用移动电子显微镜直接观察Si和Ge原子

IF 3.1 4区 医学 Q2 BIOPHYSICS Journal of Applied Biomaterials & Functional Materials Pub Date : 2022-12-30 DOI:10.35745/afm2022v02.04.0002
O. Kucherov
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引用次数: 0

摘要

分析了Si/Ge(100)体系的显微镜图像,提出了硅的电子云密度测定方法。由于不同的原子具有不同密度的电子云,因此使用微镜来区分锗、硅和其他化学元素。这一结果完全符合库切罗夫定律,即通过电子云的电流与电子云的密度成正比。显微镜图像显示Si晶体、Si/Ge固溶体及其界面为无缺陷的单晶。利用原子的直接可视化和原子中心到晶格节点的距离测量方法研究了晶体中的局部变形。视觉晶体学是研究应用功能材料的一种新方法。这是关于硅原子真实结构的第一份出版物。
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Direct Visualization of Si and Ge Atoms by Shifting Electron Picoscopy
The picoscopy images of the Si/Ge(100) system were analyzed, and electron cloud densitometry of silicon is presented in this study. The picoscopy is used to distinguish Ge, Si, and other chemical elements because different atoms have different densities of electron clouds. This result is in full accordance with Kucherov's law which states that the current passed through an electron cloud is proportional to the density of the cloud. The picoscopy image has shown Si crystals, Si/Ge solid solution, and their interface as the single crystal without defects. Local deformations in crystals were investigated using methods of direct visualization of individual atoms and measuring the distance of the center of atoms from the node of the crystal lattice. Visual сrystallography becomes a new way to study applied functional materials. This is the first publication on the real structure of a silicon atom.
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来源期刊
Journal of Applied Biomaterials & Functional Materials
Journal of Applied Biomaterials & Functional Materials BIOPHYSICS-ENGINEERING, BIOMEDICAL
CiteScore
4.40
自引率
4.00%
发文量
36
审稿时长
>12 weeks
期刊介绍: The Journal of Applied Biomaterials & Functional Materials (JABFM) is an open access, peer-reviewed, international journal considering the publication of original contributions, reviews and editorials dealing with clinical and laboratory investigations in the fast growing field of biomaterial sciences and functional materials. The areas covered by the journal will include: • Biomaterials / Materials for biomedical applications • Functional materials • Hybrid and composite materials • Soft materials • Hydrogels • Nanomaterials • Gene delivery • Nonodevices • Metamaterials • Active coatings • Surface functionalization • Tissue engineering • Cell delivery/cell encapsulation systems • 3D printing materials • Material characterization • Biomechanics
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