File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Alkyl Chain Regiochemistry of Benzotriazole-Based Donor Polymers Influencing Morphology and Performances of Non-Fullerene Organic Solar Cells

TitleAlkyl Chain Regiochemistry of Benzotriazole-Based Donor Polymers Influencing Morphology and Performances of Non-Fullerene Organic Solar Cells
Authors
Keywordsmorphology
organic solar cells
small-molecular acceptors
alkyl chains
Issue Date2018
Citation
Advanced Energy Materials, 2018, v. 8, n. 11, article no. 1702427 How to Cite?
Abstract© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The effects of alkyl chain regiochemistry on the properties of donor polymers and performances of non-fullerene organic solar cells are investigated. Two donor polymers (PfBTAZ and PfBTAZS) are compared that have nearly identical chemical structures except for the regiochemistry of alkyl chains. The optical properties and crystallinity of two polymers are nearly identical yet the PfBTAZ:O-IDTBR blend exhibits nearly double domain size compared to the blend based on PfBTAZS:O-IDTBR. To reveal the origins of the very different domain size of two blends, the morphology of neat polymer films is characterized, and it is found that PfBTAZ tends to aggregate into much larger polymer fibers without the presence of O-IDTBR. This indicates that it is not the polymer:O-IDTBR interactions but the intrinsic aggregation properties of two polymers that determine the morphology features of neat and blend films. The stronger aggregation tendency of PfBTAZ could be explained by its more co-planar geometry of the polymer backbone arising from the different alkyl chain regiochemistry. Combined with the similar trend observed in another set of donor polymers (PTFB-P and PTFB-PS), the results provide an important understanding of the structure–property relationships that could guide the development of donor polymers for non-fullerene organic solar cells.
Persistent Identifierhttp://hdl.handle.net/10722/285800
ISSN
2019 Impact Factor: 25.245
2015 SCImago Journal Rankings: 6.411

 

DC FieldValueLanguage
dc.contributor.authorChen, Shangshang-
dc.contributor.authorZhang, Lin-
dc.contributor.authorMa, Chao-
dc.contributor.authorMeng, Dong-
dc.contributor.authorZhang, Jianquan-
dc.contributor.authorZhang, Guangye-
dc.contributor.authorLi, Zhengke-
dc.contributor.authorChow, Philip C.Y.-
dc.contributor.authorMa, Wei-
dc.contributor.authorWang, Zhaohui-
dc.contributor.authorWong, Kam Sing-
dc.contributor.authorAde, Harald-
dc.contributor.authorYan, He-
dc.date.accessioned2020-08-18T04:56:40Z-
dc.date.available2020-08-18T04:56:40Z-
dc.date.issued2018-
dc.identifier.citationAdvanced Energy Materials, 2018, v. 8, n. 11, article no. 1702427-
dc.identifier.issn1614-6832-
dc.identifier.urihttp://hdl.handle.net/10722/285800-
dc.description.abstract© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The effects of alkyl chain regiochemistry on the properties of donor polymers and performances of non-fullerene organic solar cells are investigated. Two donor polymers (PfBTAZ and PfBTAZS) are compared that have nearly identical chemical structures except for the regiochemistry of alkyl chains. The optical properties and crystallinity of two polymers are nearly identical yet the PfBTAZ:O-IDTBR blend exhibits nearly double domain size compared to the blend based on PfBTAZS:O-IDTBR. To reveal the origins of the very different domain size of two blends, the morphology of neat polymer films is characterized, and it is found that PfBTAZ tends to aggregate into much larger polymer fibers without the presence of O-IDTBR. This indicates that it is not the polymer:O-IDTBR interactions but the intrinsic aggregation properties of two polymers that determine the morphology features of neat and blend films. The stronger aggregation tendency of PfBTAZ could be explained by its more co-planar geometry of the polymer backbone arising from the different alkyl chain regiochemistry. Combined with the similar trend observed in another set of donor polymers (PTFB-P and PTFB-PS), the results provide an important understanding of the structure–property relationships that could guide the development of donor polymers for non-fullerene organic solar cells.-
dc.languageeng-
dc.relation.ispartofAdvanced Energy Materials-
dc.subjectmorphology-
dc.subjectorganic solar cells-
dc.subjectsmall-molecular acceptors-
dc.subjectalkyl chains-
dc.titleAlkyl Chain Regiochemistry of Benzotriazole-Based Donor Polymers Influencing Morphology and Performances of Non-Fullerene Organic Solar Cells-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/aenm.201702427-
dc.identifier.scopuseid_2-s2.0-85040191991-
dc.identifier.volume8-
dc.identifier.issue11-
dc.identifier.spagearticle no. 1702427-
dc.identifier.epagearticle no. 1702427-
dc.identifier.eissn1614-6840-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats