Chemical formula: WO₂. ₉, is a non-integer ratio compound composed of tungsten (W) and oxygen (O), the tungsten valence is not an integer valence in this compound, and the average valence is slightly lower than + 6.
Crystal structure: WO₂. ₉ has a complex crystal structure. It has similarities with the crystal structure of WO₃, which belongs to the distorted structure of the cubic crystal system.
Appearance: WO₂. ₉ powder usually appears dark blue or blue-black.
Colour mechanism: It presents a dark blue or blue-black appearance, which is different from the colour of other tungsten oxides.
Density: WO₂. ₉ has a high density, generally around 7 – 8 g/cm³.
Photodetector: using Tungsten Oxide in the optical band of light absorption properties and special electrical properties, it can be used to prepare photodetectors.
Light emitting diode (LED) and laser diode (LD): due to Tungsten Oxide is luminescent properties, there is potential value in the research and application of LEDs and LDs. By optimising the material structure and preparation process, it is possible to use WO₂. ₉ as a luminescent layer or auxiliary material in LEDs and LDs to improve the luminescence efficiency and light colour quality.
Photocatalytic reaction : Tungsten Oxide has potential photocatalytic performance, based on its light absorption properties and special electronic structure, it has application potential in photocatalytic degradation of organic pollutants, photocatalytic decomposition of water to produce hydrogen and other reactions.
VI HALBLEITERMATERIAL GmbH (VIMATERIAL) employs a stringent quality assurance system to ensure the reliability of our product quality. Strict quality control is implemented throughout the entire production chain, and for defective products, we strictly enforce the principle of rework and redo. Each batch is released only after passing detailed specification tests.
Every batch of our materials is independently tested, and, if necessary, we send samples to certified companies for testing. We provide these documents and analysis certificates with the shipment to certify that our products meet the required standards.
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