Tungsten Bronze Complex Applied for Near Infrared Shielding Material

Tungsten bronze complex with the formula of M1xM2yWOz is a near infrared shielding material that developed for energy efficiency and carbon dioxide reduction. Wherein, M1 is Li, or Na; and, M2 is K, Rb, or Cs. The experts provide a method for fabricating such a near infrared shielding material of tungsten bronze complex, wherein the method includes:

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Providing a tungsten-containing precursor; providing a first alkali metal compound and a second alkali metal compound; mixing the first alkali metal compound, the second alkali metal compound, and the tungsten-containing precursor to form a mixture; and, subjecting the mixture to a thermal treatment, obtaining the aforementioned near infrared shielding material. The thermal treatment includes a first heating step and a second heating step.

The experts also introduced the thermal insulation structure, including: a first substrate and a first functional layer formed on the substrate. In particular, the first functional layer includes the aforementioned near infrared shielding material.

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