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首页> 外文期刊>Chemical Physics Letters >Electronic structures of three-dimensional C-60 polymers studied by high-energy-resolution electron energy-loss spectroscopy based on transmission electron microscopy
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Electronic structures of three-dimensional C-60 polymers studied by high-energy-resolution electron energy-loss spectroscopy based on transmission electron microscopy

机译：基于透射电子显微镜的高能分辨电子能量损失谱研究三维C-60聚合物的电子结构

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摘要

Electronic structures of two three-dimensional (3D) C-60 polymers, which are Immm (3D C-60-Immm) and Fcc (3D C-60-Fcc) crystal symmetry, were investigated by high energy-resolution electron energy-loss spectroscopy based on transmission electron microscopy. Dielectric functions of 3D C-60-Immm and 3D C-60-Fcc were derived from valence electron excitation spectra by Kramers-Kronig analysis. The K-shell excitation spectrum of 3D C-60-Immm specimen showed a step-like structure at the onset, which might correspond to Fermi edge. Therefore, metallic property of 3D C-60-Immm could be confirmed. On the other hand, Fermi edge could not be observed for 3D C-60-Fcc, suggesting to be a semiconductor. (C) 2015 Elsevier B.V. All rights reserved.
机译：通过高能分辨电子能量损失研究了两种Immers（3D C-60-Immm）和Fcc（3D C-60-Fcc）晶体对称的三维（3D）C-60聚合物的电子结构。透射电子显微镜的光谱学。通过Kramers-Kronig分析从价电子激发光谱中推导出3D C-60-Immm和3D C-60-Fcc的介电函数。 3D C-60-Immm样品的K壳激发光谱在开始时显示出阶梯状结构，这可能与费米边缘相对应。因此，可以确认3D C-60-Immm的金属性能。另一方面，对于3D C-60-Fcc，无法观察到费米边缘，表明是半导体。 （C）2015 Elsevier B.V.保留所有权利。

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