KNb3Se2O12

KNb₃Se₂O₁₂ is a mixed-metal oxide semiconductor belonging to the niobium-based compound family, combining potassium, niobium, selenium, and oxygen in a layered crystal structure. This is a research-phase material studied for potential optoelectronic and photocatalytic applications, particularly in visible-light-driven photocatalysis and solid-state electronic devices where the selenium-oxygen framework and niobium oxidation states enable tunable band gaps. Interest in this compound stems from the broader class of layered niobate semiconductors, which offer alternatives to more commonly used oxides (TiO₂, WO₃) for environmental remediation and energy conversion, though industrial adoption remains limited to specialized research settings.