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240712s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202405005
|2 doi
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|a pubmed24n1516.xml
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|a eng
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|a Ma, Ruijie
|e verfasserin
|4 aut
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|a Insulator Polymer Matrix Construction on All-Small-Molecule Photoactive Blend Towards Extrapolated 15000 Hour T80 Stable Devices
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a Date Revised 28.08.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.
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|a To boost the stability of all-small-molecule (ASM) organic photovoltaic (OPV) blends, an insulator polymer called styrene-ethylene-butylene-styrene (SEBS) as morphology stabilizer is applied into the host system of small molecules BM-ClEH:BO-4Cl. Minor addition of SEBS (1 mg/ml in host solution) provides a significantly enhanced T80 value of 15000 hours (extrapolated), surpassing doping-free (0 mg/ml) and heavy doping (10 mg/ml) counterparts (900 hours, 30 hours). The material reproducibility and cost-effectiveness of the active layer will not be affected by this industrially available polymer, where the power conversion efficiency (PCE) can be well maintained at 15.02%, which is still a decent value for non-halogen solvent-treated ASM OPV. Morphological and photophysical characterizations clearly demonstrate SEBS's pivotal effect on suppressing the degradation of donor molecules and blend film's crystallization/aggregation reorganization, which protects the exciton dynamics effectively. This work pays meaningful attention to the ASM system stability, performs a smart strategy to suppress the film morphology degradation, and releases a comprehensive understanding of the mechanism of device performance reduction
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|a Journal Article
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|a additive
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|a all‐small‐molecule
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|a morphology
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|a organic photovoltaic
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|a stability
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|a Jiang, Xinyu
|e verfasserin
|4 aut
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|a Dela Peña, Top Archie
|e verfasserin
|4 aut
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|a Gao, Wei
|e verfasserin
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|a Wu, Jiaying
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|a Li, Mingjie
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|a Roth, Stephan V
|e verfasserin
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|a Müller-Buschbaum, Peter
|e verfasserin
|4 aut
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|a Li, Gang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
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|g 36(2024), 35 vom: 15. Aug., Seite e2405005
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|u http://dx.doi.org/10.1002/adma.202405005
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