A four-directional non-fullerene acceptor based on tetraphenylethylene and diketopyrrolopyrrole functionalities for efficient photovoltaic devices with a high open-circuit voltage of 1.18 V

Through the conjunction of tetraphenylethylene and diketopyrrolopyrrole functionalities, a novel four-directional non-fullerene electron acceptor (denoted as 4D) was designed, synthesized and characterized. The new chromophore is highly soluble (for instance >30 mg mL −1 in o -dichlorobenzene), t...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2016-06, Vol.52 (55), p.8522-8525
Main Authors: Rananaware, Anushri, Gupta, Akhil, Li, JingLiang, Bilic, Ante, Jones, Lathe, Bhargava, Suresh, Bhosale, Sheshanath V
Format: Article
Language:English
Subjects:
Devices
Electric potential
Energy conversion efficiency
Energy levels
Open circuit voltage
Solar cells
Thiophenes
Voltage
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Summary:Through the conjunction of tetraphenylethylene and diketopyrrolopyrrole functionalities, a novel four-directional non-fullerene electron acceptor (denoted as 4D) was designed, synthesized and characterized. The new chromophore is highly soluble (for instance >30 mg mL −1 in o -dichlorobenzene), thermally stable, and exhibits energy levels matching those of the conventional and routinely used donor polymer poly(3-hexyl thiophene). A power conversion efficiency of 3.86% was obtained in solution-processable bulk-heterojunction devices with a very high open circuit voltage of 1.18 V. A four-directional non-fullerene electron acceptor provided a PCE of 3.86% with an excellent high V oc of 1.18 V with the archetypal donor P3HT.
ISSN:1359-7345
1364-548X
DOI:10.1039/c6cc03730e