BiSeO3F

BiSeO₃F is a bismuth-based mixed-anion semiconductor compound combining bismuth, selenium, oxygen, and fluorine in its crystal structure. This is a research-phase material primarily investigated for nonlinear optical and photonic applications, where the combination of heavy bismuth and fluorine-containing frameworks may enable useful optical response or ferroelectric behavior. BiSeO₃F represents an emerging class of multifunctional oxyfluoride semiconductors with potential relevance to optoelectronics and solid-state photonics, though it remains largely in the academic exploration stage rather than established industrial production.