DataVXAdvanced Optical MaterialsPaper
journal article·2023-10Open access

Förster Resonance Energy Transfer Sensitized Singlet Fission in BODIPY‐Pentacene Dimer Conjugates

Anna‐Sophie Wollny, Giulia Lavarda, Ilias Papadopoulos, Ismael López‐Duarte, Henrik Gotfredsen, Yuxuan Hou, Rik R. Tykwinski, Tomás Torres, Dirk M. Guldi

Advanced Optical Materials· Volume 11· Issue 19
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Source abstract

Abstract

Abstract In the present work, the energy donor 4,4‐difluoro‐4‐bora‐3a,4a‐diaza‐s‐indacene (BODIPY) is used for the first time in combination with a pentacene dimer (Pnc2) to provide the conjugate BODIPYPnc2 that features absorption throughout a large part of the solar spectrum. Upon photoexcitation, the singlet excited state energy of BODIPY is transferred to the pentacene dimer via intramolecular Förster resonance energy transfer (FRET). Subsequently, the pentacene dimer undergoes intramolecular singlet fission. In this process, a singlet correlated triplet pair is generated from the first singlet excited state via coupling to an intermediate state. The results show that solvent polarity has an influence on the system, with the largest FRET rate (i.e., 7.46 × 1011 s−1) being obtained in the most polar solvent (namely, benzonitrile) along with the largest triplet quantum yield (i.e., 207 ± 20%).
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Research context

OpenAlex topics: Luminescence and Fluorescent Materials · Organic Light-Emitting Diodes Research · Photochemistry and Electron Transfer Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry and Pharmacy Friedrich‐Alexander‐University Erlangen‐Nürnberg Egerlandstraße 3 91058 Erlangen Germany

Department of Organic Chemistry and Institute for Advanced Research in Chemical Sciences (IAdChem) Universidad Autónoma de Madrid Cantoblanco Madrid 28049 Spain

Department of Chemistry University of Alberta 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Canada

Department of Chemistry University of Copenhagen Universitetsparken 5 Copenhagen Ø 2100 Denmark

IMDEA‐Nanociencia c/Faraday 9, Cantoblanco Madrid 28049 Spain

Funding

Deutsche Forschungsgemeinschaft · Solar Technologies go Hybrid · Comunidad de Madrid · Natural Sciences and Engineering Research Council of Canada · Canada Foundation for Innovation

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