ArticleNature communications2026
Mechanistic insight into α-to-δ phase transition and stabilizing α-phase FAPbI
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed.
- Mechanistic insight into α-to-δ phase transition and stabilizing α-phase FAPbINature communications · 2026Article
Corrections and comments
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Authors and funding
9 authors.
Funding
Abstract
The structural instability of formamidinium-based perovskite primarily originates from spontaneous α-to-δ phase transition. Although various suppression strategies have been proposed, developing a definitive solution remains challenging due to incomplete understanding of the physical mechanisms governing this phase transition. This work reveals that the coherent interface with tensile strain between perovskite α-phase (011) and δ-phase (110) planes acts as an active site for α-to-δ phase transition. Building on this insight, two-dimensional perovskitoid materials are introduced into the perovskite matrix, which strongly interact with the δ-phase (110) plane to form the 2D/δ interface. The large interfacial strain disrupts δ-phase orientation, suppresses the formation of α/δ transition interfaces, and thus enhances α-phase stability. This strategy enables FA-based perovskite solar cells to achieve an efficiency of 25.61%, with unencapsulated devices maintaining 90% initial efficiency after 1,000 h at 70% relative humidity. This work provides a mechanistic understanding and a universally applicable strategy to stabilize FA-based perovskites.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.