Investigating the effect of heteroatom substitution in 2,1,3-benzoxadiazole and 2,1,3-benzothiadiazole compounds for organic photovoltaics
Investigating the effect of heteroatom substitution in 2,1,3-benzoxadiazole and 2,1,3-benzothiadiazole compounds for organic photovoltaics
Two new donor-acceptor-donor molecules, featuring either 2,1,3-benzothiadiazole (BT) or 2,1,3-benzoxadiazole (BO) and capped by benzofuranyl-thienyl groups, are presented. The structures of these novel compounds differ only in the identity of one heteroatom in the acceptor unit. Replacement of the sulfur atom in BT with oxygen results in a marked improvement in the performance of PC61BM blends in bulk heterojunction organic photovoltaic (BHJ OPV) devices: a 10-fold increase in PCE is observed when switching to the BO analogue. This is partly due to a preferable morphology in the donor-fullerene blends formed upon spin-coating from chlorinated solvents.
3709-3714
Cameron, Joseph
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Abed, Mahmoud Matar
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Chapman, Steven J.
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Findlay, Neil J.
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Skabara, Peter J.
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Horton, Peter N.
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Coles, Simon J.
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Cameron, Joseph
569f2ded-aded-4c54-a045-556ad9b0cd81
Abed, Mahmoud Matar
7cd0d9d7-2eae-489c-8b1b-d3769cbf5c28
Chapman, Steven J.
94eccffa-46bd-4842-a747-9bce2b18f5c3
Findlay, Neil J.
6f6367a4-3b3c-4fb7-9ee7-3d53ad3dab8a
Skabara, Peter J.
7138e414-7d50-41c7-933e-0bccad2fa4cd
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Coles, Simon J.
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Cameron, Joseph, Abed, Mahmoud Matar, Chapman, Steven J., Findlay, Neil J., Skabara, Peter J., Horton, Peter N. and Coles, Simon J.
(2017)
Investigating the effect of heteroatom substitution in 2,1,3-benzoxadiazole and 2,1,3-benzothiadiazole compounds for organic photovoltaics.
Journal of Materials Chemistry C, 6 (14), .
(doi:10.1039/c7tc05075e).
Abstract
Two new donor-acceptor-donor molecules, featuring either 2,1,3-benzothiadiazole (BT) or 2,1,3-benzoxadiazole (BO) and capped by benzofuranyl-thienyl groups, are presented. The structures of these novel compounds differ only in the identity of one heteroatom in the acceptor unit. Replacement of the sulfur atom in BT with oxygen results in a marked improvement in the performance of PC61BM blends in bulk heterojunction organic photovoltaic (BHJ OPV) devices: a 10-fold increase in PCE is observed when switching to the BO analogue. This is partly due to a preferable morphology in the donor-fullerene blends formed upon spin-coating from chlorinated solvents.
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Accepted/In Press date: 17 December 2017
e-pub ahead of print date: 21 December 2017
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Local EPrints ID: 419630
URI: http://eprints.soton.ac.uk/id/eprint/419630
ISSN: 2050-7534
PURE UUID: 324fa8bc-4cb7-4cc3-a53f-e7b13cb718d9
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Date deposited: 17 Apr 2018 16:30
Last modified: 06 Jun 2024 01:38
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Author:
Joseph Cameron
Author:
Mahmoud Matar Abed
Author:
Steven J. Chapman
Author:
Neil J. Findlay
Author:
Peter J. Skabara
Author:
Peter N. Horton
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