Metal-Site Chemistry Dominates Carrier Recombination in Layered Halide Perovskites: Insights from Excited-State Dynamics and Interpretable Machine Learning
Layered halide perovskites (LHPs) offer a powerful platform to precisely engineer excited-state carrier dynamics and optoelectronic performance via compositional tuning of B-site metals. Here, we contrast prototypical lead-based (BA)2PbBr4 with its double-perovskite analogue (BA)4AgBiBr8 to isolate the role of B-site...