The Synergistic Effect of Additives for Formamidinium-Based Inverted Dion-Jacobson 2D Perovskite Solar Cells with Enhanced Photovoltaic Performance
Two-dimensional (2D) perovskite solar cells (PSCs) have attracted rapid growing attention due to their excellent environmental and operational stability. As an important type of 2D perovskite, Dion-Jacobson (DJ) 2D perovskites exhibit better structural integrity and more stable optoelectronic properties than those of Ruddlesden-Popper (RP) ones because of the elimination of weak van der Waals interactions. Random phase distribution, phase impurity, and weak crystallinity, however, can lead to severe nonradiative recombination losses in 2D perovskites and inferior device stability. Herein, formamidinium chloride (FACl) and lead chloride (PbCl2) are selected as additives to fabricate efficient and stable DJ 2D PSCs. The synergistic effect of additives could efficiently induce crystallization and suppress the low-n phase perovskites. The obtained 2D perovskites exhibit extended charge lifetime and enhanced charge transfer. The corresponding PSC device delivers an efficiency of 16.63% with a significantly improved open-circuit voltage (VOC) of 1.18 V and a fill factor (FF) of 81.65% than the control one. This PCE ranks the highest for inverted FA-based 2D DJ PSCs. Moreover, this device has exhibited exceptional long-term stability, which retains more than 95% of the initial efficiencies at about 50% relative humidity for 600 h.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:15 |
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| Enthalten in: |
ACS applied materials & interfaces - 15(2023), 50 vom: 20. Dez., Seite 58286-58295 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wu, Yixuan [VerfasserIn] |
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| Links: |
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| Themen: |
Additives |
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| Anmerkungen: |
Date Revised 21.12.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acsami.3c11114 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Two-dimensional (2D) perovskite solar cells (PSCs) have attracted rapid growing attention due to their excellent environmental and operational stability. As an important type of 2D perovskite, Dion-Jacobson (DJ) 2D perovskites exhibit better structural integrity and more stable optoelectronic properties than those of Ruddlesden-Popper (RP) ones because of the elimination of weak van der Waals interactions. Random phase distribution, phase impurity, and weak crystallinity, however, can lead to severe nonradiative recombination losses in 2D perovskites and inferior device stability. Herein, formamidinium chloride (FACl) and lead chloride (PbCl2) are selected as additives to fabricate efficient and stable DJ 2D PSCs. The synergistic effect of additives could efficiently induce crystallization and suppress the low-n phase perovskites. The obtained 2D perovskites exhibit extended charge lifetime and enhanced charge transfer. The corresponding PSC device delivers an efficiency of 16.63% with a significantly improved open-circuit voltage (VOC) of 1.18 V and a fill factor (FF) of 81.65% than the control one. This PCE ranks the highest for inverted FA-based 2D DJ PSCs. Moreover, this device has exhibited exceptional long-term stability, which retains more than 95% of the initial efficiencies at about 50% relative humidity for 600 h | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Dion−Jacobson phase | |
| 650 | 4 | |a additives | |
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| 650 | 4 | |a perovskite solar cells | |
| 650 | 4 | |a phase distribution | |
| 700 | 1 | |a Ren, Guoxing |e verfasserin |4 aut | |
| 700 | 1 | |a Lin, Weidong |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Liangang |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Xuanhan |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Chongqing |e verfasserin |4 aut | |
| 700 | 1 | |a Qi, Miao |e verfasserin |4 aut | |
| 700 | 1 | |a Luo, Zhenyu |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Yi |e verfasserin |4 aut | |
| 700 | 1 | |a Min, Yonggang |e verfasserin |4 aut | |
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