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241128s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202414080
|2 doi
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|a pubmed24n1616.xml
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|a (DE-627)NLM380906236
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|a (NLM)39604321
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Ding, Pengfei
|e verfasserin
|4 aut
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|a U-Shaped Dimeric Acceptors for Balancing Efficiency and Stability in Organic Solar Cells
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|c 2024
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|a Text
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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 28.11.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 Wiley‐VCH GmbH.
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|a Despite significant improvements in power conversion efficiencies (PCEs) of organic solar cells (OSCs), achieving excellent stability remains a great challenge to their commercial feasibility. Here, U-shaped dimeric acceptors (5-IDT and 6-IDT) with different molecular lengths are introduced into the binary OSCs as a third component, respectively. The introduction of the third component effectively reduces the energetic disorder and non-radiative voltage losses and improves the exciton dissociation and charge transport of the devices. Consequently, the PCEs of the 6-IDT- and 5-IDT-treated OSCs are significantly improved to 19.32% and 19.96%, respectively, which is the highest PCE for oligomeric acceptors-based ternary OSCs to date. Meanwhile, the thermal stability of the treated devices is dramatically improved, with the initial efficiency retention of the 6-IDT- and 5-IDT-treated devices increasing from 18% to 32% and 75%, respectively, after 1000 h of thermal stress. This is mainly attributed to the ability of the smaller molecular length of 5-IDT to stabilize the phase-separated morphology of the polymeric donor and small molecular acceptor, rather than the high glass transition temperature and low diffusion coefficient
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|a Journal Article
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|a acceptor
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|a dimer
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|a efficiency and stability
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|a molecular conformation
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|a organic solar cells
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|a Chen, Zhenyu
|e verfasserin
|4 aut
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|a Yang, Daobin
|e verfasserin
|4 aut
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|a Yu, Xueliang
|e verfasserin
|4 aut
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|a Shi, Jingyu
|e verfasserin
|4 aut
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|a Chen, Yiyu
|e verfasserin
|4 aut
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|a Zhu, Jintao
|e verfasserin
|4 aut
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|a Wu, Jie
|e verfasserin
|4 aut
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|a Cao, Xinyue
|e verfasserin
|4 aut
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|a Xie, Lin
|e verfasserin
|4 aut
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|a Chen, Fei
|e verfasserin
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| 700 |
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|a Ge, Ziyi
|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 (2024) vom: 27. Nov., Seite e2414080
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g year:2024
|g day:27
|g month:11
|g pages:e2414080
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|u http://dx.doi.org/10.1002/adma.202414080
|3 Volltext
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