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Few-Layer Graphene Modified by Bridge-Like Defects as Li-Storing Cells

材料科学与工程（中英文B版） 2014年第6期4卷 194-197页

作者： Arkady M. Ilyin national nanolaboratory Kazakh National University Almaty Kazakhstan

The paper presents some results of computer simulations and density functional theory calculations of the energetic and structural characteristics of few-layer graphene nanostructures as storing cells for Li. Modeling and calculations allow to reveal some peculiarities in such systems, which can be considered as causes of known dimension instabilities and shortening of the life-time of Li- based electrical power devices. Results of the computational study and calculations predict, that all these problems can be in significant measure solved by modifying of few-layer graphene nanostructures by bridge –like defects, which make them much more stiffer and stable against the deformation.

关键词：存储单元锂电池石墨修改缺陷计算机模拟尺寸不稳定性纳米结构

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Computational Study of Graphene- and Few Layer Graphene-Metal Composites Induced by Radiation

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材料科学与工程（中英文B版） 2013年第3期3卷 161-166页

作者： Arkady M. Ilyin Renata R. Nemkaeva Vladislav V. Kudrjashov national nanolaboratory Kazakh National University AImaty Kazakhstan

Nanomaterials, based on few-layer graphene are considered as promising ones in different technological fields relating to materials science, hydrogen energetic and electrical sources, in particular, lithium –ion rechargeable batteries. The paper presents results of computational study of modifying effect caused by structural defects, particularly by "bridge-like" radiation defects in few-layer graphene nanostructures. Computer modeling and quantum mechanical calculations predict that few layer graphene-metal (Cu, Al, Li) fast bonds can be induced due to production of radiation structural defects.

关键词：量子力学计算金属复合材料辐射诱导石墨锂离子充电电池结构缺陷纳米结构计算机建模

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Under Threshold Structural Damaging in Few-Layer Graphene due to Middle-and Low-Energy Electron Irradiation

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材料科学与工程（中英文A版） 2014年第1期4卷 39-44页

作者： Nazim R. Guseinov Arkady M. Ilyin national nanolaboratory Kazakh National University Almaty Kazakhstan

In the work, it results of Raman spectroscopy of graphene and few-layer graphene (FLG) irradiated by SEM electron beam are presented. Specimens for irradiation were arranged on insulating (SiO 2 ) and conducting (Ni foils) substrates and subjected to irradiation by SEM electron beam in the range of energies 0.2-30 keV with intensities varied in a wide interval. A possible physical mechanism of under threshold energy production of structural defects, like vacancies and "bridge-like" inter-plane bonds, taking into account forming of negatively charged puddles on insulator surface is supposed.

关键词：电子辐照结构缺陷阈值能量低能量石墨电子束照射扫描电子显微镜中东

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