Structural and optical properties of nanostructural V2O5 thin films deposited by spray pyrolysis technique: Effect of the substrate temperature

► Spray pyrolysis technique was used. ► We have synthesized highly oriented nanocrystalline V2O5 films. ► By altering the substrate temperature the size of crystallites can be well controlled. ► The highest transmittance was achieved when films were deposited at 550 °C. ► Scanning electron microscopy showed that nanorods were formed when depositing at 500 °C.