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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…

WO3 nanorod array film is an important electrochromic material. Some experts have prepared such an electrochromic film by replacing the conventional WO3 seed layer with a TiO2 seed layer that is matched with the FTO lattice. The prepared tungsten trioxide electrochromic film has a large light modulation range, high coloring efficiency, and significantly improved cycle stability. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html Why is the seed layer the focus of current research? This is because the dense seed layer not only…

WO3 electrochromic nano film, mainly hydrated tungsten trioxide nano-disc electrochromic film, can be prepared by hydrothermal method on the FTO conductive substrate. Some experts have discussed various influencing factors of the WO3 electrochromic film during the preparation process. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html Experts have found that the seed layer and urea play a key role in hydrothermal growth. After pre-preparing a seed layer on the surface of the FTO by a sol-gel method, a hydrothermal reaction is carried out…