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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201807832
|2 doi
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|a pubmed24n0977.xml
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|a (DE-627)NLM293334579
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|a (NLM)30706603
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|a DE-627
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|a eng
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| 100 |
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|a Li, Yonghai
|e verfasserin
|4 aut
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|a A Simple Phenyl Group Introduced at the Tail of Alkyl Side Chains of Small Molecular Acceptors
|b New Strategy to Balance the Crystallinity of Acceptors and Miscibility of Bulk Heterojunction Enabling Highly Efficient Organic Solar Cells
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 19.03.2019
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Research on fused-ring small-molecular-acceptors (SMAs) has deeply advanced the development of organic solar cells (OSCs). Compared to fruitful studies of ladder-type cores and end-caps of SMAs, the exploration of side chains is monotonous. The widely utilized alkyl and aryl side chains usually produce a conflicting association between SMAs' crystallinity and miscibility. Herein, a fresh idea about the modification of side chains is reported to explore the subtle balance between the crystallinity and miscibility. Specifically, a phenyl is introduced to the tail of the alkyl side chain whereby a new acceptor IDIC-C4Ph is reported. Moderately weakened crystallinity is observed, while maintaining preferred absorption profiles and face-on orientations. Concurrently, remarkably improved heterojunction morphologies and stacking orientations are detected. PBDB-T:IDIC-C4Ph devices exhibit greater efficiency of 11.50% than devices from alky and aryl modified acceptors. Notably, the as-cast OSCs of PBDB-TF:IDIC-C4Ph reveal outstanding FF over 76% with the best efficiency up to 13.23%. The annealed devices reveal further increased efficiency exceeding 14% with the state of the art FF of 78.32%. Overall, an effective but easily navigable approach is demonstrated to modulate the crystallinity of SMAs toward synergistically improved morphologies and molecular orientations of bulk heterojunction enabling highly efficient OSCs
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|a Journal Article
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|a crystallinity
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|a miscibility
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|a organic solar cell
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|a side chain
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|a small molecular acceptor
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|a Zheng, Nan
|e verfasserin
|4 aut
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|a Yu, Lu
|e verfasserin
|4 aut
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|a Wen, Shuguang
|e verfasserin
|4 aut
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|a Gao, Chenglin
|e verfasserin
|4 aut
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|a Sun, Mingliang
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Renqiang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 31(2019), 12 vom: 01. März, Seite e1807832
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:31
|g year:2019
|g number:12
|g day:01
|g month:03
|g pages:e1807832
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|u http://dx.doi.org/10.1002/adma.201807832
|3 Volltext
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