Sol-gel coatings for electrochromic devices

Abstract

Electrochromic devices have potential applications in architectural and automotive fields to regulate the transmission and reflection of the radiant energy. Preliminary characteristics of an all sol-gel window with the configuration glassITOWO3TiO2TiO2-CeO2ITOglass is presented, and compared with another window where WO3 was deposited by evaporation. We also present preliminary data of a sol-gel Nb2O5 electrochromic layer as well as a thorough evaluation of the properties of a sol-gel TiO2-CeO2 ion storage coating where electrochemical properties are studied as a function of various parameters (thickness, heat treatment, etc.).