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250808s2025 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202502275
|2 doi
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|a pubmed25n1524.xml
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|a (DE-627)NLM39083548X
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|a (NLM)40776815
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Gao, Mengyuan
|e verfasserin
|4 aut
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| 245 |
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|a Variable-Temperature X-Ray Scattering Unveils the Solution Aggregation Structures and Processing Resiliency of High-Efficiency Organic Photovoltaics with Iodinated Electron Acceptors
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 08.08.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2025 Wiley‐VCH GmbH.
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|a Polymer photovoltaics are promising for low-cost, flexible, and lightweight power supplies. Their performance is heavily influenced by the morphology of the polymer: acceptor blend, where the aggregation structures of both components play a crucial role in charge generation, transport, and overall device performance. This study probes and resolves the solution aggregation behavior and processing resilience of high-efficiency polymer photovoltaics incorporating an iodinated electron acceptor, BO-4I, using variable-temperature small-angle X-ray scattering and neutron scattering. By comparing BO-4I with its fluorinated counterpart, it is found that BO-4I exhibits excellent solution processing stability, whether in chlorobenzene or toluene. In addition, temperature-induced change in the donor:acceptor blend aggregation structure leads to significant alterations in film morphology, ultimately affecting device performance. Particularly, the stable solution aggregation structure of the BO-4I system confers processing resilience to device performance and achieves higher long-term device stability. Combining film structural analysis and device performance characterization, a structural inheritance is identified from solution to film, and determined that a organic photovoltaics polymer aggregate length of 27 ± 3 nm in solution is a key feature for achieving optimal efficiency in polymer photovoltaics. These findings provide valuable insights and guidance for designing future polymer photovoltaic systems
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|a Journal Article
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4 |
|a conjugated polymers
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| 650 |
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4 |
|a nonfullerene acceptors
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| 650 |
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4 |
|a organic photovoltaics
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| 650 |
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4 |
|a power conversion efficiency
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| 650 |
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4 |
|a solution aggregation
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| 700 |
1 |
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|a Zhang, Kai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Wenchao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Shaoqing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yiwen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Na
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Chunming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Yu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hou, Jianhui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ye, Long
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2025) vom: 08. Aug., Seite e02275
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
8 |
|g year:2025
|g day:08
|g month:08
|g pages:e02275
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|u http://dx.doi.org/10.1002/adma.202502275
|3 Volltext
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|a AR
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|j 2025
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|h e02275
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