Ethylenedioxythiophene-based Small Molecular Donor with Multiple Conformation Locks for Organic Solar Cells with Efficiency of 19.3
© 2024 Wiley‐VCH GmbH..
Ternary organic solar cells (T-OSCs) represent an efficient strategy for enhancing the performance of OSCs. Presently, the majority of high-performance T-OSCs incorporates well-established Y-acceptors or donor polymers as the third component. In this study, a novel class of conjugated small molecules has been introduced as the third component, demonstrating exceptional photovoltaic performance in T-OSCs. This innovative molecule comprises ethylenedioxythiophene (EDOT) bridge and 3-ethylrhodanine as the end group, with the EDOT unit facilitating the creation of multiple conformation locks. Consequently, the EDOT-based molecule exhibits two-dimensional charge transport, distinguishing it from the thiophene-bridged small molecule, which displays fewer conformation locks and provides one-dimensional charge transport. Furthermore, the robust electron-donating nature of EDOT imparts the small molecule with cascade energy levels relative to the electron donor and acceptor. As a result, OSCs incorporating the EDOT-based small molecule as the third component demonstrate enhanced mobilities, yielding a remarkable efficiency of 19.3%, surpassing the efficiency of 18.7% observed for OSCs incorporating thiophene-based small molecule as the third component. The investigations in this study underscore the excellence of EDOT as a building block for constructing conjugated materials with multiple conformation locks and high charge carrier mobilities, thereby contributing to elevated photovoltaic performance in 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: 16. Apr., Seite e202403015 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Xie, Qian [VerfasserIn] |
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| Links: |
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| Themen: |
Conformation locks |
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| Anmerkungen: |
Date Revised 16.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/anie.202403015 |
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| funding: |
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| PPN (Katalog-ID): |
NLM371121620 |
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| 520 | |a Ternary organic solar cells (T-OSCs) represent an efficient strategy for enhancing the performance of OSCs. Presently, the majority of high-performance T-OSCs incorporates well-established Y-acceptors or donor polymers as the third component. In this study, a novel class of conjugated small molecules has been introduced as the third component, demonstrating exceptional photovoltaic performance in T-OSCs. This innovative molecule comprises ethylenedioxythiophene (EDOT) bridge and 3-ethylrhodanine as the end group, with the EDOT unit facilitating the creation of multiple conformation locks. Consequently, the EDOT-based molecule exhibits two-dimensional charge transport, distinguishing it from the thiophene-bridged small molecule, which displays fewer conformation locks and provides one-dimensional charge transport. Furthermore, the robust electron-donating nature of EDOT imparts the small molecule with cascade energy levels relative to the electron donor and acceptor. As a result, OSCs incorporating the EDOT-based small molecule as the third component demonstrate enhanced mobilities, yielding a remarkable efficiency of 19.3%, surpassing the efficiency of 18.7% observed for OSCs incorporating thiophene-based small molecule as the third component. The investigations in this study underscore the excellence of EDOT as a building block for constructing conjugated materials with multiple conformation locks and high charge carrier mobilities, thereby contributing to elevated photovoltaic performance in OSCs | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a ethylenedioxythiophene | |
| 650 | 4 | |a organic solar cells | |
| 650 | 4 | |a power conversion efficiency | |
| 700 | 1 | |a Deng, Xiangmeng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Chaowei |e verfasserin |4 aut | |
| 700 | 1 | |a Fang, Jie |e verfasserin |4 aut | |
| 700 | 1 | |a Xia, Dongdong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yuefeng |e verfasserin |4 aut | |
| 700 | 1 | |a Ding, Feng |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Jiali |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Mengdi |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Zhou |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Chengyi |e verfasserin |4 aut | |
| 700 | 1 | |a Liao, Xunfan |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Lang |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Bin |e verfasserin |4 aut | |
| 700 | 1 | |a Dai, Runying |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Weiwei |e verfasserin |4 aut | |
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