High Performance As-Cast Organic Solar Cells Enabled by a Refined Double-Fibril Network Morphology and Improved Dielectric Constant of Active Layer
© 2024 Wiley‐VCH GmbH..
High performance organic solar cells (OSCs) are usually realized by using post-treatment and/or additive, which can induce the formation of metastable morphology, leading to unfavorable device stability. In terms of the industrial production, the development of high efficiency as-cast OSCs is crucially important, but it remains a great challenge to obtain appropriate active layer morphology and high power conversion efficiency (PCE). Here, efficient as-cast OSCs are constructed via introducing a new polymer acceptor PY-TPT with a high dielectric constant into the D18:L8-BO blend to form a double-fibril network morphology. Besides, the incorporation of PY-TPT enables an enhanced dielectric constant and lower exciton binding energy of active layer. Therefore, efficient exciton dissociation and charge transport are realized in D18:L8-BO:PY-TPT-based device, affording a record-high PCE of 18.60% and excellent photostability in absence of post-treatment. Moreover, green solvent-processed devices, thick-film (300 nm) devices, and module (16.60 cm2) are fabricated, which show PCEs of 17.45%, 17.54%, and 13.84%, respectively. This work brings new insight into the construction of efficient as-cast devices, pushing forward the practical application 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: |
Advanced materials (Deerfield Beach, Fla.) - (2024) vom: 24. Apr., Seite e2403294 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Wei, Yanan [VerfasserIn] |
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Links: |
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Themen: |
As‐cast |
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Anmerkungen: |
Date Revised 03.05.2024 published: Print-Electronic Citation Status Publisher |
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doi: |
10.1002/adma.202403294 |
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funding: |
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PPN (Katalog-ID): |
NLM37146160X |
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520 | |a High performance organic solar cells (OSCs) are usually realized by using post-treatment and/or additive, which can induce the formation of metastable morphology, leading to unfavorable device stability. In terms of the industrial production, the development of high efficiency as-cast OSCs is crucially important, but it remains a great challenge to obtain appropriate active layer morphology and high power conversion efficiency (PCE). Here, efficient as-cast OSCs are constructed via introducing a new polymer acceptor PY-TPT with a high dielectric constant into the D18:L8-BO blend to form a double-fibril network morphology. Besides, the incorporation of PY-TPT enables an enhanced dielectric constant and lower exciton binding energy of active layer. Therefore, efficient exciton dissociation and charge transport are realized in D18:L8-BO:PY-TPT-based device, affording a record-high PCE of 18.60% and excellent photostability in absence of post-treatment. Moreover, green solvent-processed devices, thick-film (300 nm) devices, and module (16.60 cm2) are fabricated, which show PCEs of 17.45%, 17.54%, and 13.84%, respectively. This work brings new insight into the construction of efficient as-cast devices, pushing forward the practical application of OSCs | ||
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700 | 1 | |a Zhou, Xianmin |e verfasserin |4 aut | |
700 | 1 | |a Cai, Yunhao |e verfasserin |4 aut | |
700 | 1 | |a Li, Yun |e verfasserin |4 aut | |
700 | 1 | |a Wang, Siying |e verfasserin |4 aut | |
700 | 1 | |a Fu, Zhen |e verfasserin |4 aut | |
700 | 1 | |a Sun, Rui |e verfasserin |4 aut | |
700 | 1 | |a Yu, Na |e verfasserin |4 aut | |
700 | 1 | |a Li, Congqi |e verfasserin |4 aut | |
700 | 1 | |a Huang, Kexin |e verfasserin |4 aut | |
700 | 1 | |a Bi, Zhaozhao |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Xin |e verfasserin |4 aut | |
700 | 1 | |a Zhou, Yinhua |e verfasserin |4 aut | |
700 | 1 | |a Hao, Xiaotao |e verfasserin |4 aut | |
700 | 1 | |a Min, Jie |e verfasserin |4 aut | |
700 | 1 | |a Tang, Zheng |e verfasserin |4 aut | |
700 | 1 | |a Ma, Wei |e verfasserin |4 aut | |
700 | 1 | |a Sun, Yanming |e verfasserin |4 aut | |
700 | 1 | |a Huang, Hui |e verfasserin |4 aut | |
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