Reactivity of organic photocatalysts displaying thermally activated delayed fluorescence (TADF): rationalizing unexpected differences between rates of quenching of the lowest singlet and triplet states

Federica Fina; Caterina Bellatreccia; Wu Jiong Xia; Pier Giorgio Cozzi; Alessandro Troisi; Sergei A. Vinogradov; Paola Ceroni

doi:10.1039/d5sc04948b

January 1, 2025Chemical ScienceOpen Access

Reactivity of organic photocatalysts displaying thermally activated delayed fluorescence (TADF): rationalizing unexpected differences between rates of quenching of the lowest singlet and triplet states

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Key Points

Kinetic simulations indicate significant differences in quenching between singlet and triplet states of TADF photocatalysts.
Stern–Volmer plots reveal distinct quenching constants for the lowest singlet state (S1) and triplet state (T1), impacting photocatalyst efficiency.
The findings enhance our understanding of TADF chromophores and their dynamic behavior in light-activated processes.
This research highlights the importance of delayed fluorescence in optimizing the performance of organic photocatalysts.

Implication

Kinetic simulations explain quenching differences in singlet and triplet states of TADF photocatalysts, suggesting underlying mechanisms.

Abstract

Kinetic simulations on TADF chromophores demonstrate that Stern–Volmer plots of prompt and delayed lifetimes yield the quenching constants for S 1 and T 1 , respectively.

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Cite This Study

Fina et al. (2025) studied this question.

synapsesocial.com/papers/68e70db290569dd607ee62f8 https://doi.org/10.1039/d5sc04948b

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Reactivity of organic photocatalysts displaying thermally activated delayed fluorescence (TADF): rationalizing unexpected differences between rates of quenching of the lowest singlet and triplet states

Key Points

Implication

Abstract

Discussion

Cite This Study

Reactivity of organic photocatalysts displaying thermally activated delayed fluorescence (TADF): rationalizing unexpected differences between rates of quenching of the lowest singlet and triplet states

Key Points

Implication

Abstract

Discussion

Cite This Study

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