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The discoloration process of tungsten oxide for preparing smart heat insulation film is more complicated, and the mechanism is still controversial. Currently, the widely accepted and applied discoloration model is the dual injection model, namely the Fanghnan model. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The Fanghnan model states that when ions are injected, the tungsten trioxide electrochromic film exhibits a blue color, and at this time, the ion injection is equivalent to the doping of the semiconductor. When the ions are…

Yellow tungsten oxide, or tungsten trioxide, is a cathode discoloration material. The color contrast of tungsten trioxide is still relatively low compared to a composite electrode complementary electrochromic device assembled using WO3 and nickel oxide. Wherein nickel oxide is the anode coloring material preferred by researchers, which includes nickel oxide of ideal ratio (light green) and nickel oxide of non-ideal ratio (gray black). More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The NiO of non-ideal ratio is very chemically active. And it can…

Tungsten oxide for producing composite electrode complementary electrochromic device is a typical cathode coloring material. However, in practical applications, the coloring contrast of tungsten oxide is still relatively low. How to solve this problem? In this regard, experts say that if an anode coloring material and a cathode coloring material are assembled into a complementary electrochromic device, the coloring contrast can be greatly improved. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html So, what kind of anode coloring material should I choose? The…

WO3 for preparing large area electrochromic device is in an amorphous state (a-WO3) at 300 °C and in a crystalline state (c-WO3) at 400 °C and 500 °C. Experts say that the amorphous tungsten trioxide film has higher coloring efficiency and shorter response time than the crystalline tungsten trioxide film. It means that a-WO3 film has better electrochromic performance than c-WO3 film. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html Experts also introduced that, in general, tungsten oxide produced at lower temperatures is…

Tungsten trioxide is assembled in a large area electrochromic device in the form of an electrochromic thin film to serve as a cathode coloring material. Experts said that for large-area electrochromic devices assembled with WO3 electrochromic film, in practical use, the cycle stability should also be taken into account in addition to factors such as light modulation range, coloring efficiency and response time. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html Experts went on to say that the cycle stability of electrochromic devices…

Tungsten oxide film may be applied for preparing an energy saving film. According to experts, the electrochromic phenomenon of such a tungsten trioxide electrochromic film for thermal insulating and energy-saving glass, that is, the conversion phenomenon between the colored state and the bleached state, can be explained by a double injection model. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The experts introduced that, from the double injection model, it can be known that when Li+ is injected on the surface and inside…

Mo-doping tungsten trioxide electrochromic film can be prepared by spray pyrolysis. For example, some experts have prepared a Mo-doped WO3 electrochromic thin film with uniform morphology by spray pyrolysis. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The results show that when a negative pressure -3V is applied, the electrochromic device assembled from tungsten trioxide – molybdenum oxide composite electrochromic thin film has a light modulation range of 32.08% at a wavelength of 632.8 nm, and the response time can be controlled within…

Tungsten oxide – nickel oxide composite electrochromic film can be prepared by a screen printing method. For example, some experts have prepared a Mo doped WO3 electrochromic thin film by screen printing, and found that: More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html After the heat treatment at 500 °C, the transmittance of the tungsten trioxide electrochromic thin film obtained at one printing was as high as 78%. Moreover, the WO3 electrochromic film has a high light modulation range after heat treatment. But…

MoO3 doping tungsten oxide may be applied for preparing electrochromic film. And such a smart film can be prepared by a direct current magnetron sputtering method, a spray coating method, and a combination of DC magnetron sputtering method and spray coating method. Wherein, some experts have studied the preparation of WO3 electrochromic thin films by these three methods and found that: More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html 1.0 The obtained tungsten oxide – molybdenum oxide composite electrochromic film can be prepared…

What effect does the tungsten oxide electrochromic film for producing thermal insulating window glass have on the cycle stability of electrochromic devices? Through the XPS analysis of tungsten trioxide electrochromic thin film, the experts reached the following conclusions: More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The WO3 electrochromic thin film, the electrochromic layer of the electrochromic device, is one of the factors that generate bubbles. And it also is one of the factors affecting the cycle life of the device: intrinsic degradation.…