Insight into ion-induced stability degradation in all-perovskite tandem photovoltaics: quantitative characterization and effective manipulation strategies.
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| Title: | Insight into ion-induced stability degradation in all-perovskite tandem photovoltaics: quantitative characterization and effective manipulation strategies. |
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| Authors: | Bao, Yining1,2 (AUTHOR), Ma, Tianshu1,2 (AUTHOR), Zhang, Yuqi1,2 (AUTHOR), Shi, Luolei1,2 (AUTHOR), Qin, Linling1,2 (AUTHOR), Wang, Changlei1,2 (AUTHOR), Cao, Guoyang1,2 (AUTHOR) gycao@suda.edu.cn, Li, Xiaofeng1,2 (AUTHOR) xfli@suda.edu.cn, Yang, Zhenhai1,2 (AUTHOR) zhyang@suda.edu.cn |
| Source: | Science Bulletin. Jul2025, Vol. 70 Issue 14, p2285-2296. 12p. |
| Subjects: | Ion migration & velocity, Photovoltaic power generation, Electric power production, Photoelectricity |
| Abstract: | This study constructs a comprehensive optoelectronic simulation model coupled with ion migration, effectively characterizing ion migration effect in all-perovskite tandem solar cells through hysteresis index at fixed scan rates. The research reveals a dynamic equilibrium mechanism where the ion migration of all-perovskite tandem solar cells varies with the change of photogenerated currents in the two sub-cells. Additionally, a dual-light source compensation experimental testing protocol is proposed to validate this mechanism. Finally, by monitoring the stable power output of tandem cells under different light compensation conditions, it is confirmed that the ion migration in the current-limited sub-cells plays a dominant role in the stability and power output of tandem solar cells. [Display omitted] Ion-induced stability degradation is a critical factor limiting the power conversion efficiency and commercialization potential of perovskite-based solar cells. To mitigate ion migration in perovskite-based devices, various strategies, including defect passivation and ion optimization, have been extensively investigated from the device fabrication and integration perspectives, which, however, are often costly and may negatively impact device efficiency. Notably, all-perovskite tandem solar cells (TSCs), which exhibit more complex ion dynamics compared to single-junction devices, remain poorly understood. In this study, we employ comprehensive photoelectric coupling simulations in conjunction with a self-assembled light source compensation setup to elucidate ion dynamics in all-perovskite TSCs. Specifically, the hysteresis behavior at a defined scan rate is used to quantitatively characterize the extent of ion migration. Our findings reveal that enhanced ion migration occurs in current-limited sub-cells, whereas ion migration in higher-current sub-cells is attenuated due to differential voltage assignments. This study provides valuable insights into the device physics of ion migration in TSCs, facilitating effective control of ion behavior and offering essential guidance for the design of highly efficient and stable TSCs. [ABSTRACT FROM AUTHOR] |
| Copyright of Science Bulletin is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 186642718 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Insight into ion-induced stability degradation in all-perovskite tandem photovoltaics: quantitative characterization and effective manipulation strategies. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Bao%2C+Yining%22">Bao, Yining</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ma%2C+Tianshu%22">Ma, Tianshu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Yuqi%22">Zhang, Yuqi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shi%2C+Luolei%22">Shi, Luolei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qin%2C+Linling%22">Qin, Linling</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Changlei%22">Wang, Changlei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cao%2C+Guoyang%22">Cao, Guoyang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> gycao@suda.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Xiaofeng%22">Li, Xiaofeng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> xfli@suda.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Zhenhai%22">Yang, Zhenhai</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zhyang@suda.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Science+Bulletin%22">Science Bulletin</searchLink>. Jul2025, Vol. 70 Issue 14, p2285-2296. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Ion+migration+%26+velocity%22">Ion migration & velocity</searchLink><br /><searchLink fieldCode="DE" term="%22Photovoltaic+power+generation%22">Photovoltaic power generation</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+power+production%22">Electric power production</searchLink><br /><searchLink fieldCode="DE" term="%22Photoelectricity%22">Photoelectricity</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study constructs a comprehensive optoelectronic simulation model coupled with ion migration, effectively characterizing ion migration effect in all-perovskite tandem solar cells through hysteresis index at fixed scan rates. The research reveals a dynamic equilibrium mechanism where the ion migration of all-perovskite tandem solar cells varies with the change of photogenerated currents in the two sub-cells. Additionally, a dual-light source compensation experimental testing protocol is proposed to validate this mechanism. Finally, by monitoring the stable power output of tandem cells under different light compensation conditions, it is confirmed that the ion migration in the current-limited sub-cells plays a dominant role in the stability and power output of tandem solar cells. [Display omitted] Ion-induced stability degradation is a critical factor limiting the power conversion efficiency and commercialization potential of perovskite-based solar cells. To mitigate ion migration in perovskite-based devices, various strategies, including defect passivation and ion optimization, have been extensively investigated from the device fabrication and integration perspectives, which, however, are often costly and may negatively impact device efficiency. Notably, all-perovskite tandem solar cells (TSCs), which exhibit more complex ion dynamics compared to single-junction devices, remain poorly understood. In this study, we employ comprehensive photoelectric coupling simulations in conjunction with a self-assembled light source compensation setup to elucidate ion dynamics in all-perovskite TSCs. Specifically, the hysteresis behavior at a defined scan rate is used to quantitatively characterize the extent of ion migration. Our findings reveal that enhanced ion migration occurs in current-limited sub-cells, whereas ion migration in higher-current sub-cells is attenuated due to differential voltage assignments. This study provides valuable insights into the device physics of ion migration in TSCs, facilitating effective control of ion behavior and offering essential guidance for the design of highly efficient and stable TSCs. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Science Bulletin is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.scib.2025.04.005 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 2285 Subjects: – SubjectFull: Ion migration & velocity Type: general – SubjectFull: Photovoltaic power generation Type: general – SubjectFull: Electric power production Type: general – SubjectFull: Photoelectricity Type: general Titles: – TitleFull: Insight into ion-induced stability degradation in all-perovskite tandem photovoltaics: quantitative characterization and effective manipulation strategies. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Bao, Yining – PersonEntity: Name: NameFull: Ma, Tianshu – PersonEntity: Name: NameFull: Zhang, Yuqi – PersonEntity: Name: NameFull: Shi, Luolei – PersonEntity: Name: NameFull: Qin, Linling – PersonEntity: Name: NameFull: Wang, Changlei – PersonEntity: Name: NameFull: Cao, Guoyang – PersonEntity: Name: NameFull: Li, Xiaofeng – PersonEntity: Name: NameFull: Yang, Zhenhai IsPartOfRelationships: – BibEntity: Dates: – D: 30 M: 07 Text: Jul2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 20959273 Numbering: – Type: volume Value: 70 – Type: issue Value: 14 Titles: – TitleFull: Science Bulletin Type: main |
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