Low-orbit-environment protective coating for all-solid-state electrochromic surface heat radiation control devices

We suggest use of low-orbit space ambient protective surface coatings for our recently reported all-solid-state electrochromic surface-heat emissivity modulation device in order to (i) to improve the infrared emissivity modulation upon use of the protective layerʹs antireflection effect; and (ii) protect the layer stack within hazardous space environments. We study the optical properties of ZnSe as potential coating material before and after electron cyclotron resonance oxygen plasma treatment, which is a simulation of the low earth orbital environment. The influence on the device performance is evaluated.