
Tungsten trioxide nanoparticles may be used to prepare a smart coating, or a photochromic coating – a new environmentally friendly heat-insulation glass coating. So, why can tungsten trioxide be used to produce transparent thermal insulation coating? Or what is the principle that the tungsten trioxide thermal insulation coating can exhibit high transparency and high heat insulation performance? More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html That is because tungsten trioxide nanopowder is a semiconductor material, whose forbidden band width is 2.6-2.8eV, and therefore,…