Decoupling the Roles of Ligand-Field and Charge-Transfer Excitations on the Photocarrier Yield in Transition-Metal Oxides: Insights from MTiO3 (M = Ni, Co, Mn)
Open d-shell transition-metal oxides are widely studied as photoactive materials for solar-energy conversion but typically exhibit low yields of mobile photocarriers. This inefficiency has been linked to ligand-field (LF) states that induce ultrafast relaxation, although their impact across open d-shell oxides remain...