Abstract
The vanadium pentoxide (V2O5)/graphene nanocomposite films have been synthesized by direct intercalation method using V2O5 sol and graphene. The structure of the films was investigated with X-Ray Diffraction (XRD). The electrochemical properties of the nanocomposite films were studied by cyclic voltammetry and chronoamperometry with the standard three-electrode configuration. The optical properties were characterized by UV–Visible spectrophotometer. The intercalation of graphene improves the stability and reversibility of the V2O5 xerogel films. The response rate of the V2O5/graphene nanocomposite films is enhanced. The optical modulatory range of the V2O5/graphene nanocomposite films is 1.5 times larger than that of V2O5 xerogel films. These results demonstrate that the nanocomposite films can be used potentially in fast switching electrochromic devices.
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