Ni Doped Tungsten Oxide

Ni doped tungsten oxide can be prepared by adopting magnetron sputtering method, and the obtained powder can be used to prepare tungsten trioxide film. Some experts have prepared Ni-doped WO3 by magnetron sputtering. The results show that:

After doping with Ni, the visible light transmittance of tungsten trioxide powder is lowered and the coloring performance is improved. The effect is more obvious at low concentration doping, and the effect is lower at high concentration doping. The optimum Ni doping amount is about 7.8%.

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Experts say that Ni doping can appropriately reduce the polarization voltage of tungsten trioxide and improve the stability and coloring properties of tungsten trioxide films. Ni generally enters the WO3 crystal lattice in the form of impurity atoms, which has a certain solid solubility in WO3 to form a replacement solid solution, thereby changing the lattice structure of WO3 and its properties.

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