Tunable thermochromic properties of V2O5 coatings

Thermochromic V2O5 coatings obtained by oxidation in air at different temperatures, exhibit a variety of colours at room temperature and upon heating. Oxygen vacancy is directly linked to the appearance of such a wide gamut of colours. Therefore tunable thermochromic V2O5 coatings are obtained by controlled oxidative annealing. The illustration displays cropped photographic image of the actual coated substrates.