Non-halogenated Solvent-Processed Organic Solar Cells with Approaching 20 % Efficiency and Improved Photostability
© 2024 Wiley‐VCH GmbH..
The development of high-efficiency organic solar cells (OSCs) processed from non-halogenated solvents is crucially important for their scale-up industry production. However, owing to the difficulty of regulating molecular aggregation, there is a huge efficiency gap between non-halogenated and halogenated solvent processed OSCs. Herein, we fabricate o-xylene processed OSCs with approaching 20 % efficiency by incorporating a trimeric guest acceptor named Tri-V into the PM6:L8-BO-X host blend. The incorporation of Tri-V effectively restricts the excessive aggregation of L8-BO-X, regulates the molecular packing and optimizes the phase-separation morphology, which leads to mitigated trap density states, reduced energy loss and suppressed charge recombination. Consequently, the PM6:L8-BO-X:Tri-V-based device achieves an efficiency of 19.82 %, representing the highest efficiency for non-halogenated solvent-processed OSCs reported to date. Noticeably, with the addition of Tri-V, the ternary device shows an improved photostability than binary PM6:L8-BO-X-based device, and maintains 80 % of the initial efficiency after continuous illumination for 1380 h. This work provides a feasible approach for fabricating high-efficiency, stable, eco-friendly OSCs, and sheds new light on the large-scale industrial production of OSCs.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - (2024) vom: 25. März, Seite e202404297 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Song, Jiali [VerfasserIn] |
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| Links: |
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| Themen: |
Efficiency |
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| Anmerkungen: |
Date Revised 16.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/anie.202404297 |
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| funding: |
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NLM37016556X |
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| 520 | |a The development of high-efficiency organic solar cells (OSCs) processed from non-halogenated solvents is crucially important for their scale-up industry production. However, owing to the difficulty of regulating molecular aggregation, there is a huge efficiency gap between non-halogenated and halogenated solvent processed OSCs. Herein, we fabricate o-xylene processed OSCs with approaching 20 % efficiency by incorporating a trimeric guest acceptor named Tri-V into the PM6:L8-BO-X host blend. The incorporation of Tri-V effectively restricts the excessive aggregation of L8-BO-X, regulates the molecular packing and optimizes the phase-separation morphology, which leads to mitigated trap density states, reduced energy loss and suppressed charge recombination. Consequently, the PM6:L8-BO-X:Tri-V-based device achieves an efficiency of 19.82 %, representing the highest efficiency for non-halogenated solvent-processed OSCs reported to date. Noticeably, with the addition of Tri-V, the ternary device shows an improved photostability than binary PM6:L8-BO-X-based device, and maintains 80 % of the initial efficiency after continuous illumination for 1380 h. This work provides a feasible approach for fabricating high-efficiency, stable, eco-friendly OSCs, and sheds new light on the large-scale industrial production of OSCs | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Non-halogenated solvent | |
| 650 | 4 | |a efficiency | |
| 650 | 4 | |a oligomer | |
| 650 | 4 | |a organic solar cells | |
| 700 | 1 | |a Zhang, Chen |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Chao |e verfasserin |4 aut | |
| 700 | 1 | |a Qiao, Jiawei |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Jifa |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Jiaxin |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xunchang |e verfasserin |4 aut | |
| 700 | 1 | |a Hao, Xiaotao |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Zheng |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Guanghao |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Renqiang |e verfasserin |4 aut | |
| 700 | 1 | |a Yan, He |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Yanming |e verfasserin |4 aut | |
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