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Electrochromic material is a novel smart material, and WO3 is the most studied electrochromic material currently. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The electrochromic material produces reversible light transmission and reflection changes by electrochemical action caused by an applied electric field, thereby obtaining dynamic optical switching characteristics. Such intelligent new material has the advantages of low working voltage, low energy consumption and memory ability so that it has wide application prospects in many fields. Among them, tungsten trioxide can dynamically adjust…

MoO3 doped tungsten oxide electrochromic film can be prepared by an electron beam evaporation method in an ultra-high vacuum electron beam coating machine. Specifically, the steps are as follows: The evaporation source was an analytically pure tungsten oxide powder doped with analytical grade MoO3 powder, and pressed into a small cylinder with a diameter of 8mm. The substrate was made of glass with an ITO conductive film deposited to a square resistance of about 60Ω. The degree of vacuum before…

Doped tungsten oxide can be used to prepare a thin film like tungsten oxide. So, what kind of film is prepared? A dingal film, more specifically, an electrochromic film. It is mainly applied to the smart windows. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html As you may have known, tungsten oxide is the most studied electrochromic material currently. Scientists have extensively studied the electrochromic optical properties of tungsten trioxide thin films, and their doping characteristics have also attracted their attention. This is…

Hydrated tungsten trioxide nanosheet film can be prepared by a seed assisted method. Experts tested the relationship between the peak current density and the number of cycles of the cathode and anode of the hydrated WO3 nanosheet film prepared by the urea-induced seed-assisted method with the best performance by chronoamperometry. The peak current density of the cathode and the anode was measured by applying a square wave voltage of -1.0V (in the colored state, 10s) and 1.0V (in the faded…

Hydrated tungsten trioxide nanosheet can be applied to prepare electrochromic film. Some experts have used the seed-assisted method to prepare hydrated WO3 film. From the graph below – the optical density (OD) variation with respect to the charge density for as-prepared WO30.33H2O film measured at 632.8nm at different potentials, wherein a is -2.5V, b is -3.0V, it is found that: More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The coloration efficiency of urea-induced hydrated WO3 nanosheet film at -2.5V and -3.0V was significantly…

Orthorhombic tungsten trioxide can be used to prepare electrochromic film. Experts prepare hydrated WO3 electrochromic films of orthogonal phase under the conditions of crystal seed or without crystal seed. And they found: More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html There are significant differences in the nanostructure and surface morphology of the orthorhombic hydrated tungsten trioxide film. Moreover, the transmittance of the two dingal films is also significantly different. It can be seen from the UV-vis transmittance spectrum of the two films shown…

Orthorhombic WO3?0.33H2O can be applied for the production of electrochromic film. Experts used urea as a structure directing agent to grow WO3 nanostructured films under hydrothermal conditions with and without crystal seed layer. The XRD patterns were observed and found: More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The diffraction peaks of the WO3 electrochromic films prepared as shown in the above figure are consistent with the diffraction peaks of the respective crystal faces of the standard card, JCPDSno. 54-1012. This indicates that…

Hydrated tungsten oxide, like tungsten oxide, can be applied for the preparation of electrochromic film. Experts say that the crystal water in the hydrated WO3 crystal lattice can provide a faster transmission path for ion transport, so it tends to exhibit superior electrochromic properties. And therefore it has become the focus of current research. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html Experts also said that if the prepared hydrated tungsten oxide has good crystallinity, it also has good consistency and stability. Although…

WO3 can be applied to FTO conductive glass in the form of a film. Specifically, the hydrothermal precursor fluid must be configured first: 5g of tungstic acid was dissolved in 60mL of hydrogen peroxide at 95°C, cooled to room temperature, and diluted to 200mL with deionized water to obtain a hydrothermal precursor liquid with a concentration of 0.1mol/L. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html Then, hydrothermal reaction was further carried out: 10.5mL of hydrothermal precursor liquid, 3.5mL of 3mol/L hydrochloric acid,…

Tungsten trioxide can be applied to the FTO conductive glass in the form of a seed crystal liquid. Specifically, it is necessary to prepare a tungsten trioxide seed crystal liquid first: A certain amount of hydrated sodium tungstate was dissolved in deionized water to prepare a 0.2mol/L solution. After the sodium tungstate was completely dissolved, about 15mL of a 3mol/L hydrochloric acid solution was added dropwise while stirring, and the sodium tungstate was converted into tungstic acid precipitate. Then, the…