AzaBenzannulated perylene diimide multimers as electron acceptors for organic solar cells

We present herein a series of AzaBenzannulated PDI (AzaBPDI) multimers, with their synthesis, characterizations and applications as non-fullerene acceptors in bulk-heterojunction organic solar cells. AzaBPDI dimers and trimer were prepared by a straightforward one-pot sequence of imine condensation,...

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Bibliographic Details
Published in:Materials chemistry frontiers 2022-10, Vol.6 (21), p.3237-3242
Main Authors: Makhloutah, Aline, Hoff, Anderson, Goujon, Antoine, Welch, Gregory C, Hudhomme, Piétrick
Format: Article
Language:English
Subjects:
Circuits
Diimide
Electromagnetic absorption
Energy levels
Fullerenes
Heterojunctions
Photovoltaic cells
Solar cells
Trimers
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Summary:We present herein a series of AzaBenzannulated PDI (AzaBPDI) multimers, with their synthesis, characterizations and applications as non-fullerene acceptors in bulk-heterojunction organic solar cells. AzaBPDI dimers and trimer were prepared by a straightforward one-pot sequence of imine condensation, photocyclization and re-aromatization reactions from easily accessible aminoPDI and commercially available di- or trialdehydes, respectively. Their strong visible-light absorption and LUMO energy levels between −3.53 and −3.63 eV make them suitable electron acceptors for organic solar cells. When associated with the donor polymer PM6, we observed high device open-circuit voltages over 1.1 V, thus demonstrating that the AzaBPDI scaffold has the potential for delivering high performance fullerene-free photovoltaics. We present herein a series of AzaBenzannulated PDI (AzaBPDI) multimers, with their synthesis, characterizations and applications as non-fullerene acceptors in bulk-heterojunction organic solar cells.
ISSN:2052-1537
2052-1537
DOI:10.1039/d2qm00667g