Insights into Nd^III to Yb^III Energy Transfer and Its Implications in Luminescence Thermometry.

ABSTRACT: This work challenges the conventional approach of using Nd^III 4F_3/2 lifetime changes for evaluating the experimental Nd^III → Yb^III 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 Nd^III [²H_11/2 → ⁴I_15/2] → Yb^III [²F_7/2 → ²F_5/2] pathway, previously overlooked, dominates energy transfer due to superior energy resonance and J-level selection rule compatibility. This finding upends the conventional focus on the Nd^III [⁴F_3/2 → ⁴I_11/2] → Yb

SUBMITTER: Oggianu M 

PROVIDER: S-EPMC11008107 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature