Tailoring Energy Transfer in Mixed Eu/Tb Metal-Organic Frameworks for Ratiometric Temperature Sensing.

ABSTRACT: Eu/Tb metal-organic frameworks (Eu/Tb-MOFs), exhibiting Eu³⁺ and Tb³⁺ emissions, stand out as some of the most fascinating luminescent thermometers. As the relative thermal sensitivity model is limited to its lack of precision for fitting ratio of Eu³⁺ and Tb³⁺ emissions, accurately predicting the sensing performance of Eu/Tb-MOFs remains a significant challenge. Herein, we report a series of luminescent Eu/Tb-MOF thermometers, Eu_xTb_1-xL, with excellent thermal sensitivity around physiological levels, achieved through the tuning energy transfer from ligands to Eu³⁺ and Tb³⁺ and between the Ln ions. It was found that the singlet lowest-energy excited state (S₁) of the ligand and the hig

SUBMITTER: Tang H 

PROVIDER: S-EPMC11357012 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature