Determining the three-dimensional atomic structure of an amorphous solid

Yang, Yao; Zhou, Jihan; Zhu, Fan; Yuan, Yakun; Chang, Dillan J.; Kim, Dennis; Pham, Minh Tuan; Rana, Arjun; Tian, Xuezeng; Yao, Yonggang; Osher, Stanley; Schmid, Andreas K.; Hu, Liangbing; Ercius, Peter; Miao, Jianwei

doi:10.1038/s41586-021-03354-0

Cited by 278 publications

(208 citation statements)

References 72 publications

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“…Drift correction was applied to each image as described elsewhere (17)(18)(19)(20). At each tilt angle, 10 images were registered, and the remaining 9 images were aligned to the first image with cross correlation to subpixel precision.…”

Section: Drift Correction Denoising and Background Subtractionmentioning

confidence: 99%

“…The traced 3D atomic coordinates and chemical species were refined by a gradient descent method as described elsewhere (17)(18)(19)(20). The 3D atomic coordinates in each model were refined by minimizing the error between the experimental images and those calculated from the model.…”

Section: Determination Of 3d Atomic Coordinates and Chemical Speciesmentioning

confidence: 99%

“…Second, nine sets of 12 images with the experimental tilt angles were calculated from the atomic models. An R 1 factor was computed between measured and calculated images (17)(18)(19)(20). By comparing the R 1 factor among the nine cases, the one with the smallest error R 1 was chosen and updated in the atomic model.…”

Section: Determination Of 3d Atomic Coordinates and Chemical Speciesmentioning

confidence: 99%

“…However, real heterointerfaces neither have perfect crystal lattices nor are in the minimum energy states. Here, using a MoS 2 -WSe 2 lateral heterojunction as a model, we applied atomic electron tomography (AET) (16)(17)(18)(19)(20) to determine the 3D atomic coordinates and crystal defects at the heterointerface with picometer precision. We observed various crystal defectsincluding vacancies, substitutional defects, bond distortion, and atomic-scale ripples-and quantitatively characterized the 3D atomic displacements and full strain tensor across the heterointerface.…”

Section: Introductionmentioning

confidence: 99%

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Capturing 3D atomic defects and phonon localization at the 2D heterostructure interface

et al. 2021

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The three-dimensional (3D) local atomic structures and crystal defects at the interfaces of heterostructures control their electronic, magnetic, optical, catalytic, and topological quantum properties but have thus far eluded any direct experimental determination. Here, we use atomic electron tomography to determine the 3D local atomic positions at the interface of a MoS 2 -WSe 2 heterojunction with picometer precision and correlate 3D atomic defects with localized vibrational properties at the epitaxial interface. We observe point defects, bond distortion, and atomic-scale ripples and measure the full 3D strain tensor at the heterointerface. By using the experimental 3D atomic coordinates as direct input to first-principles calculations, we reveal new phonon modes localized at the interface, which are corroborated by spatially resolved electron energy-loss spectroscopy. We expect that this work will pave the way for correlating structure-property relationships of a wide range of heterostructure interfaces at the single-atom level.

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Section: Drift Correction Denoising and Background Subtractionmentioning

confidence: 99%

Section: Determination Of 3d Atomic Coordinates and Chemical Speciesmentioning

confidence: 99%

Section: Determination Of 3d Atomic Coordinates and Chemical Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Capturing 3D atomic defects and phonon localization at the 2D heterostructure interface

et al. 2021

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“…Atomic-resolution electron tomography, conducted via 4D electron microscopy, significantly expands the application of this method to studying a plethora of materials problems including early-stage nucleation of crystals (Zhou et al, 2019). Yang et al (2021) extended this powerful approach to determining the 3D atomic positions of an amorphous solid. The authors studied the short-range and medium-range order (SRO and MRO) in a multi-component glass-forming alloy.…”

Section: Future Prospectsmentioning

confidence: 99%

Advances and Applications of Atomic-Resolution Scanning Transmission Electron Microscopy

Liu

2021

Microsc Microanal

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Although scanning transmission electron microscopy (STEM) images of individual heavy atoms were reported 50 years ago, the applications of atomic-resolution STEM imaging became wide spread only after the practical realization of aberration correctors on field-emission STEM/TEM instruments to form sub-Ångstrom electron probes. The innovative designs and advances of electron optical systems, the fundamental understanding of electron–specimen interaction processes, and the advances in detector technology all played a major role in achieving the goal of atomic-resolution STEM imaging of practical materials. It is clear that tremendous advances in computer technology and electronics, image acquisition and processing algorithms, image simulations, and precision machining synergistically made atomic-resolution STEM imaging routinely accessible. It is anticipated that further hardware/software development is needed to achieve three-dimensional atomic-resolution STEM imaging with single-atom chemical sensitivity, even for electron-beam-sensitive materials. Artificial intelligence, machine learning, and big-data science are expected to significantly enhance the impact of STEM and associated techniques on many research fields such as materials science and engineering, quantum and nanoscale science, physics and chemistry, and biology and medicine. This review focuses on advances of STEM imaging from the invention of the field-emission electron gun to the realization of aberration-corrected and monochromated atomic-resolution STEM and its broad applications.

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Vertically Heterostructured Solid Electrolytes for Lithium Metal Batteries

Tang

et al. 2022

Adv Funct Materials

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Solid‐state electrolytes (SSEs) have been regarded as the most attractive candidate for safe and high‐energy lithium (Li) batteries of the next generation. However, the inability of current SSEs to keep up with the performance requirements of batteries is significantly affected by complex factors, especially ionic conductivity, mechanochemical properties, and coupled ion/electron reaction at the electrified interfaces. Strategies in solid electrolyte chemistries and technologies are put forward to overcome these challenges while widening the breadth of possible applications. Among them, vertically heterostructured solid‐state electrolytes (HSE) are constructed as a most promising strategy, which can take advantage of individual SSE layers together and rationalize the stability and compatibility of electrodes. This review comprehensively summarizes the specific features of the HSE based on the current knowledge of SSE failure modes. Additionally, a detailed review of the recent progress on the HSE design in terms of organic polymer electrolytes and inorganic electrolytes is generated. Finally, the advantages and drawbacks of the design strategies are discussed. New perspectives about HSE are proposed as well.

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Determining the three-dimensional atomic structure of an amorphous solid

Cited by 278 publications

References 72 publications

Capturing 3D atomic defects and phonon localization at the 2D heterostructure interface

Capturing 3D atomic defects and phonon localization at the 2D heterostructure interface

Advances and Applications of Atomic-Resolution Scanning Transmission Electron Microscopy

Vertically Heterostructured Solid Electrolytes for Lithium Metal Batteries

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