Bi2 Se2

Bi₂Se₂ is a binary bismuth selenide compound belonging to the layered chalcogenide semiconductor family, characterized by a quasi-2D crystal structure similar to other bismuth chalcogenides. This material is primarily investigated in topological electronics research and thermoelectric applications, where its strong spin-orbit coupling and potential topological surface states make it attractive for next-generation devices requiring low-loss electron transport or efficient thermal-to-electrical energy conversion. While not yet widely deployed in mainstream commercial products, Bi₂Se₂ represents an emerging alternative to better-studied compounds like Bi₂Se₃, with particular interest in contexts where modified band structure or enhanced stability is needed.