Tungsten Oxide Thin Film Switch Response Time
The coloring and fading time is an index of tungsten oxide thin film discoloration property. Switch response time means the coloring and fading time of thin film under adding voltage.
When the input voltage is ±1V, test reaction time of electrochromic thin film under coloring state and fading state, it turns out that the reaction time of nano thin film is shorter.
Under the role of forward voltage, it takes five seconds for coloring, the shortest would take 4 seconds. Within 10 seconds, the color of the film will be completely stable. Under reverse voltage, the film will completely fade in 3-5 seconds. Thus, nano electrochromic film has a good switching response time.
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Tungsten oxide (W2O3) is a compound of tungsten and oxygen (See Uncle Tungsten by Oliver Sacks).
Tungsten Trioxide, also known as tungsten oxide or tungstic anhydride, WO3, is a chemical compound containing oxygen and the transition metal tungsten.
Tungsten carbide powder is the main raw material for the production of tungsten carbide, chemical formula WC.
Tungsten belongs to the rare element in the earth's crust containing only 0.007% of China's tungsten reserves of about 55% of the world's total reserves in the first place.