Abstract Potential-induced degradation (PID) poses a critical threat to the long-term stability of perovskite solar cells (PSCs), driven by sodium ion (<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="43577_2025_901_Article_IEq1.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="31" /> </InlineMediaObject> <EquationSource Format="TEX">$\text {Na}^{\text {+}}$</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mtext>Na</mtext> <mtext>+</mtext> </msup> </math></EquationSource> </InlineEquation>) migration from soda-lime glass substrates to the active layer. This study examines the effect of periodically interspersing PID stress with overnight voltage recovery or shelf storage on 48 PSCs during a 500-h experimental protocol comprising 150 h of accumulated PID stress and 350 h of accumulated recovery or storage. Overnight shelf-stored devices degraded to 79% normalized efficiency, while those subjected to overnight voltage recovery maintained 94 percent. These results highlight overnight voltage recovery as an effective PID mitigation strategy, preserving PSC performance and advancing their stability for practical applications. Graphical abstract Impact statement Potential-induced degradation (PID) is a critical system-level challenge that compromises the long-term stability of perovskite solar cells (PSCs), creating a substantial barrier to their commercialization. This study is the first to successfully adapt a commercially available PID mitigation strategy, originally developed for crystalline silicon devices, to PSCs. By interspersing PID stress with overnight voltage recovery, the PSCs preserved 94% of their initial efficiency after a prolonged 500-h experiment, a marked improvement compared to the 79% retained by samples subjected to overnight shelf storage. This significant advancement provides a practical and scalable approach to improving the durability and reliability of PSCs. We believe that these findings are of crucial importance for the time that the perovskite community is trying to solve the PID issue, which is currently under investigation and still in an initial phase. The findings also underscore the potential of such mitigation strategies to enable broader development of PSCs in various applications. This work represents a vital contribution to advancing clean energy technologies and fostering a more sustainable energy future.

Mitigation of potential-induced degradation in perovskite solar cells using overnight voltage recovery

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发表日期：

2025年4月22日

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Robbe Breugelmans,
Stijn Lammar,
Aranzazu Aguirre,
Tom Aernouts,
Bart Vermang,
Michaël Daenen

摘要

Abstract

Potential-induced degradation (PID) poses a critical threat to the long-term stability of perovskite solar cells (PSCs), driven by sodium ion ( $\text {Na}^{\text {+}}$ ${Na}^{+}$ ) migration from soda-lime glass substrates to the active layer. This study examines the effect of periodically interspersing PID stress with overnight voltage recovery or shelf storage on 48 PSCs during a 500-h experimental protocol comprising 150 h of accumulated PID stress and 350 h of accumulated recovery or storage. Overnight shelf-stored devices degraded to 79% normalized efficiency, while those subjected to overnight voltage recovery maintained 94 percent. These results highlight overnight voltage recovery as an effective PID mitigation strategy, preserving PSC performance and advancing their stability for practical applications.

Graphical abstract

Impact statement

Potential-induced degradation (PID) is a critical system-level challenge that compromises the long-term stability of perovskite solar cells (PSCs), creating a substantial barrier to their commercialization. This study is the first to successfully adapt a commercially available PID mitigation strategy, originally developed for crystalline silicon devices, to PSCs. By interspersing PID stress with overnight voltage recovery, the PSCs preserved 94% of their initial efficiency after a prolonged 500-h experiment, a marked improvement compared to the 79% retained by samples subjected to overnight shelf storage. This significant advancement provides a practical and scalable approach to improving the durability and reliability of PSCs. We believe that these findings are of crucial importance for the time that the perovskite community is trying to solve the PID issue, which is currently under investigation and still in an initial phase. The findings also underscore the potential of such mitigation strategies to enable broader development of PSCs in various applications. This work represents a vital contribution to advancing clean energy technologies and fostering a more sustainable energy future.