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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202210463
|2 doi
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|a pubmed24n1168.xml
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|a (DE-627)NLM350579709
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|a (NLM)36546408
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|a DE-627
|b ger
|c DE-627
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|a eng
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|a Zhao, Fuwen
|e verfasserin
|4 aut
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|a Fullerene-Liquid-Crystal-Induced Micrometer-Scale Charge-Carrier Diffusion in Organic Bulk Heterojunction
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|c 2023
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 02.03.2023
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|a Date Revised 02.03.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a The short charge-carrier diffusion length (LD ) (100-300 nm) in organic bulk heterojunction (BHJ) impedes the further improvement in power conversion efficiency (PCE) of organic solar cells (OSCs), especially for thick-film (>400 nm) devices matching with industrial solution processing. Here a facile method is developed to efficiently increase LD and then improve PCEs of OSCs via introducing a fullerene liquid crystal, F1, into the active layer. F1 combines the inherent high electron mobility of fullerene and strong self-assembly capacity of liquid crystal, providing a fast channel for charge-carrier transport and reducing energetic disorder and trap density in BHJ film via enhancing crystallization. Typically, in PM6:Y6:F1 BHJ, the enhanced charge-carrier mobility (>10-2 cm-2 V-1 s-1 ) and prolonged charge-carrier lifetime (55.3 µs) are acquired to realize the record LD of 1.6 or 2.4 µm for electron or hole, respectively, which are much higher than those of the PM6:Y6 binary sample and comparable to or even better than those values reported for some inorganic/hybrid materials, such as CuInx Ga(1- x ) Se2 (CIGS) and perovskite thin films. Benefitting from the micrometer-scale LD , the PM6:Y6:F1 ternary OSCs sustain a remarkable PCE of 15.23% with the active layer thickness approaching 500 nm
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|a Journal Article
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|a charge-carrier diffusion length
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|a fullerene liquid crystals
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|a high-efficiency thick-film devices
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|a organic solar cells
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|a He, Dan
|e verfasserin
|4 aut
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|a Zou, Can
|e verfasserin
|4 aut
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|a Li, Yawen
|e verfasserin
|4 aut
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|a Wang, Ke
|e verfasserin
|4 aut
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|a Zhang, Jianqi
|e verfasserin
|4 aut
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|a Yang, Shuang
|e verfasserin
|4 aut
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|a Tu, Yingfeng
|e verfasserin
|4 aut
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|a Wang, Chunru
|e verfasserin
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|a Lin, Yuze
|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 35(2023), 9 vom: 01. März, Seite e2210463
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:35
|g year:2023
|g number:9
|g day:01
|g month:03
|g pages:e2210463
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|u http://dx.doi.org/10.1002/adma.202210463
|3 Volltext
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