Evidence map›Paper›PMID 40848736›Full record

ArticleJournal of the American Chemical Society2025

Crystal Growth Modulation of Tin-Lead Halide Perovskites via Chaotropic Agent.

Yueyao Dong, Wen-Xian Zhu, Dong-Tai Wu, Xuan Li, Robert J E Westbrook, Chi-Jing Huang, Zeyin Min, Weiying Hong, Boyuan Wang, Ganghong Min and 5 more

Abstract read
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In one paragraph

Article in Journal of the American Chemical Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

Yueyao DongDepartment of Electronic & Electrical Engineering, University College London, Roberts Building, London WC1E 7JE, U.K.ORCID 0000-0003-4571-3146
Wen-Xian ZhuDepartment of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan.
Dong-Tai WuDepartment of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan.
Xuan LiDepartment of Chemistry, Queen Mary University of London, London E1 4NS, U.K.
Robert J E WestbrookDepartment of Chemistry, University of Washington, Seattle, Washington 98195, United States.
Chi-Jing HuangDepartment of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan.
Zeyin MinDepartment of Chemistry, Queen Mary University of London, London E1 4NS, U.K.
Weiying HongDepartment of Chemistry, Queen Mary University of London, London E1 4NS, U.K.
Boyuan WangDepartment of Electronic & Electrical Engineering, University College London, Roberts Building, London WC1E 7JE, U.K.
Ganghong MinDepartment of Electronic & Electrical Engineering, University College London, Roberts Building, London WC1E 7JE, U.K.
Sanjayan SathasivamSchool of Engineering & Design and Energy, Materials & Environment Research Centre, London South Bank University, London SE1 0AA, U.K.ORCID 0000-0002-5206-9558
Matteo PalmaDepartment of Chemistry, Queen Mary University of London, London E1 4NS, U.K.ORCID 0000-0001-8715-4034
Stoichko DimitrovDepartment of Chemistry, Queen Mary University of London, London E1 4NS, U.K.ORCID 0000-0002-1564-7080
Chieh-Ting LinDepartment of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan.ORCID 0000-0002-9591-0888
Thomas J MacdonaldDepartment of Electronic & Electrical Engineering, University College London, Roberts Building, London WC1E 7JE, U.K.ORCID 0000-0002-7520-6893

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mixed tin-lead (Sn-Pb) halide perovskites, with their tunable bandgaps (1.2-1.4 eV), show great promise for the development of highly efficient all-perovskite tandem solar cells. However, achieving commercial viability and stabilized high efficiency for Sn-Pb perovskite solar cells (PSCs) presents numerous challenges. Among various optimization strategies, the incorporation of additives has proven critical in modulating the crystallization of Sn-Pb perovskites. Despite the widespread use of additives to improve performance, detailed photophysical mechanisms remain unclear. In this work, we elucidate the mechanistic role of guanidinium thiocyanate, a chaotropic agent, in the crystallization of Sn-Pb perovskites. We combine hyperspectral imaging with real-time in situ photoluminescence spectroscopy to study the crystallization process of Sn-Pb perovskites. Our findings reveal that the chaotropic agent modulates the crystal growth rate during perovskite crystallization, resulting in more homogeneous films with reduced nonradiative recombination. We challenge the common assumption that crystallization stops once the solvent evaporates by identifying photoluminescence variations during the cooldown process. The resulting films exhibit a photoluminescence quantum yield of 7.28% and a charge carrier lifetime exceeding 11 μs, leading to a device efficiency of 22.34% and a fill factor of over 80%. This work provides a fundamental understanding of additive-mediated crystal growth and transient cooldown dynamics, advancing the design of high-quality Sn-Pb perovskites for efficient and stable optoelectronics.

Identifiers

PMID40848736
PMCPMC12412113

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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.