Stable FAPbI3 hydrate structure by kinetics negotiation for solar cells

Ryan Taoran Wang; Yu Zhang; Xiaoxue Wu; Weiwei Zhang; Longxing Chi; Fan Xu

doi:10.1039/d3se00062a

Stable FAPbI₃ hydrate structure by kinetics negotiation for solar cells

Ryan Taoran Wang, Yu Zhang, Xiaoxue Wu, Weiwei Zhang, Longxing Chi, Fan Xu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The instability of formamidinium lead iodide (FAPbI₃) perovskite has limited its application in renewable energy development, despite the highest power conversion efficiency (PCE) it exhibited. A step forward has been achieved here by negotiating the hydration kinetics via adjusting the moisture partial pressure. The stable hydrate was restricted to precipitating only in the area surrounding the grain boundary under the influence of the moisture partial pressure, avoiding the large strain created by the complete hydration reaction, which preserved the condensed morphology of the perovskite film. The PCE of such a device was thus enhanced to more than 10%, as opposed to the value of 0.32% in previous results, with comparable stability to the pure moisture-stable hydrate-based film, which not only provided a promising solution to the lifetime problem, but also provided fresh inspiration for thin film growth kinetics.

Original language	English
Pages (from-to)	1974-1980
Number of pages	7
Journal	Sustainable Energy and Fuels
Volume	7
Issue number	8
DOIs	https://doi.org/10.1039/d3se00062a
Publication status	Published - 16 Mar 2023
Externally published	Yes

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title = "Stable FAPbI3 hydrate structure by kinetics negotiation for solar cells",

abstract = "The instability of formamidinium lead iodide (FAPbI3) perovskite has limited its application in renewable energy development, despite the highest power conversion efficiency (PCE) it exhibited. A step forward has been achieved here by negotiating the hydration kinetics via adjusting the moisture partial pressure. The stable hydrate was restricted to precipitating only in the area surrounding the grain boundary under the influence of the moisture partial pressure, avoiding the large strain created by the complete hydration reaction, which preserved the condensed morphology of the perovskite film. The PCE of such a device was thus enhanced to more than 10%, as opposed to the value of 0.32% in previous results, with comparable stability to the pure moisture-stable hydrate-based film, which not only provided a promising solution to the lifetime problem, but also provided fresh inspiration for thin film growth kinetics.",

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AU - Wang, Ryan Taoran

AU - Zhang, Yu

AU - Wu, Xiaoxue

AU - Zhang, Weiwei

AU - Chi, Longxing

AU - Xu, Fan

PY - 2023/3/16

Y1 - 2023/3/16

N2 - The instability of formamidinium lead iodide (FAPbI3) perovskite has limited its application in renewable energy development, despite the highest power conversion efficiency (PCE) it exhibited. A step forward has been achieved here by negotiating the hydration kinetics via adjusting the moisture partial pressure. The stable hydrate was restricted to precipitating only in the area surrounding the grain boundary under the influence of the moisture partial pressure, avoiding the large strain created by the complete hydration reaction, which preserved the condensed morphology of the perovskite film. The PCE of such a device was thus enhanced to more than 10%, as opposed to the value of 0.32% in previous results, with comparable stability to the pure moisture-stable hydrate-based film, which not only provided a promising solution to the lifetime problem, but also provided fresh inspiration for thin film growth kinetics.

AB - The instability of formamidinium lead iodide (FAPbI3) perovskite has limited its application in renewable energy development, despite the highest power conversion efficiency (PCE) it exhibited. A step forward has been achieved here by negotiating the hydration kinetics via adjusting the moisture partial pressure. The stable hydrate was restricted to precipitating only in the area surrounding the grain boundary under the influence of the moisture partial pressure, avoiding the large strain created by the complete hydration reaction, which preserved the condensed morphology of the perovskite film. The PCE of such a device was thus enhanced to more than 10%, as opposed to the value of 0.32% in previous results, with comparable stability to the pure moisture-stable hydrate-based film, which not only provided a promising solution to the lifetime problem, but also provided fresh inspiration for thin film growth kinetics.

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Stable FAPbI₃ hydrate structure by kinetics negotiation for solar cells

Abstract

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