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Article: A Facile Method to Fine-Tune Polymer Aggregation Properties and Blend Morphology of Polymer Solar Cells Using Donor Polymers with Randomly Distributed Alkyl Chains

TitleA Facile Method to Fine-Tune Polymer Aggregation Properties and Blend Morphology of Polymer Solar Cells Using Donor Polymers with Randomly Distributed Alkyl Chains
Authors
Keywordsfullerene
polymer solar cells
side-chain engineering
random polymers
high efficiency
Issue Date2018
Citation
Advanced Energy Materials, 2018, v. 8, n. 6, article no. 1701895 How to Cite?
Abstract© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The device performance of polymer solar cells (PSCs) is strongly dependent on the blend morphology. One of the strategies for improving PSC performance is side-chain engineering, which plays an important role in controlling the aggregation properties of the polymers and thus the domain crystallinity/purity of the donor–acceptor blends. In particular, for a family of high-performance donor polymers with strong temperature-dependent aggregation properties, the device performances are very sensitive to the size of alkyl chains, and the best device performance can only be achieved with an optimized odd-numbered alkyl chain. However, the synthetic route of odd-numbered alkyl chains is costly and complicated, which makes it difficult for large-scale synthesis. Here, this study presents a facile method to optimize the aggregation properties and blend morphology by employing donor polymers with a mixture of two even-numbered, randomly distributed alkyl chains. In a model polymer system, this study suggests that the structural and electronic properties of the random polymers comprising a mixture of 2-octyldodecyl and 2-decyltetradecyl alkyl chains can be systematically tuned by varying the mixing ratio, and a high power conversion efficiency (11.1%) can be achieved. This approach promotes the scalability of donor polymers and thus facilitates the commercialization of PSCs.
Persistent Identifierhttp://hdl.handle.net/10722/285960
ISSN
2019 Impact Factor: 25.245
2015 SCImago Journal Rankings: 6.411
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYao, Huatong-
dc.contributor.authorLi, Yunke-
dc.contributor.authorHu, Huawei-
dc.contributor.authorChow, Philip C.Y.-
dc.contributor.authorChen, Shangshang-
dc.contributor.authorZhao, Jingbo-
dc.contributor.authorLi, Zhengke-
dc.contributor.authorCarpenter, Joshua H.-
dc.contributor.authorLai, Joshua Yuk Lin-
dc.contributor.authorYang, Guofang-
dc.contributor.authorLiu, Yuhang-
dc.contributor.authorLin, Haoran-
dc.contributor.authorAde, Harald-
dc.contributor.authorYan, He-
dc.date.accessioned2020-08-18T04:57:06Z-
dc.date.available2020-08-18T04:57:06Z-
dc.date.issued2018-
dc.identifier.citationAdvanced Energy Materials, 2018, v. 8, n. 6, article no. 1701895-
dc.identifier.issn1614-6832-
dc.identifier.urihttp://hdl.handle.net/10722/285960-
dc.description.abstract© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The device performance of polymer solar cells (PSCs) is strongly dependent on the blend morphology. One of the strategies for improving PSC performance is side-chain engineering, which plays an important role in controlling the aggregation properties of the polymers and thus the domain crystallinity/purity of the donor–acceptor blends. In particular, for a family of high-performance donor polymers with strong temperature-dependent aggregation properties, the device performances are very sensitive to the size of alkyl chains, and the best device performance can only be achieved with an optimized odd-numbered alkyl chain. However, the synthetic route of odd-numbered alkyl chains is costly and complicated, which makes it difficult for large-scale synthesis. Here, this study presents a facile method to optimize the aggregation properties and blend morphology by employing donor polymers with a mixture of two even-numbered, randomly distributed alkyl chains. In a model polymer system, this study suggests that the structural and electronic properties of the random polymers comprising a mixture of 2-octyldodecyl and 2-decyltetradecyl alkyl chains can be systematically tuned by varying the mixing ratio, and a high power conversion efficiency (11.1%) can be achieved. This approach promotes the scalability of donor polymers and thus facilitates the commercialization of PSCs.-
dc.languageeng-
dc.relation.ispartofAdvanced Energy Materials-
dc.subjectfullerene-
dc.subjectpolymer solar cells-
dc.subjectside-chain engineering-
dc.subjectrandom polymers-
dc.subjecthigh efficiency-
dc.titleA Facile Method to Fine-Tune Polymer Aggregation Properties and Blend Morphology of Polymer Solar Cells Using Donor Polymers with Randomly Distributed Alkyl Chains-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/aenm.201701895-
dc.identifier.scopuseid_2-s2.0-85031096510-
dc.identifier.volume8-
dc.identifier.issue6-
dc.identifier.spagearticle no. 1701895-
dc.identifier.epagearticle no. 1701895-
dc.identifier.eissn1614-6840-
dc.identifier.isiWOS:000426152400013-

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