Trace Water in Lead Iodide Affecting Perovskite Crystal Nucleation Limits the Performance of Perovskite Solar Cells

Trace Water in Lead Iodide Affecting Perovskite Crystal Nucleation Limits the Performance of Perovskite Solar Cells

© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 7 vom: 01. Feb., Seite e2310237
1. Verfasser: Guo, Renjun (VerfasserIn)
Weitere Verfasser: Xiong, Qiu, Ulatowski, Aleksander, Li, Saisai, Ding, Zijin, Xiao, Tianxiao, Liang, Suzhe, Heger, Julian E, Guan, Tianfu, Jiang, Xinyu, Sun, Kun, Reb, Lennart K, Reus, Manuel A, Chumakov, Andrei, Schwartzkopf, Matthias, Yuan, Minjian, Hou, Yi, Roth, Stephan V, Herz, Laura M, Gao, Peng, Müller-Buschbaum, Peter
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article device performance perovskite solar cells synchrotron-based in situ grazing-incidence wide-angle X-ray scattering method trace amount contamination
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520 |a The experimental replicability of highly efficient perovskite solar cells (PSCs) is a persistent challenge faced by laboratories worldwide. Although trace impurities in raw materials can impact the experimental reproducibility of high-performance PSCs, the in situ study of how trace impurities affect perovskite film growth is never investigated. Here, light is shed on the impact of inevitable water contamination in lead iodide (PbI2 ) on the replicability of device performance, mainly depending on the synthesis methods of PbI2 . Through synchrotron-based structure characterization, it is uncovered that even slight additions of water to PbI2 accelerate the crystallization process in the perovskite layer during annealing. However, this accelerated crystallization also results in an imbalance of charge-carrier mobilities, leading to a degradation in device performance and reduced longevity of the solar cells. It is also found that anhydrous PbI2 promotes a homogenous nucleation process and improves perovskite film growth. Finally, the PSCs achieve a remarkable certified power conversion efficiency of 24.3%. This breakthrough demonstrates the significance of understanding and precisely managing the water content in PbI2 to ensure the experimental replicability of high-efficiency PSCs 
650 4 |a Journal Article 
650 4 |a device performance 
650 4 |a perovskite solar cells 
650 4 |a synchrotron-based in situ grazing-incidence wide-angle X-ray scattering method 
650 4 |a trace amount contamination 
700 1 |a Xiong, Qiu  |e verfasserin  |4 aut 
700 1 |a Ulatowski, Aleksander  |e verfasserin  |4 aut 
700 1 |a Li, Saisai  |e verfasserin  |4 aut 
700 1 |a Ding, Zijin  |e verfasserin  |4 aut 
700 1 |a Xiao, Tianxiao  |e verfasserin  |4 aut 
700 1 |a Liang, Suzhe  |e verfasserin  |4 aut 
700 1 |a Heger, Julian E  |e verfasserin  |4 aut 
700 1 |a Guan, Tianfu  |e verfasserin  |4 aut 
700 1 |a Jiang, Xinyu  |e verfasserin  |4 aut 
700 1 |a Sun, Kun  |e verfasserin  |4 aut 
700 1 |a Reb, Lennart K  |e verfasserin  |4 aut 
700 1 |a Reus, Manuel A  |e verfasserin  |4 aut 
700 1 |a Chumakov, Andrei  |e verfasserin  |4 aut 
700 1 |a Schwartzkopf, Matthias  |e verfasserin  |4 aut 
700 1 |a Yuan, Minjian  |e verfasserin  |4 aut 
700 1 |a Hou, Yi  |e verfasserin  |4 aut 
700 1 |a Roth, Stephan V  |e verfasserin  |4 aut 
700 1 |a Herz, Laura M  |e verfasserin  |4 aut 
700 1 |a Gao, Peng  |e verfasserin  |4 aut 
700 1 |a Müller-Buschbaum, Peter  |e verfasserin  |4 aut 
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773 1 8 |g volume:36  |g year:2024  |g number:7  |g day:01  |g month:02  |g pages:e2310237 
856 4 0 |u http://dx.doi.org/10.1002/adma.202310237  |3 Volltext 
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