Electrochemical formation of tin oxide-hydroxide composite films for the application to electrochromic devices

Solid state tungsten oxide hydrate/tin oxide hydrate electrochromic device prepared by electrochemical reactions

“…[10][11][12] Direct anodic and cathodic depositions have been proposed by our group, and the ability has been approved by preparations of ZnO, Cu 2 O, and CuO semiconductors. [10][11][12] The tungsten oxide hydrate (WO 3 (H 2 O) 0.33 ) has been prepared by anodic deposition, 13 and it is expected that the preparation of the compounds of SnO 2 and Sn(OH) 4 , which is abbreviated as Sn(O,OH), by the anodic deposition from the electrochemical characteristic. 14 In this paper, we show the solid state tungsten oxide hydrate/tin oxide hydrate electrochromic device prepared by anodic deposition in aqueous solutions and the change in the color appearance by applying voltage through an Au electrode.…”

“…The FWHM value of X-ray diffraction peaks relate to the grain size and inhomogenous strain, and the broadened (110) SnO 2 peak suggested the small grain size and the presence of inhomogenous strain originated from incorporation of OH into SnO 2 . The deposition reaction of Sn(O,OH) layer is speculated as follows: 13 …”