Phenylene‐Bridged Perylene Monoimides as Acceptors for Organic Solar Cells: A Study on the Structure–Property Relationship. Issue 23 (19th March 2022)

• Record Type: Journal Article
• Authors: Schweda, Bettina; Reinfelds, Matiss; Hofinger, Jakob; Bäumel, Georg; Rath, Thomas; Kaschnitz, Petra; Fischer, Roland C.; Flock, Michaela; Amenitsch, Heinz; Scharber, Markus Clark; Trimmel, Gregor
• Is Part Of: Chemistry. Volume 28:Issue 23(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-03-19
• Subjects: density functional calculations -- donor-acceptor systems -- dyes -- organic photovoltaics -- perylene monoimide; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.202200276
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: A series of non‐fullerene acceptors based on perylene monoimides coupled in the peri position through phenylene linkers were synthesized via Suzuki‐coupling reactions. Various substitution patterns were investigated using density functional theory (DFT) calculations in combination with experimental data to elucidate the geometry and their optical and electrochemical properties. Further investigations of the bulk properties with grazing incidence wide angle X‐ray scattering (GIWAXS) gave insight into the stacking behavior of the acceptor thin films. Electrochemical and morphological properties correlate with the photovoltaic performance of devices with the polymeric donor PBDB‐T and a maximum efficiency of 3.17 % was reached. The study gives detailed information about structure–property relationships of perylene‐linker‐perylene compounds. Abstract : Out with the old, in with the new : Perylene monoimide has long been in the shadow of its famous sibling: perylene diimide. And this, despite its talents! In this study, perylene monoimide takes the spotlight and it has things to tell.