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Article Dans Une Revue Journal of Materials Chemistry C Année : 2023

Carboxylate BODIPY integrated in MOF-5: easy preparation and solid-state luminescence

Alexis Tran
Marion Leroux
Damien Boyer
Federico Cisnetti

Résumé

Boron-dipyrromethenes (BODIPYs) are remarkable organic fluorophores widely used in solution. However, like many other organic phosphors, BODIPYs suffer from aggregation-caused quenching inhibiting the solid-state luminescence, which limits their potential for various applications. Metal–organic frameworks (MOFs), a well-known class of hybrid materials consisting of organic ligands bridging metal clusters, are considered herein as solid-state templates allowing restoration of the luminescence of BODIPY in the solid state. By a simple room-temperature synthetic procedure, we were able to integrate carboxylate functionalized BODIPYs into a MOF-5 structure (composed of {Zn4O}6+ clusters and terephthalate ligands). This allowed limiting solid-state aggregation phenomena. The structure and the morphology of different MOF@BODIPY samples have been characterized by XRD and/or microscopy. The luminescence properties have been characterized in the solid state and compared to BODIPY in solution. The MOF@BODIPY samples offer high external photoluminescence quantum yields of up to 27% in the solid state. Emission and excitation spectra were similar to those of BODIPY in solution. The amount of BODIPY integrated into the structures has been confirmed by UV-vis spectroscopy and an optimal loading has been determined. The thermo-stability and UV ageing have been preliminarily tested.

Domaines

Chimie
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Dates et versions

hal-04442112 , version 1 (06-02-2024)

Identifiants

Citer

Alexis Tran, Marion Leroux, Clément Michelin, François Réveret, Damien Boyer, et al.. Carboxylate BODIPY integrated in MOF-5: easy preparation and solid-state luminescence. Journal of Materials Chemistry C, 2023, 11 (42), pp.14896-14905. ⟨10.1039/D3TC02581K⟩. ⟨hal-04442112⟩
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