Importance of Selective Quenching of the Triplet Excited State of Thermally Activated Delayed Fluorescence (TADF) Photosensitizers in Redox-Photosensitized Reactions: Case Studies on Photocatalytic CO<sub>2</sub> Reduction
Yusuke Tamaki, Kei Kamogawa, Rei Inoue, Paola Ceroni, Osamu Ishitani
Abstract
was lower (11.9% at [BIH] = 10 mM) because of its greater oxidizing power resulting in the efficient quenching of its singlet excited state by TEOA. Based on these results, we extracted the reaction conditions and molecular designs of TADF photosensitizers suitable for constructing efficient photocatalysts, namely those minimizing the quenching of the singlet excited state and maximizing the quenching of the triplet excited state.
Topics & Concepts
ChemistryPhotochemistryExcited stateRedoxQuenching (fluorescence)FluorescencePhotocatalysisReduction (mathematics)Triplet stateCatalysisInorganic chemistryMoleculeOrganic chemistryOpticsAtomic physicsPhysicsGeometryMathematicsCO2 Reduction Techniques and CatalystsRadical Photochemical ReactionsOxidative Organic Chemistry Reactions