ArticleProceedings of the National Academy of Sciences of the United States of America2024
Experimental evidence for defect tolerance in Pb-halide perovskites.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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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.
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Who cites it
4 citing papers in PubMed, 14 citations in OpenAlex.
- Room-temperature polariton condensate in a quasi-2D hybrid perovskite.Nature communications · 2026Article
- Photoluminescence and Stability of 2D Ruddlesden-Popper Halide Perovskites.Molecules (Basel, Switzerland) · 2025Article
- Multifaceted nature of defect tolerance in halide perovskites and emerging semiconductors.Nature reviews. Chemistry · 2025Review
- Surface Defects Control Bulk Carrier Densities in Polycrystalline Pb-Halide Perovskites.Advanced materials (Deerfield Beach, Fla.) · 2024Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
Abstract
The term defect tolerance (DT) is used often to rationalize the exceptional optoelectronic properties of halide perovskites (HaPs) and their devices. Even though DT lacked direct experimental evidence, it became a "fact" in the field. DT in semiconductors implies that structural defects do not translate to electrical and optical effects (e.g., due to charge trapping), associated with such defects. We present pioneering direct experimental evidence for DT in Pb-HaPs by comparing the structural quality of 2-dimensional (2D), 2D-3D, and 3D Pb-iodide HaP crystals with their optoelectronic characteristics using high-sensitivity methods. Importantly, we get information from the materials' bulk because we sample at least a few hundred nanometers, up to several micrometers, from the sample's surface, which allows for assessing intrinsic bulk (and not only surface-) properties of HaPs. The results point to DT in 3D, 2D-3D, and 2D Pb-HaPs. Overall, our data provide an experimental basis to rationalize DT in Pb-HaPs. These experiments and findings will help the search for and design of materials with real DT.
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Registered trials
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