Self-Polymerized Spiro-Type Interfacial Molecule toward Efficient and Stable Perovskite Solar Cells
© 2024 Wiley‐VCH GmbH..
In the pursuit of highly efficient perovskite solar cells, spiro-OMeTAD has demonstrated recorded power conversion efficiencies (PCEs), however, the stability issue remains one of the bottlenecks constraining its commercial development. In this study, we successfully synthesize a novel self-polymerized spiro-type interfacial molecule, termed v-spiro. The linearly arranged molecule exhibits stronger intermolecular interactions and higher intrinsic hole mobility compared to spiro-OMeTAD. Importantly, the vinyl groups in v-spiro enable in situ polymerization, forming a polymeric protective layer on the perovskite film surface, which proves highly effective in suppressing moisture degradation and ion migration. Utilizing these advantages, poly-v-spiro-based device achieves an outstanding efficiency of 24.54 %, with an enhanced open-circuit voltage of 1.173 V and a fill factor of 81.11 %, owing to the reduced defect density, energy level alignment and efficient interfacial hole extraction. Furthermore, the operational stability of unencapsulated devices is significantly enhanced, maintaining initial efficiencies above 90 % even after 2000 hours under approximately 60 % humidity or 1250 hours under continuous AM 1.5G sunlight exposure. This work presents a comprehensive approach to achieving both high efficiency and long-term stability in PSCs through innovative interfacial design.
| 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: 26. Feb., Seite e202318754 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tian, Qiushuang [VerfasserIn] |
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| Links: |
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| Themen: |
Cross-linked |
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| Anmerkungen: |
Date Revised 10.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/anie.202318754 |
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| funding: |
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NLM368978869 |
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| 520 | |a © 2024 Wiley‐VCH GmbH. | ||
| 520 | |a In the pursuit of highly efficient perovskite solar cells, spiro-OMeTAD has demonstrated recorded power conversion efficiencies (PCEs), however, the stability issue remains one of the bottlenecks constraining its commercial development. In this study, we successfully synthesize a novel self-polymerized spiro-type interfacial molecule, termed v-spiro. The linearly arranged molecule exhibits stronger intermolecular interactions and higher intrinsic hole mobility compared to spiro-OMeTAD. Importantly, the vinyl groups in v-spiro enable in situ polymerization, forming a polymeric protective layer on the perovskite film surface, which proves highly effective in suppressing moisture degradation and ion migration. Utilizing these advantages, poly-v-spiro-based device achieves an outstanding efficiency of 24.54 %, with an enhanced open-circuit voltage of 1.173 V and a fill factor of 81.11 %, owing to the reduced defect density, energy level alignment and efficient interfacial hole extraction. Furthermore, the operational stability of unencapsulated devices is significantly enhanced, maintaining initial efficiencies above 90 % even after 2000 hours under approximately 60 % humidity or 1250 hours under continuous AM 1.5G sunlight exposure. This work presents a comprehensive approach to achieving both high efficiency and long-term stability in PSCs through innovative interfacial design | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cross-linked | |
| 650 | 4 | |a Interfacial material | |
| 650 | 4 | |a Perovskite | |
| 650 | 4 | |a Solar cells | |
| 650 | 4 | |a Spiro-type | |
| 700 | 1 | |a Chang, Jingxi |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Junbo |e verfasserin |4 aut | |
| 700 | 1 | |a He, Qingyun |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Shaoyu |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Pinghui |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Hongze |e verfasserin |4 aut | |
| 700 | 1 | |a Lai, Jingya |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Mengyang |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Xiangru |e verfasserin |4 aut | |
| 700 | 1 | |a Zhong, Chongyu |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Renzhi |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Fangfang |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Yingguo |e verfasserin |4 aut | |
| 700 | 1 | |a Qin, Tianshi |e verfasserin |4 aut | |
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