Journal ArticleDOI
Negative spherical aberration ultrahigh-resolution imaging in corrected transmission electron microscopy.
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TLDR
Aberration-corrected transmission electron microscopy allows us to image the structure of matter at genuine atomic resolution and a prominent role for the imaging of crystalline samples is played by the negative spherical aberration imaging technique.Abstract:
Aberration-corrected transmission electron microscopy allows us to image the structure of matter at genuine atomic resolution. A prominent role for the imaging of crystalline samples is played by the negative spherical aberration imaging (NCSI) technique. The physical background of this technique is reviewed. The especially high contrast observed under these conditions owes its origin to an enhancing combination of amplitude contrast due to electron diffraction channelling and phase contrast. A number of examples of the application of NCSI are reviewed in order to illustrate the applicability and the state-of-the-art of this technique.read more
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Atomic structure of sensitive battery materials and interfaces revealed by cryo–electron microscopy
Yuzhang Li,Yanbin Li,Allen Pei,Kai Yan,Yongming Sun,Chun-Lan Wu,Lydia-Marie Joubert,Richard Chin,Ai Leen Koh,Yi Yu,John Perrino,Benjamin Butz,Benjamin Butz,Steven Chu,Yi Cui,Yi Cui +15 more
TL;DR: Cryo–electron microscopy can preserve reactive metals and thus reveal the atomic structure of a lithium metal dendrite and atomically resolve individual lithium metal atoms and their interface with the solid electrolyte interphase (SEI).
Journal ArticleDOI
Efficient phase contrast imaging in STEM using a pixelated detector. Part 1: experimental demonstration at atomic resolution.
Timothy J. Pennycook,Timothy J. Pennycook,Andrew R. Lupini,Hao Yang,M.F. Murfitt,Lewys Jones,Peter D. Nellist,Peter D. Nellist +7 more
TL;DR: The method of high efficiency ptychography produces the clearest images, while annular bright field produces almost no contrast for an in-focus aberration-corrected probe.
Journal ArticleDOI
Electron microscopy of solid catalysts--transforming from a challenge to a toolbox
TL;DR: This poster presents a probabilistic procedure for estimating the response of the immune system to x-ray diffraction and describes three different types of responses: “normal”, “spatially predictable” and “drug-like”.
Journal ArticleDOI
On the structural origin of the catalytic properties of inherently strained ultrasmall decahedral gold nanoparticles.
TL;DR: Density functional theory calculations of the resulting modified gold d-band states predict significantly enhanced activity for carbon monoxide oxidation and have important implications for the applications of nanoparticles in chemical process technology, including for heterogeneous catalysis.
Journal ArticleDOI
Direct determination of polarity, faceting, and core location in colloidal core/shell wurtzite semiconductor nanocrystals.
Giovanni Bertoni,Vincenzo Grillo,Rosaria Brescia,Xiaoxing Ke,Sara Bals,Alessandra Catellani,Hongbo Li,Liberato Manna +7 more
TL;DR: It is shown that in two representative cases of rod-shaped nanocrystals in the wurtzite phase (CdSe(core)/CdS(shell) and ZnSe( core)/ZnS( shell) nanorods) the terminations of the polar facets can be resolved unambiguously by combining advanced electron microscopy techniques, such as aberration-corrected HRTEM with exit wave reconstruction or aberration -corrected HAADF-STEM.
References
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BookDOI
Transmission Electron Microscopy
TL;DR: The client would like to get a larger, approximately 3 cm in diameter, well fixed tissue sample, together with a detailed report of the clinical presentation, gross, and microscopic lesions, along with the submission of samples prepared in a similar manner by the client for processing.
Journal ArticleDOI
EMS-A software package for electron diffraction analysis and HREM image simulation in materials science
TL;DR: EMS as mentioned in this paper is a set of computer programs which have been developed not only for the simulation and analysis of high-resolution Electron Microscopy images, but also for the analysis of diffraction patterns.
Book
Transmission Electron Microscopy
Ludwig Reimer,H. Kohl +1 more
TL;DR: Particle Optics of Electrons as mentioned in this paper, wave and wave-optics of electrons, and wave and phase contrast of Electron Spectroscopy have been studied extensively in the literature.
Journal ArticleDOI
Phase contrast, a new method for the microscopic observation of transparent objects
TL;DR: In this paper, the Abbe method is used to calculate the image of a coarse transparent grating with shallow grooves of arbitrary form (phase grating), and the effect of the diffraction by the phase strip is considered and practical methods discussed to make the resulting diffraction-halo as faint as possible.
Journal ArticleDOI
Electron microscopy image enhanced
TL;DR: In this paper, the authors report a solution to this problem for a medium-voltage electron microscope which gives a stunning enhancement of image quality, which can be used to improve the resolution of the electron microscope.