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Thermochromism refers to the phenomenon where a material undergoes color changes under temperature changes. This change is usually caused by changes in the electronic or molecular structure of the material. Its application principle mainly involves t...
China factory W-VO2 tungsten doped vandium oxide powder, phase change temperature was reduced from 68℃ to 20℃, can be applied for smart window materials, switching devices, temperature sensors, etc.
product origin:
Xuzhou, Jiangsu, Chinashipping port:
Shanghai / Guangzhoucolor:
Black powderlead time:
depends onpayment:
100% advance payment2% W-VO2 powder phase change temperature 20℃ China factory price
Product name
Tungsten doped vandium oxide
MF
W-VO2
Tungten content
2%
Particle size
5-6um
Purity
99.9%
Morphology
Irregular
Appearance
Black powder
Phase change temperature
20℃
The VO2 film undergoes a reversible phase transition from a semiconductor state to a metallic state at 68°C. This thermally induced phase change characteristic allows the VO2 film to be widely used in smart window materials, switching devices and other fields, but the higher phase transition temperature (68°C ), still limits its practical application.
Doping tungsten can significantly reduce the phase change temperature of VO2, so that the temperature at which it changes from a high-temperature phase (metallic phase) to a low-temperature phase (insulating phase) reaches room temperature or close to room temperature. The adjustment of this phase change temperature is tungsten-doped vanadium dioxide. Applications near room temperature are possible.
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