Electron-beam analysis of polymerized KC60.
Electron-beam analysis of polymerized KC60.
复制标题
聚合 KC60 的电子束分析。
DOI：
10.1103/physrevb.53.8155
复制
发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Zettl
中科院分区：
文献类型：
--
作者：
Chopra;Hone;Zettl
我们对聚合产物进行了高分辨电子显微镜(HRTEM)和电子能量损失谱(EELS)研究。证实了聚合材料的链状结构。从HRTEM图像中提取的晶格常数与先前用X射线衍射法测得的晶格常数一致。Eels光谱中的精细结构表明了碳键的性质，以及区别于其他富勒烯的特征。HRTEM和EELS研究表明，聚合体对200keV电子束的损伤具有极强的弹性，这与原始的聚合体的行为形成了鲜明的对比。版权所有：1996美国物理学会。
We have conducted high-resolution transmission electron microscopy (HRTEM) and electron-energy-loss spectroscopy (EELS) studies on polymerized ${\mathrm{KC}}_{60}$. The chainlike structure proposed for the polymerized material is confirmed. Lattice constants extracted from the HRTEM images are consistent with those determined earlier by x-ray diffraction. The fine structure in the EELS spectrum of ${\mathrm{KC}}_{60}$ shows the ${\mathit{sp}}^{2}$ nature of the carbon bonds along with features which distinguish the bonding in this alkali fulleride from that of other fullerenes. Both the HRTEM and EELS studies show that polymerized ${\mathrm{KC}}_{60}$ is exceedingly resilient against damage induced by a 200-keV electron beam, in sharp contrast to the behavior of pristine ${\mathrm{C}}_{60}$. \textcopyright{} 1996 The American Physical Society.