Fe2 Se4

Fe₂Se₄ is a layered iron selenide semiconductor compound belonging to the transition metal chalcogenide family, characterized by iron and selenium in a defined stoichiometric ratio. This material is primarily of research interest for thermoelectric and optoelectronic applications, with potential in energy conversion devices and photovoltaic systems where its semiconducting properties and layered crystal structure can be exploited. While not yet widely adopted in mainstream engineering applications, iron selenides are being investigated as alternatives to conventional semiconductors due to their tunable band gaps, thermal properties, and potential for use in high-temperature or specialized environments where traditional materials may be limited.