano yellow tungsten oxide may be applied for producing thermal insulating glass so that this type of glass can have high thermal insulation performance. In other words, it can effectively shield ultraviolet rays. It is essential for office work.
Certainly, at this time, you may want to find out why glass coated with tungsten trioxide films can play the role of thermal insulation. It should start about the photochromic performance of tungsten trioxide. When light with energy greater than the band gap of WO3 is irradiated onto the sample, the electron-hole pair is then generated. The photo-generated electrons enter the conduction band of WO3 and combine with the adjacent W6+ to form W5+. At the same time, photogenerated holes can react with water molecules adsorbed on the surface of the sample, weakening the H-O bond of the water molecule, causing decomposition of water molecules and generating protons. When the generated protons enter WO3, blue HxWO3 tungsten bronze is formed.
Summer is here! Is it your glass ready for sun protection?
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