Fe4 O5 F3

Fe₄O₅F₃ is an iron oxide fluoride compound that functions as a semiconductor material, combining iron oxide phases with fluorine incorporation to modify electronic and ionic transport properties. This compound remains largely in the research and development phase, with potential applications in energy storage, catalysis, and solid-state ionics where the fluorine dopant can enhance ion mobility or alter band structure compared to undoped iron oxides. The material represents an experimental approach to tuning iron oxide semiconductors for next-generation electrochemical and electronic devices.