Issue 21, 2022

AzaBenzannulated perylene diimide multimers as electron acceptors for organic solar cells

Abstract

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.

Graphical abstract: AzaBenzannulated perylene diimide multimers as electron acceptors for organic solar cells

Supplementary files

Article information

Article type
Research Article
Submitted
10 Jul 2022
Accepted
07 Sep 2022
First published
07 Sep 2022

Mater. Chem. Front., 2022,6, 3237-3242

AzaBenzannulated perylene diimide multimers as electron acceptors for organic solar cells

A. Makhloutah, A. Hoff, A. Goujon, G. C. Welch and P. Hudhomme, Mater. Chem. Front., 2022, 6, 3237 DOI: 10.1039/D2QM00667G

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