ArticleAdvanced materials (Deerfield Beach, Fla.)2025
Atomically Precise Ruddlesden-Popper Faults Induced Enhanced Emission in Ligand Stabilized Mixed Halide Perovskites.
Article in Advanced materials (Deerfield Beach, Fla.), 2025. 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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Who cites it
4 citing papers in PubMed.
- Defect-Functionalization-Mediated Tunneling Drives Nonlinear Photoemission in Perovskites.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Machine Vision-Enabled Octahedral Network Reconstruction and Structural Analysis of Perovskite Quantum Dots.ACS nano · 2026Article
- Atomically Precise Ruddlesden-Popper Faults Induced Enhanced Emission in Ligand Stabilized Mixed Halide Perovskites.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Perovskites to Photonics: Engineering NIR LEDs for Photobiomodulation.Micromachines · 2025Article
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Authors and funding
7 authors.
Funding
Abstract
Atomic-resolution imaging of Ruddlesden-Popper (RP) interfaces is challenging due to their concealment within perovskite nanocrystals (NCs) and the inherent limitations of conventional characterization techniques. In this study, distinctly oriented RP faults have been detected using double-Cs-corrected high-angle annular dark-field scanning transmission electron microscopy (STEM). A simple yet reliable STEM approach to achieve atomically precise identification of Pb, Cs, Br, and I atoms and analyze their spatial atomic arrangements in a single NC is employed. In addition, dislocations caused by lattice mismatch at grain boundaries (GBs) are identified. Lattice strain in GBs and RPs is determined and quantified, revealing that neither of these planar defects introduces the deep trap levels. Therefore, in absence of Pb dangling bonds or Pb─Pb bonds in GBs and RPs plays a crucial role in stabilizing NCs and preventing ion migration. Incorporating n-octylammonium iodide in pristine CsPbBr
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