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A non-fullerene electron acceptor based on central carbazole and terminal diketopyrrolopyrrole functionalities for efficient, reproducible and solution-processable bulk-heterojunction devices

Raynor, Aaron M., Gupta, Akhil, Patil, Hemlata, Ma, Di, Bilic, Ante, Rook, Trevor J. and Bhosale, Sheshanath V. 2016, A non-fullerene electron acceptor based on central carbazole and terminal diketopyrrolopyrrole functionalities for efficient, reproducible and solution-processable bulk-heterojunction devices, RSC advances, vol. 6, no. 33, pp. 28103-28109, doi: 10.1039/c6ra01558a.

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Title A non-fullerene electron acceptor based on central carbazole and terminal diketopyrrolopyrrole functionalities for efficient, reproducible and solution-processable bulk-heterojunction devices
Author(s) Raynor, Aaron M.
Gupta, AkhilORCID iD for Gupta, Akhil orcid.org/0000-0002-1257-8104
Patil, Hemlata
Ma, Di
Bilic, Ante
Rook, Trevor J.
Bhosale, Sheshanath V.
Journal name RSC advances
Volume number 6
Issue number 33
Start page 28103
End page 28109
Total pages 7
Publisher Royal Society of Chemistry
Place of publication London, Eng.
Publication date 2016
ISSN 2046-2069
Summary A novel, solution-processable non-fullerene electron acceptor, 6,6′-((9-(heptadecan-9-yl)-9H-carbazole-2,7-diyl)bis(thiophene-5,2-diyl))bis(2,5-bis(2-ethylhexyl)-3-(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione) (coded as N7), based on central carbazole and terminal diketopyrrolopyrrole building blocks was designed, synthesized and characterized. N7 displayed excellent solubility, thanks to its design allowing incorporation of numerous lipophilic chains, thermal stability, and afforded a 2.30% power conversion efficiency with a high open-circuit voltage (1.17 V) when tested with the conventional donor polymer poly(3-hexylthiophene) in solution-processable bulk-heterojunction devices. To our knowledge, not only is N7 the first reported chromophore based on carbazole and diketopyrrolopyrrole functionalities but the open-circuit voltage reported here is among the highest values for a single junction bulk-heterojunction device that has been fabricated using a simple device architecture, with reproducible outcomes and with no special treatment.
Language eng
DOI 10.1039/c6ra01558a
Field of Research 030499 Medicinal and Biomolecular Chemistry not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084085

Document type: Journal Article
Collection: Institute for Frontier Materials
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Created: Wed, 08 Jun 2016, 10:03:20 EST

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