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Article Dans Une Revue Chemical Communications Année : 2021

Upconversion in molecular hetero-nonanuclear lanthanide complexes in solution

Résumé

Here we show that nonanuclear lanthanide complexes respresent a new class of solution state upconversion (UC) molecules. For a composition of one Tb per eight Yb the nonanuclear complexes display a very efficient UC phenomenon with Tb luminescence in the visible region upon 980 nm NIR excitation of Yb. An unprecedented value of 1.0 × 10−7 was obtained for the UC efficiency at only 2.86 W cm−2, demonstrating these new molecular complexes to be up to 26 times more efficient than the best current molecular systems, the UC being observed down to a concentration of 10 nM.
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Dates et versions

hal-03047118 , version 1 (06-05-2021)

Identifiants

Citer

Richard C. Knighton, Lohona K. Soro, Alexandre Lecointre, Guillaume Pilet, Alexandra Fateeva, et al.. Upconversion in molecular hetero-nonanuclear lanthanide complexes in solution. Chemical Communications, 2021, 57 (1), pp.53-56. ⟨10.1039/D0CC07337G⟩. ⟨hal-03047118⟩
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