Mariangela Oggianu, Valentina Mameli, Miguel A Hernández-Rodríguez, Noemi Monni, Manuel Souto, Carlos D S Brites, Carla Cannas, Fabio Manna, Francesco Quochi, Enzo Cadoni, Norberto Masciocchi, Albano N Carneiro Neto, Luís D Carlos, Maria Laura Mercuri
This work challenges the conventional approach of using NdIII 4 F3/2 lifetime changes for evaluating the experimental NdIII → YbIII energy transfer rate and efficiency. Using near-infrared (NIR) emitting Nd:Yb mixed-metal coordination polymers (CPs), synthesized via solvent-free thermal grinding, we demonstrate that the NdIII [2 H11/2 → 4 I15/2 ] → YbIII [2 F7/2 → 2 F5/2 ] pathway, previously overlooked, dominates energy transfer due to superior energy resonance and J -level selection rule compatibility...
April 9, 2024: Chemistry of Materials: a Publication of the American Chemical Society