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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202208986
|2 doi
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|a pubmed24n1167.xml
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|a eng
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|a Han, Chenyu
|e verfasserin
|4 aut
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|a Over 19% Efficiency Organic Solar Cells by Regulating Multidimensional Intermolecular Interactions
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|c 2023
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 13.03.2023
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|a Date Revised 13.03.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Research on organic solar cells (OSCs) has progressed through material innovation and device engineering. However, well-known and ubiquitous intermolecular interactions, and particularly their synergistic effects, have received little attention. Herein, the complicated relationship between photovoltaic conversion and multidimensional intermolecular interactions in the active layers is investigated. These interactions are dually regulated by side-chain isomerization and end-cap engineering of the acceptors. The phenylalkyl featured acceptors (LA-series) exhibit stronger crystallinity with preferential face-on interactions relative to the alkylphenyl attached isomers (ITIC-series). In addition, the PM6 and LA-series acceptors exhibit moderate donor/acceptor interactions compared to those of the strongly interacting PM6/ITIC-series pairs, which helps to enhance phase separation and charge transport. Consequently, the output efficiencies of all LA series acceptors are over 14%. Moreover, LA-series acceptors show appropriate compatibility, host/guest interactions, and crystallinity relationships with BTP-eC9, thereby leading to uniform and well-organized "alloy-like" mixed phases. In particular, the highly crystalline LA23 further optimizes multiple interactions and ternary microstructures, which results in a high efficiency of 19.12%. Thus, these results highlight the importance of multidimensional intermolecular interactions in the photovoltaic performance of OSCs
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|a Journal Article
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|a compatibility
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|a crystallinity
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|a multidimensional interactions
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|a organic solar cells
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|a phenylalkyl
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|a Wang, Jianxiao
|e verfasserin
|4 aut
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|a Zhang, Shuai
|e verfasserin
|4 aut
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|a Chen, Liangliang
|e verfasserin
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|a Bi, Fuzhen
|e verfasserin
|4 aut
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|a Wang, Junjie
|e verfasserin
|4 aut
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|a Yang, Chunming
|e verfasserin
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|a Wang, Pengchao
|e verfasserin
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|a Li, Yonghai
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|a Bao, Xichang
|e verfasserin
|4 aut
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
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|g 35(2023), 10 vom: 11. März, Seite e2208986
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|g volume:35
|g year:2023
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|g month:03
|g pages:e2208986
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|u http://dx.doi.org/10.1002/adma.202208986
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