YbCe2CuS5

YbCe2CuS5 is a mixed-metal sulfide compound containing ytterbium, cerium, and copper—a rare-earth chalcogenide belonging to the family of layered sulfide semiconductors. This is primarily a research material rather than an established commercial product, investigated for its electronic structure and potential in next-generation photovoltaic or thermoelectric applications where rare-earth doping modulates band structure and carrier dynamics. The ytterbium–cerium combination exploits the diverse oxidation states and 4f-electron configurations of lanthanides to engineer semiconducting properties not readily achievable in simpler binary sulfides.