Completely Non-Fused Low-Cost Acceptor Enables Organic Photovoltaic Cells with 17 % Efficiency
© 2024 Wiley‐VCH GmbH..
To meet the industrial requirements of organic photovoltaic (OPV) cells, it is imperative to accelerate the development of cost-effective materials. Thiophene-benzene-thiophene central unit-based acceptors possess the advantage of low synthetic cost, while their power conversion efficiency (PCE) is relatively low. Here, by incorporating a para-substituted benzene unit and 1st-position branched alkoxy chains with large steric hindrance, a completely non-fused non-fullerene acceptor, TBT-26, was designed and synthesized. The narrow band gap of 1.38 eV ensures the effective utilization of sunlight. The favorable phase separation morphology of TBT-26-based blend film facilitates the efficient exciton dissociation and charge transport in corresponding OPV cell. Therefore, the TBT-26-based small-area cell achieves an impressive PCE of 17.0 %, which is the highest value of completely non-fused OPV cells. Additionally, we successfully demonstrated the scalability of this design by fabricating a 28.8 cm2 module with a high PCE of 14.3 %. Overall, our work provides a practical molecular design strategy for developing high-performance and low-cost acceptors, paving the way for industrial applications of OPV technology.
| 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: 24. März, Seite e202403753 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yang, Ni [VerfasserIn] |
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| Links: |
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| Themen: |
Journal Article |
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Date Revised 15.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/anie.202403753 |
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| 520 | |a © 2024 Wiley‐VCH GmbH. | ||
| 520 | |a To meet the industrial requirements of organic photovoltaic (OPV) cells, it is imperative to accelerate the development of cost-effective materials. Thiophene-benzene-thiophene central unit-based acceptors possess the advantage of low synthetic cost, while their power conversion efficiency (PCE) is relatively low. Here, by incorporating a para-substituted benzene unit and 1st-position branched alkoxy chains with large steric hindrance, a completely non-fused non-fullerene acceptor, TBT-26, was designed and synthesized. The narrow band gap of 1.38 eV ensures the effective utilization of sunlight. The favorable phase separation morphology of TBT-26-based blend film facilitates the efficient exciton dissociation and charge transport in corresponding OPV cell. Therefore, the TBT-26-based small-area cell achieves an impressive PCE of 17.0 %, which is the highest value of completely non-fused OPV cells. Additionally, we successfully demonstrated the scalability of this design by fabricating a 28.8 cm2 module with a high PCE of 14.3 %. Overall, our work provides a practical molecular design strategy for developing high-performance and low-cost acceptors, paving the way for industrial applications of OPV technology | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a low cost | |
| 650 | 4 | |a molecular design | |
| 650 | 4 | |a non-fused acceptor | |
| 650 | 4 | |a organic photovoltaic cell | |
| 650 | 4 | |a power conversion efficiency | |
| 700 | 1 | |a Cui, Yong |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Yang |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Zhihao |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Tao |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Yue |e verfasserin |4 aut | |
| 700 | 1 | |a Ren, Junzhen |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Wenxuan |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Lijiao |e verfasserin |4 aut | |
| 700 | 1 | |a Hou, Jianhui |e verfasserin |4 aut | |
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