Electrochromic properties of Mo-doped V2O5 thin films deposited by spray pyrolysis process

In this work, we have studied the Mo effect on V 2 O 5 thin films, the samples were deposited by spray pyrolysis technique on heated glass substrates at 500 °C. The dopant amount was varied at different concentration, 2%, 4% and 6%. Different techniques were carried out, in order to studied the Mo effect on V 2 O 5 , such as XRD, Raman, SEM, AFM and electrochemical analysis. From the obtained results, all the samples exhibited orthorhombic structure with (001) predominant orientation. The optical properties of Mo concentration effect were studied in their colored and discolored states. These electrochemical studies were performed in LiClO 4 electrolyte with 0.5 mol/L of C 4 H 6 O 3 . The transmittance value of the samples decreased from 76% to 10% at 690 nm, when the samples have changed color, from colored state to discolored state respectively.