原子分辨纳米晶碳单层中晶界形成的控制：电子能量的依赖性

IF 2.9 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Microscopy and Microanalysis Pub Date : 2025-02-17 DOI:10.1093/mam/ozae101

Christopher Leist, Max Makurat, Andy Jiao, Xue Liu, Grégory F Schneider, Ute Kaiser

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引用次数: 0

摘要

在这项研究中，我们在球面和色差校正透射电子显微镜下探索了纳米晶碳单层中晶界的动力学，重点研究了它们随电子束能量和电子剂量率的变化。我们证明，清洁的表面、高剂量率和 60 千伏的电子束对于精确控制晶界动态至关重要。我们利用神经网络生成的多边形图对这些线性缺陷的结构进行了评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Control of Grain Boundary Formation in Atomically Resolved Nanocrystalline Carbon Monolayers: Dependence on Electron Energy.

In this study, we explore the dynamics of grain boundaries in nanocrystalline carbon monolayers, focusing on their variation with electron beam energy and electron dose rate in a spherical and chromatic aberration-corrected transmission electron microscope. We demonstrate that a clean surface, a high-dose rate, and a 60 keV electron beam are essential for precise local control over the dynamics of grain boundaries. The structure of these linear defects has been evaluated using neural network-generated polygon mapping.

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来源期刊

Microscopy and Microanalysis 工程技术-材料科学：综合

CiteScore

1.10

自引率

10.70%

发文量

1391

审稿时长

6 months

期刊介绍： Microscopy and Microanalysis publishes original research papers in the fields of microscopy, imaging, and compositional analysis. This distinguished international forum is intended for microscopists in both biology and materials science. The journal provides significant articles that describe new and existing techniques and instrumentation, as well as the applications of these to the imaging and analysis of microstructure. Microscopy and Microanalysis also includes review articles, letters to the editor, and book reviews.