Revealing the impact of ammonium ions from different low-dimensional perovskite structures on the film formation and degradation mechanism of FAPbI3 via sequential deposition

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dc.citation.articleNumber31128en_US
dc.citation.journalTitleAPL Materialsen_US
dc.citation.volumeNumber12en_US
dc.contributor.authorWang, Yafeien_US
dc.contributor.authorYuan, Shihaoen_US
dc.contributor.authorFeng, Rongsenen_US
dc.contributor.authorDiao, Zechengen_US
dc.contributor.authorHuang, Jieen_US
dc.contributor.authorLiao, Jiacaien_US
dc.contributor.authorSidhik, Sirajen_US
dc.contributor.authorShuai, Xintingen_US
dc.contributor.authorWang, Meicongen_US
dc.contributor.authorZou, Taoen_US
dc.contributor.authorLiang, Zhongweien_US
dc.contributor.authorZhang, Tingen_US
dc.contributor.authorMohite, Aditya D.en_US
dc.contributor.authorLi, Shibinen_US
dc.date.accessioned2024-10-08T13:28:37Zen_US
dc.date.available2024-10-08T13:28:37Zen_US
dc.date.issued2024en_US
dc.description.abstractIn recent years, the organic–inorganic hybrid perovskite community has been widely employed as the photo-active layer in optical-electronic devices. The black α-phase formamidinium lead iodide (FAPbI3) is the most popular perovskite for realizing high-efficiency solar cells due to its suitable bandgap. However, the issue of stability is also a concern in the research on FAPbI3 solar cells. In this study, different ammonium ions, such as butylamine (BA), guanidine (GA), and butylene diamine (BDA), which are commonly used to construct two-dimensional perovskites, including Ruddlesden–Popper, Dion–Jacobson, and alternating cations in the interlayer space, respectively, were introduced in the fabrication of FAPbI3 using a sequential deposition method. Several structures of PbI2 precursor films were formed by introducing the aforementioned ions, which exhibited different arrangements and connection modes in lead iodides. BA-PbI2 precursor films exhibited higher specific surface areas, which were beneficial to the diffusion, ion exchange, and sequential reaction of FA+. The BDA-PbI2 precursor film slowed down the sequential reaction of FAPbI3 because of reduced van der Waals bonds. The nucleation dynamics and degradation processes of perovskites were deeply investigated in this study. Solar cells based on BA-PbI2, GA-PbI2, and BDA-PbI2 were also fabricated.en_US
dc.identifier.citationWang, Y., Yuan, S., Feng, R., Diao, Z., Huang, J., Liao, J., Sidhik, S., Shuai, X., Wang, M., Zou, T., Liang, Z., Zhang, T., Mohite, A. D., & Li, S. (2024). Revealing the impact of ammonium ions from different low-dimensional perovskite structures on the film formation and degradation mechanism of FAPbI3 via sequential deposition. APL Materials, 12(3), 031128. https://doi.org/10.1063/5.0185501en_US
dc.identifier.digital031128_1_5-0185501en_US
dc.identifier.doihttps://doi.org/10.1063/5.0185501en_US
dc.identifier.urihttps://hdl.handle.net/1911/117930en_US
dc.language.isoengen_US
dc.publisherAIP Publishing LLCen_US
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) license. Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleRevealing the impact of ammonium ions from different low-dimensional perovskite structures on the film formation and degradation mechanism of FAPbI3 via sequential depositionen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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