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September 10, 2025Journal of the American Chemical SocietyOpen Access

Importance of Selective Quenching of the Triplet Excited State of Thermally Activated Delayed Fluorescence (TADF) Photosensitizers in Redox-Photosensitized Reactions: Case Studies on Photocatalytic CO2 Reduction

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Authors

YTYusuke TamakiKKKei KamogawaRIRei Inoue

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Overview

Observational analysis reveals the interaction of singlet and triplet excited states, indicating optimal conditions for photocatalytic CO2 reduction.

Key Points

  • Maximizing the quenching of the triplet excited state improves photocatalytic efficiency in TADF photosensitizers.
  • The observed quantum yield of CO2 reduction was 43.2% at 5 mM concentration of BIH with 4DPAIPN.
  • Investigations utilized two TADF compounds, 4DPAIPN and 3DPAFIPN, in redox photosensitized reactions.
  • Adjusting reaction conditions to favor singlet state retention could lead to the development of efficient photocatalysts.

Cite This Study

Tamaki et al. (2025) studied this question.

synapsesocial.com/papers/68c1d80554b1d3bfb60fa98bhttps://doi.org/10.1021/jacs.5c10614
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