VO₂ thin films deposited on ZnO buffer layer

Vanadium oxide thin films have been deposited on glass and ZnO-coated glass substrates by reactive RF-magnetron sputtering deposition at different substrate temperature. The introduction of ZnO buffer layer could increase the transmittance. The buffer layer ZnO could lead to the increase of the crystallinity quality of VO₂ films and substrate temperature could be decreased to 100°C for the obtaining of polycrystalline VO₂ structure. The structure of VO₂/ZnO/glass is considered to be potentially applicable to "smart windows" of high total energy efficiency in architectures or automobiles.