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Hydrated WO3 nanosheet can be prepared by a simple, green solution process of high quality, and the prepared WO3 can be used to prepare flexible electrochromic electrode, i.e., electrochromic film, by low pressure electrodeposition method. And the obtained WO3 electrochromic film has good thermal insulating performance for applying in building window glass or car window glass. Some experts have assembled the prepared film into a device of a half-cell structure. The schematic illustration for the electrochromic device preparation process is…

WO3 has good electrochromic property, that is, good heat insulation performance, so it is often used for the preparation of ITO/PET flexible electrochromic electrode, mainly by electrodeposition method. Since electrodeposition technology can be performed on any conductive substrate, experts have used the same electrodeposition technique to deposit hydrated tungsten trioxide nanosheets onto a copper foil, an aluminum foil, and an ITO/PET. The photograph of the flexible WO3?2H2O electrode prepared by electrodeposition method is shown as below. More details, please visit:…

Hydrated tungsten trioxide can be applied to smart window with good heat insulating property. So, smart glass using nano particle size tungsten trioxide as cathode electrochromic material has a very wide application prospect in the field of smart home, which can be seen from the photos in the figure below. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html In the figure, (a) and (b) are photographs of the electrochromic device at bleached state and colored state, respectively, and (c) is the taken through…

3D quasi-vertical WO3?0.33H2O film can be prepared by the following steps: preparing a hydrated WO3 nanosheet sol; electrodepositing. First, prepare a hydrated WO3 nanosheet sol: 5g of tungstic acid was dissolved in 60mL of hydrogen peroxide at 95°C, cooled to room temperature, and diluted to 200mL with an equal volume of ethylene glycol and deionized water to obtain a stable peroxo-tungstic acid solution (PTA) of a concentration of 0.1mol/L. The obtained PTA solution was then mixed in equal volume with…

Porous WO3 thin film can be prepared by a new preparation method. Some experts have deposited tungsten trioxide ultrafine nanowires on the surface of ITO conductive glass, and found that films prepared with different solvents have different optical properties. This method of electrodepositing crystalline tungsten trioxide tends to directly deposit the nanopowder in a solvent such as methanol, deionized water or n-hexane. Therefore, the deposition voltage is large, and the deposited film often needs to be annealed. More details, please…

Porous tungsten trioxide electrochromic film can be prepared on the surface of ITO conductive glass by electrophoretic deposition method. And the obtained heat insulating film is a porous WO3 film crossing with nanorods. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html Experts said that in the current research hydrothermal method is also used to prepare hydrated tungsten trioxide thin film, focusing on shortening the hydrothermal reaction time, reducing the hydrothermal reaction temperature, and simplifying the hydrothermal step. And the WO3 electrochromic films with…

Polycrystalline WO3 film can be prepared by electrophoretic deposition method. And the obtained thin film exhibited better cycle stability. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The electrophoretic deposition method, that is, the electrodeposition method, is a simple film forming technique for preparing a large-area film. In this process, the film is formed on any conductive substrate without being affected by the shape of the substrate. At present, the researchers commonly adopt electrodeposition methods by using tungsten powder as the tungsten source…

Nest-like WO3?0.33H2O film can be prepared on a FTO conductive glass substrate by self-seeding hydrothermal method. Such hydrothermal method eliminates the blocking of electrons by the dense seed layer and improves the electron transport speed and electron transport efficiency. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html Therefore, the hydrate tungsten trioxide film prepared by self-seeding hydrothermal method exhibits a faster response speed, a larger light modulation range, and a higher coloring efficiency than the WO3 thin film prepared by the seed-assisted hydrothermal…

Nest-like hydrated tungsten trioxide nanosheet film can be directly grown on the surface of FTO conductive glass (without seed layer) by using ethylene glycol with a large amount of hydroxyl groups as a solvent. So what is the electrochromic property of the prepared hydrated tungsten trioxide film? The UV-Vis transmittance curve of the nest-like hydrated tungsten trioxide nanosheet film prepared by self-seeding hydrothermal method and the corresponding digital photos are shown as below. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html As can…

Nest-like hydrated tungsten trioxide film can be prepared by a self-seeding hydrothermal growth method. The hydrated WO3 film can also be prepared by the seed-assisted hydrothermal method, but the obtained film is not uniform enough, and the electron transport speed and transmission efficiency are not ideal. In this regard, experts say that the simplest method is to eliminate the seed layer in the hydrothermal process, thereby solving the problem of film uniformity and improving the electron transport speed and transmission…