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Article: Ring-Fusion of Perylene Diimide Acceptor Enabling Efficient Nonfullerene Organic Solar Cells with a Small Voltage Loss

TitleRing-Fusion of Perylene Diimide Acceptor Enabling Efficient Nonfullerene Organic Solar Cells with a Small Voltage Loss
Authors
Issue Date2017
Citation
Journal of the American Chemical Society, 2017, v. 139, n. 45, p. 16092-16095 How to Cite?
Abstract© 2017 American Chemical Society. We report a novel small molecule acceptor (SMA) named FTTB-PDI4 obtained via ring-fusion between the thiophene and perylene diimide (PDI) units of a PDI-tetramer with a tetrathienylbezene (TTB) core. A small voltage loss of 0.53 V and a high power conversion efficiency of 10.58% were achieved, which is the highest value reported for PDI-based devices to date. By comparing the fused and nonfused SMAs, we show that the ring-fusion introduces several beneficial effects on the properties and performances of the acceptor material, including more favorable energy levels, enhanced light absorption and stronger intermolecular packing. Interestingly, morphology data reveal that the fused molecule yields higher domain purity and thus can better maintain its molecular packing and electron mobility in the blend. Theoretical calculations also demonstrate that FTTB-PDI4 exhibits a "double-decker" geometry with two pairs of mostly parallel PDI units, which is distinctively different from reported PDI-tetramers with highly twisted geometries and can explain the better performance of the material. This work highlights the promising design of PDI-based acceptors by the ring-fusion strategy.
Persistent Identifierhttp://hdl.handle.net/10722/285962
ISSN
2019 Impact Factor: 14.612
2015 SCImago Journal Rankings: 7.123

 

DC FieldValueLanguage
dc.contributor.authorZhang, Jianquan-
dc.contributor.authorLi, Yunke-
dc.contributor.authorHuang, Jiachen-
dc.contributor.authorHu, Huawei-
dc.contributor.authorZhang, Guangye-
dc.contributor.authorMa, Tingxuan-
dc.contributor.authorChow, Philip C.Y.-
dc.contributor.authorAde, Harald-
dc.contributor.authorPan, Ding-
dc.contributor.authorYan, He-
dc.date.accessioned2020-08-18T04:57:06Z-
dc.date.available2020-08-18T04:57:06Z-
dc.date.issued2017-
dc.identifier.citationJournal of the American Chemical Society, 2017, v. 139, n. 45, p. 16092-16095-
dc.identifier.issn0002-7863-
dc.identifier.urihttp://hdl.handle.net/10722/285962-
dc.description.abstract© 2017 American Chemical Society. We report a novel small molecule acceptor (SMA) named FTTB-PDI4 obtained via ring-fusion between the thiophene and perylene diimide (PDI) units of a PDI-tetramer with a tetrathienylbezene (TTB) core. A small voltage loss of 0.53 V and a high power conversion efficiency of 10.58% were achieved, which is the highest value reported for PDI-based devices to date. By comparing the fused and nonfused SMAs, we show that the ring-fusion introduces several beneficial effects on the properties and performances of the acceptor material, including more favorable energy levels, enhanced light absorption and stronger intermolecular packing. Interestingly, morphology data reveal that the fused molecule yields higher domain purity and thus can better maintain its molecular packing and electron mobility in the blend. Theoretical calculations also demonstrate that FTTB-PDI4 exhibits a "double-decker" geometry with two pairs of mostly parallel PDI units, which is distinctively different from reported PDI-tetramers with highly twisted geometries and can explain the better performance of the material. This work highlights the promising design of PDI-based acceptors by the ring-fusion strategy.-
dc.languageeng-
dc.relation.ispartofJournal of the American Chemical Society-
dc.titleRing-Fusion of Perylene Diimide Acceptor Enabling Efficient Nonfullerene Organic Solar Cells with a Small Voltage Loss-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jacs.7b09998-
dc.identifier.pmid29112393-
dc.identifier.scopuseid_2-s2.0-85034240058-
dc.identifier.volume139-
dc.identifier.issue45-
dc.identifier.spage16092-
dc.identifier.epage16095-
dc.identifier.eissn1520-5126-

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