ArticleNature communications2025
Local halide heterogeneity drives surface wrinkling in mixed-halide wide-bandgap perovskites.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Article
- Light-Driven Iodine Loss and Photoluminescence Homogenization in Mixed-Halide Perovskite Semiconductors.The journal of physical chemistry. C, Nanomaterials and interfaces · 2026Article
- Why more junctions do not yet deliver: interconnection challenges in perovskite multijunction solar cells.Energy & environmental science · 2026Review
- Artificial Intelligence-Guided Cosolvent Design for High-Performance Perovskite/Silicon Tandem Solar Cells.Nano-micro letters · 2026Article
- Suppressing Phase Segregation and Improving Stability in Mixed-Halide Perovskites through Spinel Oxide-Directed Epitaxy.Journal of the American Chemical Society · 2026Article
- Quantitative analysis of light-induced ion segregation in mixed-halide perovskites.Journal of applied crystallography · 2026Article
- Crystal-facet-directed all-vacuum-deposited perovskite solar cells.Nature materials · 2026Article
- Unraveling bulk degradation mechanisms of wide-bandgap perovskite absorbers for tandem applications.EES solar · 2026Review
- Enhancing halide ion homogeneity in blade-coated wide-bandgap perovskite for perovskite-organic tandem solar cells.Science advances · 2026Article
- Article
- Scalable solution soaking quenching technique unlocks efficient and durable wide bandgap perovskite solar modules.Nature communications · 2026Article
- Impact of Antisolvent and Gas Quenching on Wrinkling in CsACS applied materials & interfaces · 2025Article
- Point contacts in halide perovskite solar cells: from reduced interfacial recombination to increased ionic field screening.EES solar · 2025Article
- The Importance of Conserving the Stoichiometry of Wide-Bandgap Perovskites in Additive Engineering.ACS applied energy materials · 2025Article
- Homogeneously-Dimensionalizing Perovskite Surface by Dual-Mechano-Chemical Regulation for Efficient Solar Cells.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
Corrections and comments
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Authors and funding
18 authors.
Funding
Abstract
Compositional heterogeneity in wide-bandgap (1.8 - 2.1 eV) mixed-halide perovskites is a key bottleneck in the processing of high-quality solution-processed thin films and prevents their application in efficient multijunction solar cells. Notably, mixed-cation (formamidinium-methylammonium) wide-bandgap perovskite films are prone to form micrometer-scale wrinkles which can interfere with the smooth surfaces ideal for multijunction devices. Here, we study the formation dynamics of wrinkled mixed-halide perovskite films and its impact on the local composition and optoelectronic properties. We use in situ X-ray scattering during perovskite film formation to show that crystallization of bromide-rich perovskites precedes that of mixed-halide phases in wrinkled films cast using an antisolvent-based process. Using nanoscopic X--ray fluorescence and hyperspectral photoluminescence imaging, we also demonstrate the formation of iodide- and bromide-rich phases in the wrinkled domains. This intrinsic spatial halide segregation results in an increased local bandgap variation and Urbach energy. Morphological disorder and compositional heterogeneity also aggravate the formation of sub-bandgap electronic defects, reducing photostability and accelerating light-induced segregation of iodide and bromide ions in thin films and solar cells.
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