Retarding Ion Migration for Stable Blade-Coated Inverted Perovskite Solar Cells
© 2023 Wiley-VCH GmbH..
The fabrication of perovskite solar cells (PSCs) through blade coating is seen as one of the most viable paths toward commercialization. However, relative to the less scalable spin coating method, the blade coating process often results in more defective perovskite films with lower grain uniformity. Ion migration, facilitated by those elevated defect levels, is one of the main triggers of phase segregation and device instability. Here, a bifunctional molecule, p-aminobenzoic acid (PABA), which enhances the barrier to ion migration, induces grain growth along the (100) facet, and promotes the formation of homogeneous perovskite films with fewer defects, is reported. As a result, PSCs with PABA achieved impressive power conversion efficiencies (PCEs) of 23.32% and 22.23% for devices with active areas of 0.1 cm2 and 1 cm2 , respectively. Furthermore, these devices maintain 93.8% of their initial efficiencies after 1 000 h under 1-sun illumination, 75 °C, and 10% relative humidity conditions.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:36 |
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| Enthalten in: |
Advanced materials (Deerfield Beach, Fla.) - 36(2024), 9 vom: 31. März, Seite e2306466 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhu, Hongwei [VerfasserIn] |
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| Links: |
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| Themen: |
Blade coating |
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| Anmerkungen: |
Date Revised 02.03.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/adma.202306466 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a The fabrication of perovskite solar cells (PSCs) through blade coating is seen as one of the most viable paths toward commercialization. However, relative to the less scalable spin coating method, the blade coating process often results in more defective perovskite films with lower grain uniformity. Ion migration, facilitated by those elevated defect levels, is one of the main triggers of phase segregation and device instability. Here, a bifunctional molecule, p-aminobenzoic acid (PABA), which enhances the barrier to ion migration, induces grain growth along the (100) facet, and promotes the formation of homogeneous perovskite films with fewer defects, is reported. As a result, PSCs with PABA achieved impressive power conversion efficiencies (PCEs) of 23.32% and 22.23% for devices with active areas of 0.1 cm2 and 1 cm2 , respectively. Furthermore, these devices maintain 93.8% of their initial efficiencies after 1 000 h under 1-sun illumination, 75 °C, and 10% relative humidity conditions | ||
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| 650 | 4 | |a retarding ion migration | |
| 700 | 1 | |a Shao, Bingyao |e verfasserin |4 aut | |
| 700 | 1 | |a Yin, Jun |e verfasserin |4 aut | |
| 700 | 1 | |a Shen, Zhongjin |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Lijie |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Ren-Wu |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Bin |e verfasserin |4 aut | |
| 700 | 1 | |a Wehbe, Nimer |e verfasserin |4 aut | |
| 700 | 1 | |a Ahmad, Taimoor |e verfasserin |4 aut | |
| 700 | 1 | |a Abulikemu, Mutalifu |e verfasserin |4 aut | |
| 700 | 1 | |a Jamal, Aqil |e verfasserin |4 aut | |
| 700 | 1 | |a Gereige, Issam |e verfasserin |4 aut | |
| 700 | 1 | |a Freitag, Marina |e verfasserin |4 aut | |
| 700 | 1 | |a Mohammed, Omar F |e verfasserin |4 aut | |
| 700 | 1 | |a Sargent, Edward H |e verfasserin |4 aut | |
| 700 | 1 | |a Bakr, Osman M |e verfasserin |4 aut | |
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