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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202107361
|2 doi
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|a pubmed24n1111.xml
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|a eng
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|a Genene, Zewdneh
|e verfasserin
|4 aut
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|a Polymer Acceptors with Flexible Spacers Afford Efficient and Mechanically Robust All-Polymer Solar Cells
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|c 2022
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 10.02.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a High efficiency and mechanical robustness are both crucial for the practical applications of all-polymer solar cells (all-PSCs) in stretchable and wearable electronics. In this regard, a series of new polymer acceptors (PA s) is reported by incorporating a flexible conjugation-break spacer (FCBS) to achieve highly efficient and mechanically robust all-PSCs. Incorporation of FCBS affords the effective modulation of the crystallinity and pre-aggregation of the PA s, and achieves the optimal blend morphology with polymer donor (PD ), increasing both the photovoltaic and mechanical properties of all-PSCs. In particular, an all-PSC based on PYTS-0.3 PA incorporated with 30% FCBS and PBDB-T PD demonstrates a high power conversion efficiency (PCE) of 14.68% and excellent mechanical stretchability with a crack onset strain (COS) of 21.64% and toughness of 3.86 MJ m-3 , which is significantly superior to those of devices with the PA without the FCBS (PYTS-0.0, PCE = 13.01%, and toughness = 2.70 MJ m-3 ). To date, this COS is the highest value reported for PSCs with PCEs of over 8% without any insulating additives. These results reveal that the introduction of FCBS into the conjugated backbone is a highly feasible strategy to simultaneously improve the PCE and stretchability of PSCs
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|a Journal Article
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|a all-polymer solar cells
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|a flexible conjugation-break spacers
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|a mechanical robustness
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|a polymer acceptors
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4 |
|a stretchability
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1 |
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|a Lee, Jin-Woo
|e verfasserin
|4 aut
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|a Lee, Sun-Woo
|e verfasserin
|4 aut
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|a Chen, Qiaonan
|e verfasserin
|4 aut
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|a Tan, Zhengping
|e verfasserin
|4 aut
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|a Abdulahi, Birhan A
|e verfasserin
|4 aut
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|a Yu, Donghong
|e verfasserin
|4 aut
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|a Kim, Taek-Soo
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|a Kim, Bumjoon J
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|a Wang, Ergang
|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 34(2022), 6 vom: 24. Feb., Seite e2107361
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:6
|g day:24
|g month:02
|g pages:e2107361
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|u http://dx.doi.org/10.1002/adma.202107361
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