Abstract
Materials Science Dynamic windows, whose transmission properties can be tuned using heat or electric fields, can help lower heating and cooling costs in a building. Vanadium(IV) oxide has long been studied as a coating material, but on its own has a high modulation temperature and poor visible light transmission and is subject to chemical attack. Powell et al. examined layered films made from VO3, SiO2, and TiO2. The SiO2 adds a barrier layer to the vanadium, stabilizing it from attack and diffusion of Ti, whereas the TiO2 adds self-cleaning properties to the glass. The combination also increased the visible light transmission by 30%. Chem. Mater. 10.1021/acs.chemmater.5b04419 (2016).
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