Harnessing strong aromatic conjugation in low-dimensional perovskite heterojunctions for high-performance photovoltaic devices
© 2024. The Author(s)..
Low-dimensional/three-dimensional perovskite heterojunctions have shown great potential for improving the performance of perovskite photovoltaics, but large organic cations in low-dimensional perovskites hinder charge transport and cause carrier mobility anisotropy at the heterojunction interface. Here, we report a low-dimensional/three-dimensional perovskite heterojunction that introduces strong aromatic conjugated low-dimensional perovskites in p-i-n devices to reduce the electron transport resistance crossing the perovskite/electron extraction interface. The strong aromatic conjugated π-conjugated network results in continuous energy orbits among [Pb2I6]2- frameworks, thereby effectively suppressing interfacial non-radiative recombination and boosting carrier extraction. Consequently, the devices achieved an improved efficiency to 25.66% (certified 25.20%), and maintained over 95% of the initial efficiency after 1200 hours and 1000 hours under ISOS-L-1I and ISOS-D-1 protocols, respectively. The chemical design of strong aromatic conjugated molecules in perovskite heterojunctions provides a promising avenue for developing efficient and stable perovskite photovoltaics.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:15 |
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| Enthalten in: |
Nature communications - 15(2024), 1 vom: 29. März, Seite 2753 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Li, Bo [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 26.04.2024 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1038/s41467-024-47112-y |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a © 2024. The Author(s). | ||
| 520 | |a Low-dimensional/three-dimensional perovskite heterojunctions have shown great potential for improving the performance of perovskite photovoltaics, but large organic cations in low-dimensional perovskites hinder charge transport and cause carrier mobility anisotropy at the heterojunction interface. Here, we report a low-dimensional/three-dimensional perovskite heterojunction that introduces strong aromatic conjugated low-dimensional perovskites in p-i-n devices to reduce the electron transport resistance crossing the perovskite/electron extraction interface. The strong aromatic conjugated π-conjugated network results in continuous energy orbits among [Pb2I6]2- frameworks, thereby effectively suppressing interfacial non-radiative recombination and boosting carrier extraction. Consequently, the devices achieved an improved efficiency to 25.66% (certified 25.20%), and maintained over 95% of the initial efficiency after 1200 hours and 1000 hours under ISOS-L-1I and ISOS-D-1 protocols, respectively. The chemical design of strong aromatic conjugated molecules in perovskite heterojunctions provides a promising avenue for developing efficient and stable perovskite photovoltaics | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Liu, Qi |e verfasserin |4 aut | |
| 700 | 1 | |a Gong, Jianqiu |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Shuai |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Chunlei |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Danpeng |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Zhongwei |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Zhen |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Dan |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Zexin |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xintong |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Haipeng |e verfasserin |4 aut | |
| 700 | 1 | |a Zeng, Xiao Cheng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Zonglong |e verfasserin |4 aut | |
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