WO3 Applied for All Solid-state Electrochromic Window

WO3 is well-known as an electrochromic material for preparing an all solid-state electrochromic window. And such a window is known as a smart window with function of adjusting room temperature. Some experts have studied the all solid-state smart window of electrodeposited WO3 and TiO2 particulate film with PTREGD gel electrolyte.

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Firstly, the experts fabricated the all solid-state smart window of electrodeposited WO3 and TiO2 particulate film with polytrithylene glycol dimetrocrylate (PTREGD) gel electrolyte with high conductivity (1 mS/cm) at room temperature. The smart window has been found to be excellent for electrochromism and memory characteristics. Using X-ray photoelectron spectroscopy (XPS), the W 4f core level of WO3 film as a function of the injected charge has been investigated. W 4f peaks become broader after coloration. Composite structures of W 4f peaks have been attributed to the existence of the different final states, screened by different numbers of W 5d electrons.

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