ION CONDUCTIVE MULTILAYER STRUCTURE

摘要

A novel ion conductive material may be formed as a thin-film multilayered structure. The thin-film multilayered structure may be formed using multiple ion conductive sublayers of an electronic insulator and an ionic conductor. A nanometer-range thickness of the electronic insulator may be selected to provide desirable ion conductive properties that may be different from bulk material properties due to quantum size effects. The thin-film multilayered structure may behave in aggregate as an electronic insulator while behaving as an ion conductor at relatively low temperatures. The thin-film multilayered structure may be used as an electrolyte in a solid-oxide fuel cell (SOFC) for conduction of oxygen ions at relatively low temperatures, for example, less than about 600°C.