Quantifying Implantation-Induced Damage and Point Defects with Multislice Electron Ptychography.
Sign Up to like & getrecommendations! Published in 2025 at "Nano letters"
DOI: 10.1021/acs.nanolett.5c00170
Abstract: Here, we use multislice electron ptychography to quantify damage introduced by ion implantation of Er into 4H-SiC. Comparing reconstructed volumes from experiment (each 2000 nm3) along the implantation direction, the crystal damage is quantified and… read more here.
Keywords: damage; implantation; implantation induced; multislice electron ... See more keywords
Low-Dose Aberration-Free Imaging of Li-Rich Cathode Materials at Various States of Charge Using Electron Ptychography.
Sign Up to like & getrecommendations! Published in 2018 at "Nano letters"
DOI: 10.1021/acs.nanolett.8b02718
Abstract: Imaging the complete atomic structure of materials, including light elements, with minimal beam-induced damage of the sample is a long-standing challenge in electron microscopy. Annular bright-field scanning transmission electron microscopy is often used to image… read more here.
Keywords: microscopy; electron ptychography; electron; aberration free ... See more keywords
Atomic-Level Imaging of Zeolite Local Structures Using Electron Ptychography.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c12673
Abstract: Zeolites are among the most important heterogeneous catalysts, widely employed in separation reaction, fine chemical production, and petroleum refining. Through rational design of the frameworks, zeolites with versatile functions can be synthesized. Local imaging of… read more here.
Keywords: imaging zeolite; electron ptychography; framework; atomic level ... See more keywords
Electron Ptychography Images Hydrogen Atom Superlattices and 3D Inhomogeneities in Palladium Hydride Nanoparticles.
Sign Up to like & getrecommendations! Published in 2025 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.5c13741
Abstract: When hydrogen atoms occupy interstitial sites in metal lattices, they form metal hydrides (MHx), whose structural and electronic properties can differ significantly from those of the host metals. Determining where the hydrogen is located within… read more here.
Keywords: hydride nanoparticles; palladium hydride; hydrogen; electron ptychography ... See more keywords
Low-dose phase retrieval of biological specimens using cryo-electron ptychography
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-16391-6
Abstract: Cryo-electron microscopy is an essential tool for high-resolution structural studies of biological systems. This method relies on the use of phase contrast imaging at high defocus to improve information transfer at low spatial frequencies at… read more here.
Keywords: cryo electron; phase; low dose; electron ptychography ... See more keywords
Atomically resolved imaging of radiation-sensitive metal-organic frameworks via electron ptychography
Sign Up to like & getrecommendations! Published in 2025 at "Nature Communications"
DOI: 10.1038/s41467-025-56215-z
Abstract: Electron ptychography, recognized as an ideal technique for low-dose imaging, consistently achieves deep sub-angstrom resolution at electron doses of several thousand electrons per square angstrom (e−/Å2) or higher. Despite its proven efficacy, the application of… read more here.
Keywords: resolution; electron ptychography; metal organic; electron ... See more keywords
Electron ptychography reveals a ferroelectricity dominated by anion displacements
Sign Up to like & getrecommendations! Published in 2024 at "Nature Materials"
DOI: 10.1038/s41563-025-02205-x
Abstract: Sodium niobate, a lead-free ferroic material, hosts delicately balanced, competing order parameters, including ferroelectric states that can be stabilized by epitaxial strain. Here we show that the resulting macroscopic ferroelectricity exhibits an unconventional microscopic structure… read more here.
Keywords: dominated anion; anion displacements; electron ptychography; ferroelectricity ... See more keywords
Stability of electron ptychography at low electron dose
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Microscopy"
DOI: 10.1111/jmi.70011
Abstract: Electron ptychography provides a promising avenue towards dose‐efficient, high‐resolution materials characterisation. Prior work demonstrates the feasibility of this approach, but an overarching view on the reliability of ptychographic images in low‐dose scenarios is required. Here,… read more here.
Keywords: ptychography low; low electron; stability electron; electron ptychography ... See more keywords