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Transparent mixed phase (1 - x)V2O5-xTiO2 (x=0,01,0.2,0.3,0.4) thin films were prepared on indium tin oxide (ITO) coated glass via sol-gel process. The films were characterized by cyclic voltammetry, optical spectroscopy, scanning electron microscopy, IR and X-ray diffractometer. Electrochemical lithium insertion/extraction showed that the porous structure of sol-gel (1 - x)V2O5-xTiO2 thin films exhibited good recharge ability of Li+/e- insertion/extraction process. For a 220 nm thick (1 - x)V2O5-xTiO2 film with 90% V2O5, the capacity of charge exchange reached 9 mC/cm2. In both Li+ intercalated and free states, the films were highly transparent to visible light. Such films have potential applications in counter electrodes for electrochromic smart windows and other electrochemical devices.
Transparent mixed phase (1 - x) V2O5-xTiO2 (x = 0,01,0.2,0.3,0.4) thin films were prepared on indium tin oxide (ITO) coated glass by sol- gel process. The films were characterized by cyclic voltammetry Electrochemical lithium insertion / extraction showed that the porous structure of sol-gel (1 - x) V2O5-xTiO2 thin films exhibit good recharge ability of Li + / e- insertion / For both 220 nm thick (1 - x) V2O5 - xTiO2 film with 90% V2O5, the capacity of charge exchange reached 9 mC / cm2. In both Li + intercalated and free states, the films were highly transparent to visible light. Such films have potential applications in counter electrodes for electrochromic smart windows and other electrochemical devices.